Pith Number

pith:PF55NH5M

pith:2017:PF55NH5MVDALR6GGSCKWKOJK7K

not attested not anchored not stored refs pending

An analysis of Bitcoin OP_RETURN metadata

Livio Pompianu, Massimo Bartoletti

arxiv:1702.01024 v2 · 2017-02-03 · 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{PF55NH5MVDALR6GGSCKWKOJK7K}

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	2026-05-18T00:49:46.472784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

797bd69faca8c0b8f8c6909565392afa977526808ea18fc3a9d698e43ecc22bd

Aliases

arxiv: 1702.01024 · arxiv_version: 1702.01024v2 · doi: 10.48550/arxiv.1702.01024 · pith_short_12: PF55NH5MVDAL · pith_short_16: PF55NH5MVDALR6GG · pith_short_8: PF55NH5M

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/PF55NH5MVDALR6GGSCKWKOJK7K \
  | 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: 797bd69faca8c0b8f8c6909565392afa977526808ea18fc3a9d698e43ecc22bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e5d8f2d3b4c67ed44737664b9944813adcdd29485c00cf06a5389355b5933bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-02-03T14:30:27Z",
    "title_canon_sha256": "d6fd7f04865e598273ca8d55d270781fdcfeed685239578a2c77802d1de753a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.01024",
    "kind": "arxiv",
    "version": 2
  }
}