Pith Number

pith:GMETWTQ7

pith:2012:GMETWTQ7KDPHMVUG2QOTH6MUPL

not attested not anchored not stored refs pending

Gerberto e la misura delle canne d'organo

Costantino Sigismondi

arxiv:1211.0438 v1 · 2012-11-02 · physics.hist-ph · 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{GMETWTQ7KDPHMVUG2QOTH6MUPL}

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	2026-05-18T03:41:41.004395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33093b4e1f50de765686d41d33f9947ad3969ad4c9b57c937240e1f06c84ebf7

Aliases

arxiv: 1211.0438 · arxiv_version: 1211.0438v1 · doi: 10.48550/arxiv.1211.0438 · pith_short_12: GMETWTQ7KDPH · pith_short_16: GMETWTQ7KDPHMVUG · pith_short_8: GMETWTQ7

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/GMETWTQ7KDPHMVUG2QOTH6MUPL \
  | 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: 33093b4e1f50de765686d41d33f9947ad3969ad4c9b57c937240e1f06c84ebf7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29da42071f6e6645efc77630f12a8361689d79b0120045b7f335bb3015949f7b",
    "cross_cats_sorted": [
      "physics.pop-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2012-11-02T12:39:14Z",
    "title_canon_sha256": "ac148e1cb063d8e9eb2768a7cfeb5e500a03e52eba9d015aaa2117cc81d5b5c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.0438",
    "kind": "arxiv",
    "version": 1
  }
}