Pith Number

pith:H2YRTOIP

pith:2014:H2YRTOIPHYYF4U4TRUL7JWG53G

not attested not anchored not stored refs pending

Unambiguous Buchi is weak

Henryk Michalewski, Micha{\l} Skrzypczak

arxiv:1401.4025 v3 · 2014-01-16 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H2YRTOIPHYYF4U4TRUL7JWG53G}

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	2026-05-18T01:15:24.190472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3eb119b90f3e305e53938d17f4d8ddd990984fea17546a7cb5b60c4fec71a516

Aliases

arxiv: 1401.4025 · arxiv_version: 1401.4025v3 · doi: 10.48550/arxiv.1401.4025 · pith_short_12: H2YRTOIPHYYF · pith_short_16: H2YRTOIPHYYF4U4T · pith_short_8: H2YRTOIP

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/H2YRTOIPHYYF4U4TRUL7JWG53G \
  | 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: 3eb119b90f3e305e53938d17f4d8ddd990984fea17546a7cb5b60c4fec71a516

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e4aa35f0f164742c2bd39d038f814c1ec756d82bd3de0f2104ebe7c62b6dea6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2014-01-16T13:45:48Z",
    "title_canon_sha256": "dadd8b7a127ae1237dfbf628efb87338eaceb7bbfd7d3084dee899a04fe7bfd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.4025",
    "kind": "arxiv",
    "version": 3
  }
}