Pith Number

pith:IKQX7OG7

pith:2005:IKQX7OG7UXSGUZMNL7GYBOQABF

not attested not anchored not stored refs pending

Combinatorial triangulations of homology spheres

Basudeb Datta, Bhaskar Bagchi

arxiv:math/0506536 v2 · 2005-06-27 · math.GT · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IKQX7OG7UXSGUZMNL7GYBOQABF}

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	2026-05-18T03:54:49.689950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42a17fb8dfa5e46a658d5fcd80ba000944cda0fd5c7148aaa543f57960fe1f70

Aliases

arxiv: math/0506536 · arxiv_version: math/0506536v2 · doi: 10.48550/arxiv.math/0506536 · pith_short_12: IKQX7OG7UXSG · pith_short_16: IKQX7OG7UXSGUZMN · pith_short_8: IKQX7OG7

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/IKQX7OG7UXSGUZMNL7GYBOQABF \
  | 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: 42a17fb8dfa5e46a658d5fcd80ba000944cda0fd5c7148aaa543f57960fe1f70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "883917a37aceac65e56ed5324ec194e89e75e40b911c8ff22f91837b8ab6932f",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2005-06-27T11:16:42Z",
    "title_canon_sha256": "abb430a2338861f18c0d4f19b1bc56394915f51e72cb19f532a223dd70003635"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0506536",
    "kind": "arxiv",
    "version": 2
  }
}