Pith Number

pith:I3O4AVHU

pith:2014:I3O4AVHUZHLFO4G74UT3M3ADFS

not attested not anchored not stored refs pending

A higher homotopic extension of persistent (co)homology

Estanislao Herscovich

arxiv:1412.1871 v1 · 2014-12-05 · math.AT · cs.CG · cs.CV · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I3O4AVHUZHLFO4G74UT3M3ADFS}

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	2026-05-18T02:32:05.863595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46ddc054f4c9d65770dfe527b66c032c9bed2e998648fdab9b48f032315833cf

Aliases

arxiv: 1412.1871 · arxiv_version: 1412.1871v1 · doi: 10.48550/arxiv.1412.1871 · pith_short_12: I3O4AVHUZHLF · pith_short_16: I3O4AVHUZHLFO4G7 · pith_short_8: I3O4AVHU

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/I3O4AVHUZHLFO4G74UT3M3ADFS \
  | 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: 46ddc054f4c9d65770dfe527b66c032c9bed2e998648fdab9b48f032315833cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "352a13280177e5a06d5b890f51640ec26ddf9df229657e9d246ee7ad9d1c2665",
    "cross_cats_sorted": [
      "cs.CG",
      "cs.CV",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-12-05T01:09:19Z",
    "title_canon_sha256": "360ae140d02b2b6813448e936d74c74305515fd8bba2a0cc6bf28ea764da29e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.1871",
    "kind": "arxiv",
    "version": 1
  }
}