Pith Number

pith:Q7HT3QOU

pith:2012:Q7HT3QOU6NZUTQ6XLCYKEKH2NN

not attested not anchored not stored refs pending

Deformation cohomology of algebraic and geometric structures

Jean-Fran\c{c}ois Pommaret (CERMICS)

arxiv:1207.1964 v1 · 2012-07-09 · math.AP · math-ph · math.AC · math.GR · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q7HT3QOU6NZUTQ6XLCYKEKH2NN}

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	2026-05-18T03:51:24.863664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87cf3dc1d4f37349c3d758b0a228fa6b4f138d9291639490b5140f0319f54aa6

Aliases

arxiv: 1207.1964 · arxiv_version: 1207.1964v1 · doi: 10.48550/arxiv.1207.1964 · pith_short_12: Q7HT3QOU6NZU · pith_short_16: Q7HT3QOU6NZUTQ6X · pith_short_8: Q7HT3QOU

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/Q7HT3QOU6NZUTQ6XLCYKEKH2NN \
  | 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: 87cf3dc1d4f37349c3d758b0a228fa6b4f138d9291639490b5140f0319f54aa6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8fe0f0b67bc71afbbdb4457b17d4b34c03f41c35be80afa847705d2774ff910",
    "cross_cats_sorted": [
      "math-ph",
      "math.AC",
      "math.GR",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-07-09T06:43:16Z",
    "title_canon_sha256": "7cd6b2bb33fd44eeb0a7bc5f3734cecedf7993b200e4e7a967b0f28b40ceeb87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1964",
    "kind": "arxiv",
    "version": 1
  }
}