Pith Number

pith:PD2L4355

pith:1997:PD2L4355IMYCXWPBGQV4B5GRUR

not attested not anchored not stored refs pending

Rules and Reals

Martin Goldstern, Menachem Kojman

arxiv:math/9707204 v1 · 1997-07-16 · 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{PD2L4355IMYCXWPBGQV4B5GRUR}

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	2026-05-18T01:05:35.082162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78f4be6fbd43302bd9e1342bc0f4d1a463df85df2c76c34a2d5ab62e04aaaa8c

Aliases

arxiv: math/9707204 · arxiv_version: math/9707204v1 · doi: 10.48550/arxiv.math/9707204 · pith_short_12: PD2L4355IMYC · pith_short_16: PD2L4355IMYCXWPB · pith_short_8: PD2L4355

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/PD2L4355IMYCXWPBGQV4B5GRUR \
  | 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: 78f4be6fbd43302bd9e1342bc0f4d1a463df85df2c76c34a2d5ab62e04aaaa8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62925a3613fe568098da49dbb9d777b579631fdaeedd2eb70c6eb1b8a4f33340",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "1997-07-16T00:00:00Z",
    "title_canon_sha256": "9ea84035b5815b097cab8756211b0c9a9800d1d3193f923874ea3b90bf2028b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9707204",
    "kind": "arxiv",
    "version": 1
  }
}