Pith Number

pith:AWNQOJF4

pith:2012:AWNQOJF4GN2NZVB6T4NBXHQ5FP

not attested not anchored not stored refs pending

Toward a New Protocol to Evaluate Recommender Systems

Eric Gaussier, Fabrice Cl\'erot, Fran\c{c}oise Fessant, Frank Meyer

arxiv:1209.1983 v1 · 2012-09-10 · cs.IR · cs.PF

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AWNQOJF4GN2NZVB6T4NBXHQ5FP}

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	2026-05-18T02:25:05.817869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

059b0724bc3374dcd43e9f1a1b9e1d2bc7b119f473814795649a2862658033e6

Aliases

arxiv: 1209.1983 · arxiv_version: 1209.1983v1 · doi: 10.48550/arxiv.1209.1983 · pith_short_12: AWNQOJF4GN2N · pith_short_16: AWNQOJF4GN2NZVB6 · pith_short_8: AWNQOJF4

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/AWNQOJF4GN2NZVB6T4NBXHQ5FP \
  | 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: 059b0724bc3374dcd43e9f1a1b9e1d2bc7b119f473814795649a2862658033e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d15d9ffa51532abcd650a2f718c62fa356b009d503bb49466d922e89a8a4a292",
    "cross_cats_sorted": [
      "cs.PF"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2012-09-10T13:27:23Z",
    "title_canon_sha256": "e6e5e2c23aed7c7c90f20b853375472dbaa46f33e23e9321cf3ae8ed9d9c793e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1983",
    "kind": "arxiv",
    "version": 1
  }
}