Pith Number

pith:C5YWA54V

pith:2013:C5YWA54VYQ2LJF7ADEOENL56RN

not attested not anchored not stored refs pending

Bicategorical homotopy fiber sequences

A.M. Cegarra, B.A. Heredia, M. Calvo

arxiv:1305.3750 v2 · 2013-05-16 · math.CT · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C5YWA54VYQ2LJF7ADEOENL56RN}

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	2026-05-18T03:13:10.172633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1771607795c434b497e0191c46afbe8b609c16ac99b50517a4a56700aa1c296e

Aliases

arxiv: 1305.3750 · arxiv_version: 1305.3750v2 · doi: 10.48550/arxiv.1305.3750 · pith_short_12: C5YWA54VYQ2L · pith_short_16: C5YWA54VYQ2LJF7A · pith_short_8: C5YWA54V

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/C5YWA54VYQ2LJF7ADEOENL56RN \
  | 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: 1771607795c434b497e0191c46afbe8b609c16ac99b50517a4a56700aa1c296e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e353261118fc5e1874f3dbc15f07f0974545aa31248d8e284b31013a48e0f7e",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2013-05-16T10:33:04Z",
    "title_canon_sha256": "498e9df3bd45a93312e11671430384d7530d68209a9ace29e29748901d04642a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3750",
    "kind": "arxiv",
    "version": 2
  }
}