Pith Number

pith:64WVMJB5

pith:2014:64WVMJB5X2SVOAFDBVDYV5VMAK

not attested not anchored not stored refs pending

Termination of oblivious chase is undecidable

Jerzy Marcinkowski, Tomasz Gogacz

arxiv:1401.4840 v2 · 2014-01-20 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{64WVMJB5X2SVOAFDBVDYV5VMAK}

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	2026-05-18T01:25:16.332412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f72d56243dbea55700a30d478af6ac02ad0cb70a34e9850e9db259bb439e67b4

Aliases

arxiv: 1401.4840 · arxiv_version: 1401.4840v2 · doi: 10.48550/arxiv.1401.4840 · pith_short_12: 64WVMJB5X2SV · pith_short_16: 64WVMJB5X2SVOAFD · pith_short_8: 64WVMJB5

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/64WVMJB5X2SVOAFDBVDYV5VMAK \
  | 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: f72d56243dbea55700a30d478af6ac02ad0cb70a34e9850e9db259bb439e67b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f27727de1a1b966167be967cf936018dafd7e6eafb6844a4f763c12671db438c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2014-01-20T09:43:59Z",
    "title_canon_sha256": "4e56cc7c0ae8cde5d405b8ca346ad2390ecd76c09f08eaf70591415b886ec31e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.4840",
    "kind": "arxiv",
    "version": 2
  }
}