Pith Number

pith:GW7HFTZE

pith:2011:GW7HFTZEP5GP6KW3UPCBDWJQ5B

not attested not anchored not stored refs pending

The power of backtracking and the confinement of length

Timothy H. McNicholl

arxiv:1106.3310 v1 · 2011-06-16 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GW7HFTZEP5GP6KW3UPCBDWJQ5B}

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	2026-05-18T04:19:53.725957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35be72cf247f4cff2adba3c411d930e8519e6c8d0d5abe38eb03fc49f3d585d5

Aliases

arxiv: 1106.3310 · arxiv_version: 1106.3310v1 · doi: 10.48550/arxiv.1106.3310 · pith_short_12: GW7HFTZEP5GP · pith_short_16: GW7HFTZEP5GP6KW3 · pith_short_8: GW7HFTZE

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/GW7HFTZEP5GP6KW3UPCBDWJQ5B \
  | 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: 35be72cf247f4cff2adba3c411d930e8519e6c8d0d5abe38eb03fc49f3d585d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "937626888c5554f1775c0b95e3cd86c9ce18a3f703d1a3386534c56016391b48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2011-06-16T19:14:14Z",
    "title_canon_sha256": "613216970a69b0b650dca252b58332e3ea54b03d90783d0fd0eb23da503ae181"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.3310",
    "kind": "arxiv",
    "version": 1
  }
}