Pith Number

pith:H5SDC74J

pith:1998:H5SDC74J2FZ667LQEUFXK44TC5

not attested not anchored not stored refs pending

Bridged Links and Tangle Presentations of Cobordism Categories

Thomas Kerler

arxiv:math/9806114 v1 · 1998-06-20 · 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{H5SDC74J2FZ667LQEUFXK44TC5}

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	2026-05-18T03:22:06.685160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f64317f89d173ef7d70250b75739317497b094a8ed7d5376b15e568bb6919a0

Aliases

arxiv: math/9806114 · arxiv_version: math/9806114v1 · doi: 10.48550/arxiv.math/9806114 · pith_short_12: H5SDC74J2FZ6 · pith_short_16: H5SDC74J2FZ667LQ · pith_short_8: H5SDC74J

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/H5SDC74J2FZ667LQEUFXK44TC5 \
  | 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: 3f64317f89d173ef7d70250b75739317497b094a8ed7d5376b15e568bb6919a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79a474ca90b6150f52e79f6450743f159c04677089c7ebec1092adcf27f86546",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "1998-06-20T00:32:36Z",
    "title_canon_sha256": "39d025c5d9d12231de99ef2910662bfe6a3536c79d71139eb683071c052d36e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9806114",
    "kind": "arxiv",
    "version": 1
  }
}