Pith Number

pith:F33QQDSC

pith:2001:F33QQDSCK6AADUZ7OWVFHDM5FM

not attested not anchored not stored refs pending

Computation of Cohomology Operations on Finite Simplicial Complexes

Pedro Real, Rocio Gonzalez-Diaz

arxiv:math/0110332 v1 · 2001-10-31 · math.AT · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F33QQDSCK6AADUZ7OWVFHDM5FM}

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	2026-05-18T04:21:51.932701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ef7080e42578001d33f75aa538d9d2b376c2e547cd33bb6fa0a2be2b7a5bbfb

Aliases

arxiv: math/0110332 · arxiv_version: math/0110332v1 · doi: 10.48550/arxiv.math/0110332 · pith_short_12: F33QQDSCK6AA · pith_short_16: F33QQDSCK6AADUZ7 · pith_short_8: F33QQDSC

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/F33QQDSCK6AADUZ7OWVFHDM5FM \
  | 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: 2ef7080e42578001d33f75aa538d9d2b376c2e547cd33bb6fa0a2be2b7a5bbfb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd49782d711024b9fb67b01d85a6963ee8f47dc9f675bde6a00fc18f50323ad5",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "",
    "primary_cat": "math.AT",
    "submitted_at": "2001-10-31T17:42:33Z",
    "title_canon_sha256": "e105c96a271fbdb939d9b7609d51d51a549fbc684d6ae1614933deffd0b1ee87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0110332",
    "kind": "arxiv",
    "version": 1
  }
}