Pith Number

pith:VNUKV7XG

pith:2011:VNUKV7XGDJCXH3M6QLT753NH5R

not attested not anchored not stored refs pending

Time in the 10,000-Year Clock

Danny Hillis, Jon Giorgini, Rob Seaman, Steve Allen

arxiv:1112.3004 v1 · 2011-12-13 · astro-ph.IM · physics.hist-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VNUKV7XGDJCXH3M6QLT753NH5R}

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	2026-05-18T04:06:31.781076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab68aafee61a4573ed9e82e7feeda7ec7afcba1b6e105dd7b685c14af706781c

Aliases

arxiv: 1112.3004 · arxiv_version: 1112.3004v1 · doi: 10.48550/arxiv.1112.3004 · pith_short_12: VNUKV7XGDJCX · pith_short_16: VNUKV7XGDJCXH3M6 · pith_short_8: VNUKV7XG

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/VNUKV7XGDJCXH3M6QLT753NH5R \
  | 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: ab68aafee61a4573ed9e82e7feeda7ec7afcba1b6e105dd7b685c14af706781c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23958731c58f67e3eb49da07cf55aff3aa331373e83be9dd6fa981135d80074f",
    "cross_cats_sorted": [
      "physics.hist-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-12-13T19:09:24Z",
    "title_canon_sha256": "2533efc0745db81349519c8857d26b001463f63d5f67f7bc1d5d91c53178f20f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.3004",
    "kind": "arxiv",
    "version": 1
  }
}