Pith Number

pith:EI4HZ35K

pith:2000:EI4HZ35KOROULKGZDGBZ52ABGB

not attested not anchored not stored refs pending

Loop observables for BF theories in any dimension and the cohomology of knots

Alberto S. Cattaneo, Carlo A. Rossi, Paolo Cotta-Ramusino

arxiv:math/0003073 v1 · 2000-03-13 · math.QA · hep-th · math-ph · 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{EI4HZ35KOROULKGZDGBZ52ABGB}

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	2026-07-04T14:34:24.818374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22387cefaa745d45a8d919839ee8013046880b5b703aff9b4b8b3bf33bcdc6cb

Aliases

arxiv: math/0003073 · arxiv_version: math/0003073v1 · doi: 10.48550/arxiv.math/0003073 · pith_short_12: EI4HZ35KOROU · pith_short_16: EI4HZ35KOROULKGZ · pith_short_8: EI4HZ35K

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/EI4HZ35KOROULKGZDGBZ52ABGB \
  | 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: 22387cefaa745d45a8d919839ee8013046880b5b703aff9b4b8b3bf33bcdc6cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4dc2ff6d73e97d7bc5fe225af80e57f16e0bd123facf8cbabb09f4cdf0a56b0",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "math.QA",
    "submitted_at": "2000-03-13T14:23:05Z",
    "title_canon_sha256": "b0cfacd0116a020cad2ce104963dc2eaf2e409abe39823be469e7eb2a4540677"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0003073",
    "kind": "arxiv",
    "version": 1
  }
}