Pith Number

pith:M2SLGG5W

pith:2018:M2SLGG5WHAU4S42V3WPJDJNRJH

not attested not anchored not stored refs pending

The strange case of Dr. Petit and Mr. Dulong

Roberto Piazza

arxiv:1807.02270 v1 · 2018-07-06 · physics.hist-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{M2SLGG5WHAU4S42V3WPJDJNRJH}

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	2026-05-18T00:11:22.597286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66a4b31bb63829c97355dd9e91a5b149e9e775b4e1b2e34a983c7431491902bd

Aliases

arxiv: 1807.02270 · arxiv_version: 1807.02270v1 · doi: 10.48550/arxiv.1807.02270 · pith_short_12: M2SLGG5WHAU4 · pith_short_16: M2SLGG5WHAU4S42V · pith_short_8: M2SLGG5W

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/M2SLGG5WHAU4S42V3WPJDJNRJH \
  | 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: 66a4b31bb63829c97355dd9e91a5b149e9e775b4e1b2e34a983c7431491902bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dcfb3c93fe12e7ce8b6065b808a7d1b6a924f41752eefe58e416858991fde43",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2018-07-06T06:18:07Z",
    "title_canon_sha256": "8b11b7b5f36c297f5ab29ec4afbab0d0944e5a515678adce1de01371e679dfaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.02270",
    "kind": "arxiv",
    "version": 1
  }
}