Catalog session #111

java-httpclient 21.0.11 on Ubuntu 22.04 — identity declared before the run, captured through the live edge.

Verification	controlled
Runner	container
Registered	2026-07-01 00:53
Captured	2026-07-01 00:53
Driver	`capture-matrix/98b90e2`
Run	`monthly-2026-07-01-105150`
Mode	`prod`
Image	`fpcap-java-httpclient`
Image digest	`sha256:06ac4a77dd86`
Matrix SHA-256	`1a769c2353de`
Raw client version	`openjdk 21.0.11 2026-04-21 LTS`

Captures (1)

The first capture is the registration page view; probe captures are the beacon hitting each configured origin with this session's correlation id — for browsers that is how one session records both the TCP and QUIC stacks.

2026-07-01 00:53 · page · tcp (HTTP/2) · thumbprint.me

TLS ClientHello (JA4)	`t13d3113h2_1d947a95fc68_7e1102d2036b`
HTTP request (JA4H)	`ge20nn010000_a510e5066512_000000000000_000000000000`
HTTP/2 frames (Akamai)	`1:16384;2:0;3:0;4:16777216;5:16384;6:393216\|33488897\|0\|a,m,p,s`
TCP SYN (p0f)	`4:54+10:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:0`
TCP SYN (JA4T)	`64240_2-4-8-1-3_1460_10`
User-Agent	`Java-http-client/21.0.11`

verbatim wire tuple (immutable evidence, includes raw variants)

{
  "akamai_h2": "1:16384;2:0;3:0;4:16777216;5:16384;6:393216|33488897|0|a,m,p,s",
  "alpn": "h2",
  "ja4": "t13d3113h2_1d947a95fc68_7e1102d2036b",
  "ja4_o": "t13d3113h2_cdf1781c2960_b5717d5caa7d",
  "ja4_r": "t13d3113h2_0032,0033,0038,0039,0040,0067,006a,006b,009e,009f,00a2,00a3,00ff,1301,1302,1303,c009,c00a,c013,c014,c023,c024,c027,c028,c02b,c02c,c02f,c030,cca8,cca9,ccaa_0005,000a,000b,000d,0011,0017,0023,002b,002d,0032,0033_0403,0503,0603,0807,0808,0804,0805,0806,0809,080a,080b,0401,0501,0601,0402,0303,0301,0302",
  "ja4_ro": "t13d3113h2_1302,1301,1303,c02c,c02b,cca9,c030,cca8,c02f,009f,ccaa,00a3,009e,00a2,c024,c028,c023,c027,006b,006a,0067,0040,c00a,c014,c009,c013,0039,0038,0033,0032,00ff_0000,0005,000a,000b,0010,0011,0017,0023,000d,002b,002d,0032,0033_0403,0503,0603,0807,0808,0804,0805,0806,0809,080a,080b,0401,0501,0601,0402,0303,0301,0302",
  "ja4h": "ge20nn010000_a510e5066512_000000000000_000000000000",
  "ja4h_r": "ge20nn010000_user-agent__000000000000",
  "tcp_ja4t": "64240_2-4-8-1-3_1460_10",
  "tcp_p0f": "4:54+10:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:0",
  "tls_cipher": "TLS_AES_256_GCM_SHA384",
  "tls_version": "TLSv1.3",
  "user_agent": "Java-http-client/21.0.11"
}

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