Pith Number

pith:Y7Z7YO3B

pith:2010:Y7Z7YO3BEOZ3T6M2YNKKSGLL7G

not attested not anchored not stored refs pending

REx: An Efficient Rule Generator

S. M. Kamruzzaman

arxiv:1009.4988 v1 · 2010-09-25 · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y7Z7YO3BEOZ3T6M2YNKKSGLL7G}

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	2026-05-18T04:40:19.514694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7f3fc3b6123b3b9f99ac354a9196bf988842b27239ee4c4b3ab7601af49d40f

Aliases

arxiv: 1009.4988 · arxiv_version: 1009.4988v1 · doi: 10.48550/arxiv.1009.4988 · pith_short_12: Y7Z7YO3BEOZ3 · pith_short_16: Y7Z7YO3BEOZ3T6M2 · pith_short_8: Y7Z7YO3B

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/Y7Z7YO3BEOZ3T6M2YNKKSGLL7G \
  | 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: c7f3fc3b6123b3b9f99ac354a9196bf988842b27239ee4c4b3ab7601af49d40f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "961917161e147e280382fd7b36221de6e25d28ce1a9c1ac41ea13db9b59a1770",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2010-09-25T07:33:44Z",
    "title_canon_sha256": "fd2e73101057f5973102eb003da19c21cb440a7cb3d419637fd7f3e09c220efb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4988",
    "kind": "arxiv",
    "version": 1
  }
}