Pith Number

pith:BTBZX2NY

pith:2012:BTBZX2NYROVMGYMQXM3BF2YGX6

not attested not anchored not stored refs pending

Persistence stability for geometric complexes

(2) Pomona College - USA), Frederic Chazal (1), Steve Oudot (1) ((1) INRIA Saclay - France, Vin de Silva (2)

arxiv:1207.3885 v3 · 2012-07-17 · math.AT · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BTBZX2NYROVMGYMQXM3BF2YGX6}

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	2026-05-18T03:07:03.951199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cc39be9b88baac36190bb3612eb06bfa6224b6265631863ab72f6e529446fe7

Aliases

arxiv: 1207.3885 · arxiv_version: 1207.3885v3 · doi: 10.48550/arxiv.1207.3885 · pith_short_12: BTBZX2NYROVM · pith_short_16: BTBZX2NYROVMGYMQ · pith_short_8: BTBZX2NY

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/BTBZX2NYROVMGYMQXM3BF2YGX6 \
  | 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: 0cc39be9b88baac36190bb3612eb06bfa6224b6265631863ab72f6e529446fe7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3aacbac09eab27da6d723e2dbb963128137631b8f3177d12af6234a5d8d11e72",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2012-07-17T05:36:56Z",
    "title_canon_sha256": "edd02ad93dd9bf303466da3778ee4715283226a33e4d98d62132e72586053a5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3885",
    "kind": "arxiv",
    "version": 3
  }
}