Pith Number

pith:4JRV5SS7

pith:2013:4JRV5SS73SJP6KQZDZ67DMFAIK

not attested not anchored not stored refs pending

Simplification of complexes for persistent homology computations

Hubert Wagner, Pawe{\l} D{\l}otko

arxiv:1304.8074 v1 · 2013-04-30 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4JRV5SS73SJP6KQZDZ67DMFAIK}

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	2026-05-18T03:26:50.985227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2635eca5fdc92ff2a191e7df1b0a042a9e42b722b75bd96941993fe735a0839

Aliases

arxiv: 1304.8074 · arxiv_version: 1304.8074v1 · doi: 10.48550/arxiv.1304.8074 · pith_short_12: 4JRV5SS73SJP · pith_short_16: 4JRV5SS73SJP6KQZ · pith_short_8: 4JRV5SS7

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/4JRV5SS73SJP6KQZDZ67DMFAIK \
  | 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: e2635eca5fdc92ff2a191e7df1b0a042a9e42b722b75bd96941993fe735a0839

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f6d09c3f6b0e9a1b8573e08e5782aa2c42bebb3bd895710ad5e45009f5c535c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2013-04-30T17:12:12Z",
    "title_canon_sha256": "3dc4354457ac934d3f6dfadd032a217cc2072bbf99b04ddfe40ecc01c6d66c64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.8074",
    "kind": "arxiv",
    "version": 1
  }
}