Pith Number

pith:3HJDEQCU

pith:2008:3HJDEQCUF3DSZN52W2OXVDGTWW

not attested not anchored not stored refs pending

Characteristic Evolution and Matching

Jeffrey Winicour

arxiv:0810.1903 v4 · 2008-10-10 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3HJDEQCUF3DSZN52W2OXVDGTWW}

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	2026-05-18T00:53:35.431187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9d23240542ec72cb7bab69d7a8cd3b5becb8810ceaef6b41575cfdec3cb16e1

Aliases

arxiv: 0810.1903 · arxiv_version: 0810.1903v4 · doi: 10.48550/arxiv.0810.1903 · pith_short_12: 3HJDEQCUF3DS · pith_short_16: 3HJDEQCUF3DSZN52 · pith_short_8: 3HJDEQCU

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/3HJDEQCUF3DSZN52W2OXVDGTWW \
  | 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: d9d23240542ec72cb7bab69d7a8cd3b5becb8810ceaef6b41575cfdec3cb16e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c1318dde0c21a63d7c1f74ec90551f3675572919eeb9e2a14aba8b7be53b9e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-10-10T15:19:34Z",
    "title_canon_sha256": "778be1c5e3497154e05f3bd2ef708c4cd6f415e7582a1d6de2a71c0909deb25a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.1903",
    "kind": "arxiv",
    "version": 4
  }
}