Pith Number

pith:5B7TVM7V

pith:2010:5B7TVM7V2TVCGH4SGOR3WQ3J3H

not attested not anchored not stored refs pending

Yacc is dead

David Darais, Matthew Might

arxiv:1010.5023 v1 · 2010-10-24 · 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{5B7TVM7V2TVCGH4SGOR3WQ3J3H}

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	2026-05-18T02:23:38.690038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e87f3ab3f5d4ea231f9233a3bb4369d9f4c86d227bbe54519e94817d1a71afc5

Aliases

arxiv: 1010.5023 · arxiv_version: 1010.5023v1 · doi: 10.48550/arxiv.1010.5023 · pith_short_12: 5B7TVM7V2TVC · pith_short_16: 5B7TVM7V2TVCGH4S · pith_short_8: 5B7TVM7V

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/5B7TVM7V2TVCGH4SGOR3WQ3J3H \
  | 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: e87f3ab3f5d4ea231f9233a3bb4369d9f4c86d227bbe54519e94817d1a71afc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8e5fce4bdb7d7792e762095010e166447bb543434c3bc4eb58406f8bff837ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2010-10-24T23:12:28Z",
    "title_canon_sha256": "965b2eb2b2e32a30ce1fe656e27cb28ef48a634cce1a4dd24869334f8aea7949"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.5023",
    "kind": "arxiv",
    "version": 1
  }
}