Pith Number

pith:ROGKUR4E

pith:2016:ROGKUR4E7EYKUQH5GWY7OKU66Y

not attested not anchored not stored refs pending

Local and global coincidence homology classes

Jean-Paul Brasselet, Tatsuo Suwa

arxiv:1612.02105 v1 · 2016-12-07 · 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{ROGKUR4E7EYKUQH5GWY7OKU66Y}

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	2026-05-18T00:55:35.319430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b8caa4784f930aa40fd35b1f72a9ef62e0326eb25ed0f2c980d4083573a690f

Aliases

arxiv: 1612.02105 · arxiv_version: 1612.02105v1 · doi: 10.48550/arxiv.1612.02105 · pith_short_12: ROGKUR4E7EYK · pith_short_16: ROGKUR4E7EYKUQH5 · pith_short_8: ROGKUR4E

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/ROGKUR4E7EYKUQH5GWY7OKU66Y \
  | 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: 8b8caa4784f930aa40fd35b1f72a9ef62e0326eb25ed0f2c980d4083573a690f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "071d918ad40f078619bce7d12f28fa28fc1e7f121ba9aebc8215a505a1757543",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2016-12-07T03:11:13Z",
    "title_canon_sha256": "cf38f575dcbdb7bb36139166b12d1f9c7a029c88e9cacfc40cf1b1b240f4300a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.02105",
    "kind": "arxiv",
    "version": 1
  }
}