Pith Number

pith:4CAFGYGI

pith:2025:4CAFGYGIFVV7AMMFA6PQOPXFUS

not attested not anchored not stored refs pending

Safety Features for a Centralised AGI Project

Sarah Hastings-Woodhouse

arxiv:2507.21082 v1 · 2025-06-17 · cs.CY

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4CAFGYGIFVV7AMMFA6PQOPXFUS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T11:44:30.890171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0805360c82d6bf03185079f073ee5a4b87ef1ac9eec588df2df038b3a21b60b

Aliases

arxiv: 2507.21082 · arxiv_version: 2507.21082v1 · doi: 10.48550/arxiv.2507.21082 · pith_short_12: 4CAFGYGIFVV7 · pith_short_16: 4CAFGYGIFVV7AMMF · pith_short_8: 4CAFGYGI

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4CAFGYGIFVV7AMMFA6PQOPXFUS \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e0805360c82d6bf03185079f073ee5a4b87ef1ac9eec588df2df038b3a21b60b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0de17eb2f1d513744abc67596dc284b57d30036dbd3afb73852f9607742bdcb2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2025-06-17T07:13:35Z",
    "title_canon_sha256": "7a32bf06b5efb28b9266625ddb4b525da10d92b26ca134234aefd5771e950256"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.21082",
    "kind": "arxiv",
    "version": 1
  }
}