Pith Number

pith:B6K7WT2M

pith:2013:B6K7WT2MP72DIH5LDU75BASBF7

not attested not anchored not stored refs pending

Homologies are infinitely complex

Andras Szucs, Mark Grant

arxiv:1309.1445 v2 · 2013-09-05 · 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{B6K7WT2MP72DIH5LDU75BASBF7}

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	2026-05-18T02:56:59.839309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f95fb4f4c7ff4341fab1d3fd082412ffd5df699a1471299afa888b909cb2ca8

Aliases

arxiv: 1309.1445 · arxiv_version: 1309.1445v2 · doi: 10.48550/arxiv.1309.1445 · pith_short_12: B6K7WT2MP72D · pith_short_16: B6K7WT2MP72DIH5L · pith_short_8: B6K7WT2M

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/B6K7WT2MP72DIH5LDU75BASBF7 \
  | 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: 0f95fb4f4c7ff4341fab1d3fd082412ffd5df699a1471299afa888b909cb2ca8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1711dcf74b8df09854a51c72ff14a855eb7cef4e5be48d2a6df72a77dd8af040",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2013-09-05T19:06:09Z",
    "title_canon_sha256": "67b399f2300c87ca47cc042213b3f2afe63e679e743e9ec7d42e4580dfc14490"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1445",
    "kind": "arxiv",
    "version": 2
  }
}