Pith Number

pith:FH5M3AI4

pith:2014:FH5M3AI4S4P3GHR6ISK5YHQ5N6

not attested not anchored not stored refs pending

A note on Autoreducibility for Infinite Time Register Machines and parameter-free Ordinal Turing Machines

Merlin Carl

arxiv:1402.1063 v1 · 2014-02-05 · 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{FH5M3AI4S4P3GHR6ISK5YHQ5N6}

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	2026-05-18T03:00:01.829792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29facd811c971fb31e3e4495dc1e1d6f8ec68724abe975f2005c0723844df41e

Aliases

arxiv: 1402.1063 · arxiv_version: 1402.1063v1 · doi: 10.48550/arxiv.1402.1063 · pith_short_12: FH5M3AI4S4P3 · pith_short_16: FH5M3AI4S4P3GHR6 · pith_short_8: FH5M3AI4

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/FH5M3AI4S4P3GHR6ISK5YHQ5N6 \
  | 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: 29facd811c971fb31e3e4495dc1e1d6f8ec68724abe975f2005c0723844df41e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3239d109f59c4731873ef858e89dc09176f7709ccf75309d0d97dce685851049",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-02-05T14:47:46Z",
    "title_canon_sha256": "a2d60b70dddbfaf340b1de41226bfde3ab5edc400a23bba17bbd5bf3782c7be8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.1063",
    "kind": "arxiv",
    "version": 1
  }
}