Pith Number

pith:XUCC36TV

pith:2012:XUCC36TV2CC43SXTRRYZSOLLQA

not attested not anchored not stored refs pending

Expressing Preferences using Preference Set Constraint Atoms

Alex Brik, Jeffrey B. Remmel

arxiv:1203.0587 v1 · 2012-03-02 · 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{XUCC36TV2CC43SXTRRYZSOLLQA}

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	2026-05-18T04:00:51.194364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd042dfa75d085cdcaf38c7199396b800b8d9452147d256c0bcf1de1d70bd12a

Aliases

arxiv: 1203.0587 · arxiv_version: 1203.0587v1 · doi: 10.48550/arxiv.1203.0587 · pith_short_12: XUCC36TV2CC4 · pith_short_16: XUCC36TV2CC43SXT · pith_short_8: XUCC36TV

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/XUCC36TV2CC43SXTRRYZSOLLQA \
  | 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: bd042dfa75d085cdcaf38c7199396b800b8d9452147d256c0bcf1de1d70bd12a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d92a5c5fcbb1435bf53b4c135f123f448448f7ade566ddd19b82b3cf6adae9b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2012-03-02T23:25:07Z",
    "title_canon_sha256": "fedb633dd6c380227abc244ec29d216d709f50f8af8e81437fe69fb2437da90b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.0587",
    "kind": "arxiv",
    "version": 1
  }
}