Pith Number

pith:5DV7FHWI

pith:2007:5DV7FHWIFWGMRCW3DOK5KA3MY6

not attested not anchored not stored refs pending

Combinatorial and geometric methods in topology

Carlo Petronio, Damian Heard, Ekaterina Pervova

arxiv:0706.4368 v1 · 2007-06-29 · 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{5DV7FHWIFWGMRCW3DOK5KA3MY6}

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	2026-05-18T04:31:31.508338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8ebf29ec82d8cc88adb1b95d5036cc7ab1249e46e610e985edaa2b7152b5c7d

Aliases

arxiv: 0706.4368 · arxiv_version: 0706.4368v1 · doi: 10.48550/arxiv.0706.4368 · pith_short_12: 5DV7FHWIFWGM · pith_short_16: 5DV7FHWIFWGMRCW3 · pith_short_8: 5DV7FHWI

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/5DV7FHWIFWGMRCW3DOK5KA3MY6 \
  | 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: e8ebf29ec82d8cc88adb1b95d5036cc7ab1249e46e610e985edaa2b7152b5c7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2123cd91d6d8cce65f7d00c088e04a3d31d90adab9fba2c12c7bd66c4c4d560a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2007-06-29T08:24:05Z",
    "title_canon_sha256": "d90c6d9d95e36c22452b05dfcb0ac70f0b3728ec10e15466df2e6652948e9a15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.4368",
    "kind": "arxiv",
    "version": 1
  }
}