Pith Number

pith:X45ZCQNN

pith:2014:X45ZCQNNO6CT3BP3A45SZTVILV

not attested not anchored not stored refs pending

The hammock localization preserves homotopies

Oriol Ravent\'os

arxiv:1404.7354 v2 · 2014-04-29 · math.AT · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X45ZCQNNO6CT3BP3A45SZTVILV}

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	2026-05-18T01:24:08.893185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf3b9141ad77853d85fb073b2ccea85d580813d44c5c9eca07f4ebf737bf9516

Aliases

arxiv: 1404.7354 · arxiv_version: 1404.7354v2 · doi: 10.48550/arxiv.1404.7354 · pith_short_12: X45ZCQNNO6CT · pith_short_16: X45ZCQNNO6CT3BP3 · pith_short_8: X45ZCQNN

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/X45ZCQNNO6CT3BP3A45SZTVILV \
  | 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: bf3b9141ad77853d85fb073b2ccea85d580813d44c5c9eca07f4ebf737bf9516

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d8bf040b7f3467d530d87018ed8e75f1d437a209af6dc7094e7fef2e62458d0",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-04-29T13:26:20Z",
    "title_canon_sha256": "1df247c6341e999be4eb52cad6cd4f8cf83392591190f566c312656bb45f6e34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.7354",
    "kind": "arxiv",
    "version": 2
  }
}