Pith Number

pith:QC4QYNTN

pith:2015:QC4QYNTNM3FLUTCA5QBZA2EUVG

not attested not anchored not stored refs pending

Modeling and Verification of the Bitcoin Protocol

Ansgar Fehnker (University of the South Pacific), Jaco van de Pol (University of Twente), Kaylash Chaudhary (University of the South Pacific), Marielle Stoelinga (University of Twente)

arxiv:1511.04173 v1 · 2015-11-13 · cs.LO · 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{QC4QYNTNM3FLUTCA5QBZA2EUVG}

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	2026-05-18T01:26:59.496474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80b90c366d66caba4c40ec03906894a9a029c9597b0fc663404f9b69a9bd15f2

Aliases

arxiv: 1511.04173 · arxiv_version: 1511.04173v1 · doi: 10.48550/arxiv.1511.04173 · pith_short_12: QC4QYNTNM3FL · pith_short_16: QC4QYNTNM3FLUTCA · pith_short_8: QC4QYNTN

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/QC4QYNTNM3FLUTCA5QBZA2EUVG \
  | 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: 80b90c366d66caba4c40ec03906894a9a029c9597b0fc663404f9b69a9bd15f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7c124a93861a2722c4e4c6a1c6d2357b507f8cf49d1ea28f6a8268b1cc500fe",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-11-13T06:28:19Z",
    "title_canon_sha256": "6efc912e1635709ea5099d532947734560193dbffcf2783f678fcd7fea22cd38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.04173",
    "kind": "arxiv",
    "version": 1
  }
}