Pith Number

pith:IEECSWPD

pith:2012:IEECSWPDV2M6XYNMPNRJCQHFON

not attested not anchored not stored refs pending

Ranked Document Retrieval in (Almost) No Space

Ana Cerdeira-Pena, Gonzalo Navarro, Nieves R. Brisaboa, Oscar Pedreira

arxiv:1207.5425 v1 · 2012-07-23 · cs.IR · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IEECSWPDV2M6XYNMPNRJCQHFON}

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	2026-05-18T02:21:08.082443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41082959e3ae99ebe1ac7b629140e57357cfb5ffd50a44bf402f27d998dcb108

Aliases

arxiv: 1207.5425 · arxiv_version: 1207.5425v1 · doi: 10.48550/arxiv.1207.5425 · pith_short_12: IEECSWPDV2M6 · pith_short_16: IEECSWPDV2M6XYNM · pith_short_8: IEECSWPD

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/IEECSWPDV2M6XYNMPNRJCQHFON \
  | 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: 41082959e3ae99ebe1ac7b629140e57357cfb5ffd50a44bf402f27d998dcb108

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcc97c7edea6c8389dc38abdcf75e12a358411562dfd35dd2fef85de30a719e3",
    "cross_cats_sorted": [
      "cs.DB"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2012-07-23T15:34:39Z",
    "title_canon_sha256": "1ed957536352ee39dc6b92ab3d43fcbf0424f579c798f2f07ab41f3e84ccaad0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5425",
    "kind": "arxiv",
    "version": 1
  }
}