Pith Number

pith:ZWJYI4RY

pith:2014:ZWJYI4RYB5TA2DH6DOLSAOEWMG

not attested not anchored not stored refs pending

Note on fair coin toss via Bitcoin

Adam Back, Iddo Bentov

arxiv:1402.3698 v1 · 2014-02-15 · 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{ZWJYI4RYB5TA2DH6DOLSAOEWMG}

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	2026-05-18T02:58:55.777990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd938472380f660d0cfe1b9720389661b90f87a80dd63400100d25551ea3e1bd

Aliases

arxiv: 1402.3698 · arxiv_version: 1402.3698v1 · doi: 10.48550/arxiv.1402.3698 · pith_short_12: ZWJYI4RYB5TA · pith_short_16: ZWJYI4RYB5TA2DH6 · pith_short_8: ZWJYI4RY

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/ZWJYI4RYB5TA2DH6DOLSAOEWMG \
  | 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: cd938472380f660d0cfe1b9720389661b90f87a80dd63400100d25551ea3e1bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f488db1a17fe4deefeb9b1c5c56e049c3ccb6f397ce673965e81d1373eeb6528",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2014-02-15T15:10:32Z",
    "title_canon_sha256": "e07d3e3151af30e4acdb1a427d7331a267501c697e228a49989f120b467036d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.3698",
    "kind": "arxiv",
    "version": 1
  }
}