Pith Number

pith:R2Z75YZF

pith:2015:R2Z75YZF7VAUNAYSR4EM7DKXER

not attested not anchored not stored refs pending

Large-Scale Analysis of the Accuracy of the Journal Classification Systems of Web of Science and Scopus

Ludo Waltman, Qi Wang

arxiv:1511.00735 v2 · 2015-11-02 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R2Z75YZF7VAUNAYSR4EM7DKXER}

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	2026-05-18T01:22:05.775071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8eb3fee325fd414683128f08cf8d57245eee1cc3aad5063e833060eafaa18f6c

Aliases

arxiv: 1511.00735 · arxiv_version: 1511.00735v2 · doi: 10.48550/arxiv.1511.00735 · pith_short_12: R2Z75YZF7VAU · pith_short_16: R2Z75YZF7VAUNAYS · pith_short_8: R2Z75YZF

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/R2Z75YZF7VAUNAYSR4EM7DKXER \
  | 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: 8eb3fee325fd414683128f08cf8d57245eee1cc3aad5063e833060eafaa18f6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbe08b9777cd8b8993634edbb4e4b702fbf996ea60fd50a0853fddfb120e904d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2015-11-02T22:55:50Z",
    "title_canon_sha256": "086b8ef87bbf701677f2127cb87fd3f9fb39fb291a976b8589c0fa641482974e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.00735",
    "kind": "arxiv",
    "version": 2
  }
}