Human Seal

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Downloads and integrity hashes

Everything published here, with its SHA-256 so you can confirm you have the exact file. To check one: run shasum -a 256 on the file and compare.

FileSizeSHA-256
The Human Seal Standard, v0.1 (public review draft)222 KBd92ef5f3e5a1a1b8069558a695bfd2514d5a162ab0f5ce413116813b935a0352
White paper v1.1: verifiable human authority over AI, with the mathematics486 KB0cdbf5a27f9ee916a4c42dd5d190dd310e7e0a30c289253a5ca9d6d2bc8ff63f
Oversight-failure guardrails specification219 KB9f74dbc4d3a0bbcfbc65a75fe01a6c305c203ce6588d0a3105539505ae86b095
Tessera passport and handshake profile, draft v0.1136 KBbe442f55235ab6c8c1177113c0eab5e5a5cc6070b6c9302cff7d85de140f4b3f
Tessera one-pager106 KB2ce1decea041304fa9eac10eb62dc90695b2c683760d23b10edd5d335bb6aea6
Conformance test vectors (JSON)10 KBf92e22ad92ac0866be75d97414d75a5cc290962b3514dec1b8a8ce829eabf820
Standalone Python verifier3 KBf156eceda96f454c067780d1bcbd4e2ca21905dad1f400d1a1af518aa053ba61
JavaScript verifier library8 KBd7a8e185adc0096dcb30235a9e3390dfa31f3a06403bc500a101ce1dfa0ba96b
JavaScript vector runner (Node 20 or later)1 KB52846982920da0105d134ed7dc37214dc2743bf61f73256b91b07887ae32a309
Sample Tessera passport (JSON)1 KB746187f0bc7fe62afc9464becb8a477ae6bea346ae79297fc9f94c2049872d97
Gate check library for the component that runs an action (JavaScript)5 KB5b4132e9d8c11d518624648807869b32b4353aaae21f9820cf0b0da9300e5d0f
MCP server: verify a Seal and run the gate check, offline and read-only (Node)5 KB8d259debf0eaef833717e52597ad1751b8114f7ffe0226d8f7eb51e71f10e081
Ask a person and wait for a verified Seal: the asking side (Node 20 or later)6 KBe19a38c8c080cb7bc624a1bd1eb93accdfb31db62b8e74e3f84a5a908cfd1db2
Claude Code PreToolUse hook that makes a person approve a tool call (Node)5 KB09fef4a5ebae27f32864acdeb5060e3d97610d0c474253ef61d5f3171a68113c