Pith Number

pith:XN7ZGDW3

pith:2008:XN7ZGDW3RSACXGEN4LYJMQKWEE

not attested not anchored not stored refs pending

Ensuring Query Compatibility with Evolving XML Schemas

Nabil Laya\"ida, Pierre Genev\`es, Vincent Quint

arxiv:0811.4324 v1 · 2008-11-26 · cs.PL · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XN7ZGDW3RSACXGEN4LYJMQKWEE}

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	2026-07-04T15:32:44.323774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb7f930edb8c802b988de2f096415621374982949af552476b862a58d035f001

Aliases

arxiv: 0811.4324 · arxiv_version: 0811.4324v1 · doi: 10.48550/arxiv.0811.4324 · pith_short_12: XN7ZGDW3RSAC · pith_short_16: XN7ZGDW3RSACXGEN · pith_short_8: XN7ZGDW3

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/XN7ZGDW3RSACXGEN4LYJMQKWEE \
  | 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: bb7f930edb8c802b988de2f096415621374982949af552476b862a58d035f001

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68c52dea3e9331132277520aee9ccf8ea922da40b309834359e11ab1c8430850",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2008-11-26T14:37:01Z",
    "title_canon_sha256": "782817aa3eefcf1d7ebf0c48397c31cf2237576d32d29b0985dd066883b9568e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.4324",
    "kind": "arxiv",
    "version": 1
  }
}