Pith Number

pith:456E7DLQ

pith:2017:456E7DLQWQU45VACT6NVB5YHIR

not attested not anchored not stored refs pending

Rational methods applied to sectional category and topological complexity

Jos\'e Carrasquel

arxiv:1703.02791 v1 · 2017-03-08 · 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{456E7DLQWQU45VACT6NVB5YHIR}

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	2026-05-18T00:49:05.595921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e77c4f8d70b429ced4029f9b50f7074475afae6ee7a76d676aaa89fa8910e64f

Aliases

arxiv: 1703.02791 · arxiv_version: 1703.02791v1 · doi: 10.48550/arxiv.1703.02791 · pith_short_12: 456E7DLQWQU4 · pith_short_16: 456E7DLQWQU45VAC · pith_short_8: 456E7DLQ

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/456E7DLQWQU45VACT6NVB5YHIR \
  | 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: e77c4f8d70b429ced4029f9b50f7074475afae6ee7a76d676aaa89fa8910e64f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d798f9b60a67035a131ee13dd5a118fbd278c93806afb5b7c86414a6c2d0d4fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-03-08T11:17:48Z",
    "title_canon_sha256": "cd4d3e61b2a8d4d2cb00145b4b4dbc115d0f313bd27602002f4ed3967d6a5823"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.02791",
    "kind": "arxiv",
    "version": 1
  }
}