Pith Number

pith:OAVTXI6Z

pith:2018:OAVTXI6ZVBZGDETZUSQI46Y2QI

not attested not anchored not stored refs pending

Grzegorczyk sequence

Toshiyasu Arai

arxiv:1811.09958 v1 · 2018-11-25 · 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{OAVTXI6ZVBZGDETZUSQI46Y2QI}

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	2026-05-17T23:59:58.998871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

702b3ba3d9a872619279a4a08e7b1a82185732c81fa37c7568ef97cc3dfc0bad

Aliases

arxiv: 1811.09958 · arxiv_version: 1811.09958v1 · doi: 10.48550/arxiv.1811.09958 · pith_short_12: OAVTXI6ZVBZG · pith_short_16: OAVTXI6ZVBZGDETZ · pith_short_8: OAVTXI6Z

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/OAVTXI6ZVBZGDETZUSQI46Y2QI \
  | 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: 702b3ba3d9a872619279a4a08e7b1a82185732c81fa37c7568ef97cc3dfc0bad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "298762d7f02052e710ca707900b35aa199229b8cb997a2e4dd6180ca7996c8db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-11-25T06:23:35Z",
    "title_canon_sha256": "4018dfc644bdffad61002710186772001b4e0aff5bd5e4178cd893f3e5d3c61b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09958",
    "kind": "arxiv",
    "version": 1
  }
}