Pith Number

pith:RL3QID4U

pith:1994:RL3QID4UY7WGDKKWPMNH4XUZOO

not attested not anchored not stored refs pending

Regular Cocycles and Biautomatic Structures

Lawrence Reeves, Walter D. Neumann

arxiv:math/9411203 v1 · 1994-11-07 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RL3QID4UY7WGDKKWPMNH4XUZOO}

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	2026-05-18T01:05:50.909094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8af7040f94c7ec61a9567b1a7e5e997392c7fd89b35bfcefa1fa00aee20f311b

Aliases

arxiv: math/9411203 · arxiv_version: math/9411203v1 · doi: 10.48550/arxiv.math/9411203 · pith_short_12: RL3QID4UY7WG · pith_short_16: RL3QID4UY7WGDKKW · pith_short_8: RL3QID4U

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/RL3QID4UY7WGDKKWPMNH4XUZOO \
  | 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: 8af7040f94c7ec61a9567b1a7e5e997392c7fd89b35bfcefa1fa00aee20f311b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04bb36b6aa089a1765ea9f18aa6bcb22f643bb1ded8985c9faaf0de1a5b8382b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.GR",
    "submitted_at": "1994-11-07T00:00:00Z",
    "title_canon_sha256": "c7630d30c439b1f958877ff1405a1a71c9302455c78f1e2ea65d71b9eae21c9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9411203",
    "kind": "arxiv",
    "version": 1
  }
}