Pith Number

pith:MYZ62NEC

pith:2009:MYZ62NEC76O67KNU5RDJ74J356

not attested not anchored not stored refs pending

Forking in NTP_2 theories

Artem Chernikov, Itay Kaplan

arxiv:0906.2806 v2 · 2009-06-15 · 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{MYZ62NEC76O67KNU5RDJ74J356}

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	2026-05-18T04:26:32.024303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6633ed3482ff9defa9b4ec469ff13bef82f25f90b286d0fbde6d39fb6b48c8c1

Aliases

arxiv: 0906.2806 · arxiv_version: 0906.2806v2 · doi: 10.48550/arxiv.0906.2806 · pith_short_12: MYZ62NEC76O6 · pith_short_16: MYZ62NEC76O67KNU · pith_short_8: MYZ62NEC

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/MYZ62NEC76O67KNU5RDJ74J356 \
  | 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: 6633ed3482ff9defa9b4ec469ff13bef82f25f90b286d0fbde6d39fb6b48c8c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85787e4d3eb4c8ea2e8435b5dea71cd4d3f9082dad5e8aed68e10c724f542546",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2009-06-15T21:17:12Z",
    "title_canon_sha256": "7a1795ad70c16833447320c54ef2e0a4b021ebd7892949a8f1e3f45a8aeb23d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2806",
    "kind": "arxiv",
    "version": 2
  }
}