Pith Number

pith:GHZGUDHM

pith:2015:GHZGUDHMLJAFSIRVCE3X4KEKCX

not attested not anchored not stored refs pending

Decentralized Trusted Timestamping using the Crypto Currency Bitcoin

Andr\'e Gernandt, Bela Gipp, Norman Meuschke

arxiv:1502.04015 v1 · 2015-02-13 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GHZGUDHMLJAFSIRVCE3X4KEKCX}

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	2026-07-05T02:47:54.986282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31f26a0cec5a4059223511377e288a15d3068dcec53080b3e57a875f9f694ca5

Aliases

arxiv: 1502.04015 · arxiv_version: 1502.04015v1 · doi: 10.48550/arxiv.1502.04015 · pith_short_12: GHZGUDHMLJAF · pith_short_16: GHZGUDHMLJAFSIRV · pith_short_8: GHZGUDHM

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/GHZGUDHMLJAFSIRVCE3X4KEKCX \
  | 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: 31f26a0cec5a4059223511377e288a15d3068dcec53080b3e57a875f9f694ca5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42c6bbde0cb4d1d51135fa3e84193e0f5f14972e3a71cdfe3917c1dbbe99c93a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2015-02-13T14:51:54Z",
    "title_canon_sha256": "0f6bfc9ea674356608d4487723badba08c79de776f01489cbb7cd9ea8da02db2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04015",
    "kind": "arxiv",
    "version": 1
  }
}