Pith Number

pith:ZQ63FCDX

pith:2014:ZQ63FCDXCURSFQIHEFH5OICTMO

not attested not anchored not stored refs pending

Simplicial (co)homeology groups: New P.L. homeomorphism invariants of polyhedra

Feifei Fan, Qibing Zheng

arxiv:1412.8269 v1 · 2014-12-29 · 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{ZQ63FCDXCURSFQIHEFH5OICTMO}

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	2026-05-18T02:30:23.643136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc3db28877152322c107214fd7205363868b92d85303d455d19467fa0560a774

Aliases

arxiv: 1412.8269 · arxiv_version: 1412.8269v1 · doi: 10.48550/arxiv.1412.8269 · pith_short_12: ZQ63FCDXCURS · pith_short_16: ZQ63FCDXCURSFQIH · pith_short_8: ZQ63FCDX

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/ZQ63FCDXCURSFQIHEFH5OICTMO \
  | 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: cc3db28877152322c107214fd7205363868b92d85303d455d19467fa0560a774

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5eea02104a8d5b30685dd522c09fa5248a436910d11549338d3513ed74d2d584",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-12-29T06:46:14Z",
    "title_canon_sha256": "7446f23b31b80bc3a3ac9be99c514ce7b3f49555c2d1d60eb94a76af7607d8f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.8269",
    "kind": "arxiv",
    "version": 1
  }
}