Pith Number

pith:QMG2JWOU

pith:2016:QMG2JWOUT22BSF6KGOG2E5XNRU

not attested not anchored not stored refs pending

The Rubber band and the Ruler

Brussels), Jean-Marie Fr\`ere (Physique th\'eorique, ULB

arxiv:1605.02568 v1 · 2016-04-27 · physics.pop-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QMG2JWOUT22BSF6KGOG2E5XNRU}

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	2026-05-18T01:15:16.148914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

830da4d9d49eb41917ca338da276ed8d31a79fd82f208f838fb8ad077f04a7fa

Aliases

arxiv: 1605.02568 · arxiv_version: 1605.02568v1 · doi: 10.48550/arxiv.1605.02568 · pith_short_12: QMG2JWOUT22B · pith_short_16: QMG2JWOUT22BSF6K · pith_short_8: QMG2JWOU

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/QMG2JWOUT22BSF6KGOG2E5XNRU \
  | 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: 830da4d9d49eb41917ca338da276ed8d31a79fd82f208f838fb8ad077f04a7fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af6af9502943c220b573af368d1c0341b1bff7b086a422dd50b25d947faad79e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2016-04-27T13:55:59Z",
    "title_canon_sha256": "b3215ce08b0bfbb3883455da9171c10975f9da67fa43ef39268aacb7ca4fc298"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.02568",
    "kind": "arxiv",
    "version": 1
  }
}