Pith Number

pith:2QVVHF5O

pith:1996:2QVVHF5O72G65EIOG5Z55E5KS7

not attested not anchored not stored refs pending

Generic Saturation

Sy D. Friedman

arxiv:math/9609202 v1 · 1996-09-12 · 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{2QVVHF5O72G65EIOG5Z55E5KS7}

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	2026-05-18T01:05:47.071021Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d42b5397aefe8dee910e3773de93aa97e1432ead77d2aa313c7fa5ae40ec0643

Aliases

arxiv: math/9609202 · arxiv_version: math/9609202v1 · doi: 10.48550/arxiv.math/9609202 · pith_short_12: 2QVVHF5O72G6 · pith_short_16: 2QVVHF5O72G65EIO · pith_short_8: 2QVVHF5O

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/2QVVHF5O72G65EIOG5Z55E5KS7 \
  | 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: d42b5397aefe8dee910e3773de93aa97e1432ead77d2aa313c7fa5ae40ec0643

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2aefa5884f1a0973ab14964b3f08136f91df5432ecb89cc820916e9a404c1dce",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "1996-09-12T00:00:00Z",
    "title_canon_sha256": "439914c7c8c4ec224798b409a082548a1de45e4e04e9b4cdd2d919ca77a6705d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9609202",
    "kind": "arxiv",
    "version": 1
  }
}