Pith Number

pith:QI7Z3AQE

pith:1995:QI7Z3AQENWLAOU7QUPMR2ART2I

not attested not anchored not stored refs pending

Locally Constant Functions

Joan Hart, Kenneth Kunen

arxiv:math/9505204 v1 · 1995-05-08 · 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{QI7Z3AQENWLAOU7QUPMR2ART2I}

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	2026-05-18T01:05:48.694659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

823f9d82046d960753f0a3d91d0233d23e411ae4cc51a97eec9a6bdadb88b2f8

Aliases

arxiv: math/9505204 · arxiv_version: math/9505204v1 · doi: 10.48550/arxiv.math/9505204 · pith_short_12: QI7Z3AQENWLA · pith_short_16: QI7Z3AQENWLAOU7Q · pith_short_8: QI7Z3AQE

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/QI7Z3AQENWLAOU7QUPMR2ART2I \
  | 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: 823f9d82046d960753f0a3d91d0233d23e411ae4cc51a97eec9a6bdadb88b2f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53ecf6e9daa3e2d31d336f0ecbd2ea55c8af5b4668443718a3fafbaf2108b1ce",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "1995-05-08T00:00:00Z",
    "title_canon_sha256": "e8282010f79841372cf7f340bc306ef84f3a364d9b9a93ae0e1caac0922211ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9505204",
    "kind": "arxiv",
    "version": 1
  }
}