Pith Number

pith:TQKUAFBS

pith:2023:TQKUAFBSU4DGF54EXLFCJSK75P

not attested not anchored not stored refs pending

Logic and computation as combinatorics

Norihiro Yamada

arxiv:2306.07806 v1 · 2023-06-13 · math.LO · cs.LO · 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{TQKUAFBSU4DGF54EXLFCJSK75P}

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	2026-07-05T06:20:09.147242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c15401432a70662f784baca24c95febe66ba25e982b21043938ece04fa4faac

Aliases

arxiv: 2306.07806 · arxiv_version: 2306.07806v1 · doi: 10.48550/arxiv.2306.07806 · pith_short_12: TQKUAFBSU4DG · pith_short_16: TQKUAFBSU4DGF54E · pith_short_8: TQKUAFBS

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/TQKUAFBSU4DGF54EXLFCJSK75P \
  | 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: 9c15401432a70662f784baca24c95febe66ba25e982b21043938ece04fa4faac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e58ae59f281d7aa76f671782dd0a406fc95ef6f601d64db18ef9204a9bf8560",
    "cross_cats_sorted": [
      "cs.LO",
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2023-06-13T14:29:34Z",
    "title_canon_sha256": "81730ac5c106fae04b411a59f20df19a81b3b0b971fc3e3544010cc870224baf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2306.07806",
    "kind": "arxiv",
    "version": 1
  }
}