In Defendant-Appellant Aliaksandr Zhyltsou’s criminal trial on a single charge of transfer of a false identification document, the government offered into evidence a printed copy of a web page, which it claimed was Zhyltsou’s profile page from a Russian social networking site akin to Facebook. The district court (Glasser, /.) admitted the printout over Zhyltsou’s objection that the page had not been properly authenticated under Rule 901 of the Federal Rules of Evidence. We conclude that the district court-erred in admitting the web page evidence because the government presented insufficient evidence that the page was what the government claimed it to be — that is, Zhyltsou’s profile page, as opposed to a profile page on the Internet that Zhyltsou did not create or control. Because the district court abused its discretion in admitting the evidence, and because this error was not harmless, we vacate the conviction and remand for retrial.
BACKGROUND
Aliaksandr Zhyltsou was convicted after trial on a single count of the unlawful transfer of a false identification document, in violation of 18 U.S.C. § 1028(a)(2) and (b)(l)(A)(ii). At trial, the government’s principal evidence against Zhyltsou. was the testimony of Vladyslav Timku, a Ukrainian citizen residing in Brooklyn who testified pursuant to a cooperation agreement and who had earlier pled guilty to conspiracy to commit wire fraud, aggravated identity theft, and impersonating a diplomat. Timku testified that he was a friend of Zhyltsou’s and was familiar with Zhyltsou’s work as a forger because he had previously paid Zhyltsou to create false diplomatic identification documents in a scheme to avoid taxes on the purchase and resale of luxury automobiles through a corporation called Martex International. Timku said that in the summer of 2009 he asked Zhyltsou to create a forged birth certificate that would reflect that Timku was the father of an invented infant daughter. Timku sought the birth certificate in an attempt to avoid compulsory military service in his native Ukraine, which permits a deferment of service for the parents of children under three years of age. According to Timku, Zhyltsou agreed to forge the birth certificate without charge, as a “favor,” and began creating the fake birth certificate on a computer while the pair chatted in a Brooklyn Internet café. Timku testified that Zhyltsou sent the completed forgery to Timku via e-mail on August 27, 2009 fromazmadeuz@gmail. com (the “Gmail address”), an e-mail address that Timku had often used to correspond with Zhyltsou. After receiving the document, Timku thanked Zhyltsou and then went on to use the fake document to receive the deferment from military service that he sought. The government introduced a copy of the e-mail, with the forged birth certificate as an attachment, which reflected that it was sent to Timku’s e-mail address, “timkuvlad@yahoo.com,” fromazmadeuz@gmail.com.
The government presented several other witnesses who corroborated certain aspects of Timku’s testimony — regarding the falsity of the birth certificate, the Ukrainian military deferment for parents of young children, and the path of the e-mail in question through servers in California. There was expert testimony to the effect that the e-mail originated in New York, but no evidence as to what computer it was sent from, or what IP addresses were linked to it. Thus, near the conclusion of the prosecution’s case, only Timku’s testi
During his testimony, Special Agent Cline identified the printout as being from “the Russian equivalent of Facebook.” He noted to' the jury that the page purported to be the profile of “Alexander Zhiltsov” (an alternate spelling of Zhyltsou’s name), and that it • contained a photograph of Zhyltsou. Importantly for the government’s case, Special Agent Cline next pointed out that under the heading, “Contact Information,” the profile listed “Azma-deuz” as “Zhiltsov’s” address on Skype (a service that Special Agent Cline described as a “voiceover IP provider”). The web page also reflected that “Zhiltsov” worked at a company called “Martex International” and at an Internet café called “Cyber Heaven,” which corresponded with Tim-ku’s earlier testimony that Zhyltsou and Timku had both worked for those entities. On cross-examination, Special Agent Cline admitted that he had only a “cursory familiarity” with VK, had never used the site except to view this single page, and did not
It has the defendant’s profile picture on it. You’ll see that it confirms other facts that you’ve learned about the defendant. That he worked at Martex and at Cyber Heaven, for example. He told [a DSS agent] that he’s from Belarus. This page says he’s from Minsk, the capital of Belarus. And on that page, you’ll see the name he uses on Skype which, like e-mail, is a way to correspond with people over the Internet.
Azmadeuz. That [is] his online identity, ladies and gentlemen, for Skype and for [G]mail. That is [w]hat the defendant calls himself. Timku even told you that the defendant sometimes uses azmadeuz@yahoo.com. That [is] his own name on the Internet. Timku didn’t make it up for him. The defendant made it up for himself.
Aliaksandr Zhyltsou made a fake birth certificate and he sent it through e-mail. Those are the facts. The defendant is guilty. Find him so. Thank you.
G.A. 65-66.
After deliberating for approximately a day and a half, the jury found Zhyltsou guilty on the single charge contained in the indictment. Subsequently, the district court sentenced Zhyltsou principally to time served and one year of post-release supervision.
DISCUSSION
The preliminary decision regarding authentication is committed to the district court, United States v. Sliker,
I.
“The requirement of authentication is ... a condition precedent to admitting evidence.” Sliker,
.Rule 901 “does not definitively establish the nature or quantum of proof that is required” preliminarily to authenticate an item of evidence. Id. at 499. “The type and quantum of evidence” required is “related to the purpose for which the evidence is offered,” id. at 488, and depends upon a context-specific determination whether the proof advanced is sufficient to support a finding that the item in question is what its proponent claims it to be. We have said that “[t]he bar for authentication of evidence is not particularly high.” United States v. Gagliardi,
The “proof of authentication may be direct or circumstantial.” United States v. Al-Moayad,
Some examples illustrate the point. For instance, we have said that a document can be authenticated by “distinctive characteristics of the document itself, such as its ‘[a]ppearance, contents, substance, internal patterns, or other distinctive characteristics, taken in conjunction with the circumstances.’ ” Maldonado-Rivera,
As we have said, “[ajuthentication of course merely renders [evidence] admissible, leaving the issue of [its] ultimate reliability to the jury.” United States v. Tropeano,
II.
Based on these principles, we conclude that the district court abused its discretion in admitting the VK web page, as it did so without proper authentication under Rule 901. The government did not provide a sufficient basis on which to conclude that the proffered printout was what the government claimed it to be-Zhylt-sou’s profile page-and there was thus insufficient evidence to authenticate the VK page and to permit its consideration by the jury.
In the district court, the government initially advanced the argument that it offered the evidence simply as a web page that existed on the Internet at the time of trial, not as evidence of Zhyltsou’s own statements. The prosecution first represented to the district court that it was presenting the VK page only as “what [Special Agent Cline] is observing today on the Internet, just today,” J.A. 26, conceded that “the agent does not know who created it,” and averred that Special Agent Cline would testify only that “he saw [the VK page] and this is what it says,” J.A. 30. Consistent with these representations, Special Agent Cline testified only that the page containing information related to Zhyltsou was presently accessible on the Internet and provided no extrinsic information showing that Zhyltsou was the page’s author or otherwise tying the page to Zhyltsou.
At other times, however, the government repeatedly made a contrary argument to both the trial court and the jury, and insisted that the page belonged to and was authored by Zhyltsou.
As noted above, Rule 901 requires “evidence sufficient to support a finding that the item is what the proponent claims it is.” It is uncontroverted that information about Zhyltsou appeared on the VK page: his name, photograph, and some details about his life consistent with Timku’s testimony about him. But there was no evidence that Zhyltsou himself had created the page or was responsible for its contents. Had the government sought to introduce, for instance, a flyer found on the street that contained Zhyltsou’s Skype address and was purportedly written or authorized by him, the district court surely would have required some evidence that the flyer did, in fact, emanate from Zhylt-sou. Otherwise, how could the statements in the flyer be attributed to him? Cf. Dhinsa,
It is true that the contents or “distinctive characteristics” of a document can sometimes alone provide circumstantial evidence sufficient for authentication. Fed. R. Evid. 901(b)(4). For example, a writing may be. authenticated by evidence “that the contents of the writing were not a matter of common knowledge.” Maldonado-Rivera,
We express no view on what kind of evidence would have been sufficient to authenticate the YK page and warrant its consideration by the jury. Evidence may be authenticated in many ways, and as with any piece of evidence whose authenticity is in question, the "type and quantum" of evidence necessary to authenticate a web page will always depend on context. Sliker,
III.
An erroneous evidentiary decision that has no constitutional dimension is reviewed for harmless error. United States v. Dukagjini,
1) the overall strength of the prosecu-ion's ease; (2) the prosecutor's conduct with respect to the improperly admitted viclence; (3) the importance of the Trongly admitted evidence; and (4) Thether such evidence was cumulative f other properly admitted evidence.
United States v. McCallum,
It was, of course, vital to the government's case to prove that it was in fact Zhyltsou who used the Gmail address to send the fake birth certificate to Timku. This was the only point truly in contention at trial. Further, the prosecution's case on this point was far from overwhelming: with the limited exception of the circumstantial evidence that the Gmail account was closed shortly after Zhyltsou encountered federal agents, the only evidence that connected Zhyltsou to the emailed birth certificate, other than the VK page,
The jury may well have been reluctant to rely on Timku’s testimony alone. Pursuant to his cooperation agreement, Timku pled guilty to three felonies — aggravated identity theft, impersonating a diplomat, and conspiracy to commit wire fraud— each of which involved deceit. Timku’s business operation, which he said he carried on with Zhyltsou’s help,” involved using fake identification papers and shell companies to commit tax fraud in the course of exporting luxury vehicles for sale in Ukraine and Russia. Timku admitted that he had destroyed evidence and fled the country after federal agents questioned him concerning this scheme. He also testified that he paid a United States citizen to enter into a sham marriage with him and opened a joint bank account in their names with the intention of deceiving immigration authorities into thinking that the marriage was genuine. All this likely undermined Timku’s credibility, and may even have led the jury to believe that Timku could have used his expertise in fabricating identities and documents to create false evidence to substantiate his testimony against Zhyltsou.
Moreover, as the government recognized, the VK page provided significant corroboration of Timku’s testimony that the Gmail address belonged to Zhyltsou. As the AUSA argued in urging that the VK page should be admitted by the district court, the fact that “this particularly unique section of letters that make up his e-mail address [is] found on [Zhyltsou’s] Facebook page with his picture go[es] a long way to proving that he is the owner of this address.” J.A. 25-26. The district judge agreed that the evidence tended to establish that the Gmail address was Zhyltsou’s. J.A. 29-30. Indeed, the AUSA pressed the significance of the VK profile in the final words of her summation, arguing to the jury that the defendant’s own web page linked him — through the moniker “Azmadeuz” — to the Gmail account used to send the birth certificate. G.A. 65-66.
In sum, the government’s proof on the issue of whether Zhyltsou transferred the fake birth certificate was not unassailable. As a result, the printout of the VK profile was by no means cumulative, but played an important role in the government’s case, which the AUSA augmented by highlighting the evidence in her summation. See United States v. Grinage,
CONCLUSION
For the foregoing reasons, the judgment of the district court is VACATED and the case is REMANDED for a new trial.
Notes
. The government did introduce evidence showing that the azmadeuz@gmail.com account was closed two days after Zhyltsou had an encounter with federal agents. In summation, the government argued that the closure circumstantially supported the theory that Zhyltsou was the owner of the account. However, federal agents were questioning Timku that day regarding other criminal charges. (Zhyltsou happened to be present and was himself questioned only briefly.) The defense intimated in its summation that Tim-ku would also have had reason to delete the account at that time.
. Zhyltsou also objected to the district court’s admission of the VK page on the ground that it was not disclosed to him before trial in violation of Rule 16 of the Federal Rules of Criminal Procedure. Rule 16 provides grounds for reversal if the "government’s untimely disclosure of the evidence” caused the defendant "substantial prejudice.” United States v. Salameh,
. Zhyltsou was denied bail pending trial; all told, he spent approximately one year in detention.
. We note that Rule 902 provides for several classes of "self-authenticating” evidence— that is, evidence “requir[ing] no extrinsic evidence of authenticity in order to be admitted.” Fed.R.Evid. 902. None of the categories enumerated in the rule (which include,
. Some courts have suggested applying “greater scrutiny” or particularized methods for the authentication of evidence derived from the Internet due to a “heightened possibility for manipulation.” Griffin v. State,
. Certain statements by the district court could also support this view of the govern-merit’s theory of the introduction of the VK page-notably, the district court’s suggestion that the page was properly authenticated solely by the fact that it was "coming off the Internet now.” J.A. 32. As noted below, however, this rationale for authentication is inconsistent with the manner in which the evidence was admitted by the district court and the way it was employed by the government at trial.
.See J.A. 21 (AUSA to the district court: “This is the defendant’s Russian Facebook page.... [It] contains his Skype address which is the
. While the government presented several witnesses to bolster other parts of Timku’s testimony, none presented any evidence that Zhyltsou had sent the birth certificate. Those witnesses testified, respectively, (1) that the invented infant’s birth certificate was in fact a forgery; (2) that Ukraine imposes compulsive military service that permits certain exemptions, including for those with children under three years of age; (3) that the e-mail with the birth certificate attached did in fact travel from azmadeuz@gmail.com to Timku’s e-mail address; and (4) that in 2011 Zhyltsou had been briefly stopped and questioned by federal agents, shortly after which (5) the Gmail account that was used to send the birth certificate was closed.