Pith Number

pith:DUZ4OWJK

pith:2014:DUZ4OWJK4STH3H3JKWRYHYVS7Q

not attested not anchored not stored refs pending

The Information Service Evaluation (ISE) Model

Laura Schumann, Wolfgang G. Stock

arxiv:1407.4831 v1 · 2014-07-16 · cs.CY · 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{DUZ4OWJK4STH3H3JKWRYHYVS7Q}

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	2026-05-18T02:47:22.590846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d33c7592ae4a67d9f6955a383e2b2fc1de86f44c5846c8906c8f40f2bf2ab39

Aliases

arxiv: 1407.4831 · arxiv_version: 1407.4831v1 · doi: 10.48550/arxiv.1407.4831 · pith_short_12: DUZ4OWJK4STH · pith_short_16: DUZ4OWJK4STH3H3J · pith_short_8: DUZ4OWJK

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/DUZ4OWJK4STH3H3JKWRYHYVS7Q \
  | 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: 1d33c7592ae4a67d9f6955a383e2b2fc1de86f44c5846c8906c8f40f2bf2ab39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0462bb80b7936c18ed1d6df0ff5e386e1ac1974674ab5a92ed3eb2eaa673032",
    "cross_cats_sorted": [
      "cs.DB"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2014-07-16T18:29:21Z",
    "title_canon_sha256": "39a7967f50feaa4868ddc715044bc41db483b97acf0998faa37adbcb43c3d2e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.4831",
    "kind": "arxiv",
    "version": 1
  }
}