Pith Number

pith:R4OMGXGN

pith:2012:R4OMGXGNKVBLLSHJV64ALWMLMJ

not attested not anchored not stored refs pending

Physics inspired algorithms for (co)homology computation

Pawe{\l} D{\l}otko, Ruben Specogna

arxiv:1212.1360 v1 · 2012-12-06 · cs.CE · 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{R4OMGXGNKVBLLSHJV64ALWMLMJ}

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	2026-05-18T03:39:04.145672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f1cc35ccd5542b5c8e9afb805d98b6256590877a98e2f39dc237683b23196f3

Aliases

arxiv: 1212.1360 · arxiv_version: 1212.1360v1 · doi: 10.48550/arxiv.1212.1360 · pith_short_12: R4OMGXGNKVBL · pith_short_16: R4OMGXGNKVBLLSHJ · pith_short_8: R4OMGXGN

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/R4OMGXGNKVBLLSHJV64ALWMLMJ \
  | 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: 8f1cc35ccd5542b5c8e9afb805d98b6256590877a98e2f39dc237683b23196f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "515b5bb846d0b6f5b1c971364f4c254c7b5495ff01c09cbba29ecd13e3a40598",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2012-12-06T16:03:10Z",
    "title_canon_sha256": "2374ad623979719bd2522108c2c53831d3ab1ebb7860b7d05a3305b912d2265f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1360",
    "kind": "arxiv",
    "version": 1
  }
}