Pith Number

pith:OWHHOFIS

pith:2012:OWHHOFISSFNPV2FEUFRLI33YC2

not attested not anchored not stored refs pending

On the Complexity of Equivalence of Specifications of Infinite Objects

Dimitri Hendriks, Joerg Endrullis, Rena Bakhshi

arxiv:1207.0158 v1 · 2012-06-30 · cs.LO · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OWHHOFISSFNPV2FEUFRLI33YC2}

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	2026-05-18T03:52:00.072195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

758e771512915afae8a4a162b46f78168247bc1f6331f8c08748984176e89d0b

Aliases

arxiv: 1207.0158 · arxiv_version: 1207.0158v1 · doi: 10.48550/arxiv.1207.0158 · pith_short_12: OWHHOFISSFNP · pith_short_16: OWHHOFISSFNPV2FE · pith_short_8: OWHHOFIS

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/OWHHOFISSFNPV2FEUFRLI33YC2 \
  | 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: 758e771512915afae8a4a162b46f78168247bc1f6331f8c08748984176e89d0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "354460a2e9e6d74448f0d9af1b280e0c9c9927b4e38d370fbb21da41aa86da5f",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2012-06-30T22:06:21Z",
    "title_canon_sha256": "46df7ee2399f78c6266a360ee11667e14b47478d406eaa1f71ae569a723715ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.0158",
    "kind": "arxiv",
    "version": 1
  }
}