Pith Number

pith:OJ2DA7Z4

pith:2011:OJ2DA7Z42WZP37LETRFAMVH45L

not attested not anchored not stored refs pending

Design of Automatically Adaptable Web Wrappers

Emilio Ferrara, Robert Baumgartner

arxiv:1103.1254 v1 · 2011-03-07 · cs.AI · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OJ2DA7Z42WZP37LETRFAMVH45L}

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	2026-05-18T03:21:45.861763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7274307f3cd5b2fdfd649c4a0654fceaf7692f8e9617ce5e8f2e90bcd3f6f77b

Aliases

arxiv: 1103.1254 · arxiv_version: 1103.1254v1 · doi: 10.48550/arxiv.1103.1254 · pith_short_12: OJ2DA7Z42WZP · pith_short_16: OJ2DA7Z42WZP37LE · pith_short_8: OJ2DA7Z4

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/OJ2DA7Z42WZP37LETRFAMVH45L \
  | 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: 7274307f3cd5b2fdfd649c4a0654fceaf7692f8e9617ce5e8f2e90bcd3f6f77b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8565cb61b07497f25972e70b84f6b0ccdeed9c35c516b53faa20d296e9df3889",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2011-03-07T11:41:25Z",
    "title_canon_sha256": "c451bd4d726a0a1d5e2bf1dc5e23564f61f21f3145c7b98e8efc47dd6ce8ee6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1254",
    "kind": "arxiv",
    "version": 1
  }
}