Pith Number

pith:PQYMAVCV

pith:2011:PQYMAVCVK4WSCEQ2CNEIMDB7JM

not attested not anchored not stored refs pending

Formal Component-Based Semantics

Ken Madlener (Radboud University Nijmegen, Marko van Eekelen (Radboud University Nijmegen, Sjaak Smetsers (Radboud University Nijmegen, the Netherlands)

arxiv:1108.3125 v1 · 2011-08-16 · cs.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{PQYMAVCVK4WSCEQ2CNEIMDB7JM}

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	2026-05-18T04:15:27.917323Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c30c05455572d21121a1348860c3f4b17d2d87d0db1d377ec64489af633a1c5

Aliases

arxiv: 1108.3125 · arxiv_version: 1108.3125v1 · doi: 10.48550/arxiv.1108.3125 · pith_short_12: PQYMAVCVK4WS · pith_short_16: PQYMAVCVK4WSCEQ2 · pith_short_8: PQYMAVCV

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/PQYMAVCVK4WSCEQ2CNEIMDB7JM \
  | 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: 7c30c05455572d21121a1348860c3f4b17d2d87d0db1d377ec64489af633a1c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ecb31442929bd440eab97f5c91be48ef8a604e2c40fa6c230549b8bdb97d2d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2011-08-16T00:23:42Z",
    "title_canon_sha256": "48a9f89e7c6f9ae555aae4023a018cf63453d21a23d886183fab8f6e0f4616ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3125",
    "kind": "arxiv",
    "version": 1
  }
}