Pith Number

pith:OGXIAPQC

pith:2012:OGXIAPQCPDRNU2ESOFEHNLE5WJ

not attested not anchored not stored refs pending

Rewriting and narrowing for constructor systems with call-time choice semantics

Enrique Martin-Martin, Francisco J. L\'opez-Fraguas, Jaime S\'anchez-Hern\'andez, Juan Rodr\'iguez-Hortal\'a

arxiv:1209.2617 v2 · 2012-09-12 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OGXIAPQCPDRNU2ESOFEHNLE5WJ}

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	2026-05-18T03:43:39.851399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71ae803e0278e2da6892714876ac9db25f70d0ffe46e4ad2d1ec7eedb618baff

Aliases

arxiv: 1209.2617 · arxiv_version: 1209.2617v2 · doi: 10.48550/arxiv.1209.2617 · pith_short_12: OGXIAPQCPDRN · pith_short_16: OGXIAPQCPDRNU2ES · pith_short_8: OGXIAPQC

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/OGXIAPQCPDRNU2ESOFEHNLE5WJ \
  | 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: 71ae803e0278e2da6892714876ac9db25f70d0ffe46e4ad2d1ec7eedb618baff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebe580021342b4072940f1036730aa9210a2c94f7df25ac660cf99f3e2ba1061",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2012-09-12T14:01:05Z",
    "title_canon_sha256": "82c7d050a5a3843b0ea14a81036305513beacac7c96abd3d0c3548ec237ab0e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.2617",
    "kind": "arxiv",
    "version": 2
  }
}