Pith Number

pith:RPOIMJEY

pith:1999:RPOIMJEY5KVZ4V7XUZDFJLJIZB

not attested not anchored not stored refs pending

Towards Martin's Minimum

Andrzej Roslanowski, Tomek Bartoszynski

arxiv:math/9904163 v1 · 1999-04-29 · 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{RPOIMJEY5KVZ4V7XUZDFJLJIZB}

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	2026-05-18T03:37:19.327507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bdc862498eaab9e57f7a64654ad28c8670a5b72fd16bab1240e8a101e687282

Aliases

arxiv: math/9904163 · arxiv_version: math/9904163v1 · doi: 10.48550/arxiv.math/9904163 · pith_short_12: RPOIMJEY5KVZ · pith_short_16: RPOIMJEY5KVZ4V7X · pith_short_8: RPOIMJEY

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/RPOIMJEY5KVZ4V7XUZDFJLJIZB \
  | 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: 8bdc862498eaab9e57f7a64654ad28c8670a5b72fd16bab1240e8a101e687282

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5c0ed55cf5a00d1447f60c295fca475506dab69b1003123f6daa1c71b4da8e1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "1999-04-29T01:23:26Z",
    "title_canon_sha256": "f621c445b8a77439d62c40a708b78c15977dfac004a6e58e1b2c651069fb5f06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9904163",
    "kind": "arxiv",
    "version": 1
  }
}