Pith Number

pith:T5FMPVK2

pith:2021:T5FMPVK2DG7TROOMPNWZGU3VSG

not attested not anchored not stored refs pending

A functionality taxonomy for document search engines

Henderik A. Proper, Rik D.T. Janssen

arxiv:2105.12989 v1 · 2021-05-27 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T5FMPVK2DG7TROOMPNWZGU3VSG}

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.

Cited by

1 paper in Pith

Rank, Chunk and Expand: Lineage-Oriented Reasoning for Taxonomy Expansion

Receipt and verification

First computed	2026-07-05T02:43:56.078203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f4ac7d55a19bf38b9cc7b6d93537591a8e509bb6157c56f6b05a352d9aa6ec6

Aliases

arxiv: 2105.12989 · arxiv_version: 2105.12989v1 · doi: 10.48550/arxiv.2105.12989 · pith_short_12: T5FMPVK2DG7T · pith_short_16: T5FMPVK2DG7TROOM · pith_short_8: T5FMPVK2

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/T5FMPVK2DG7TROOMPNWZGU3VSG \
  | 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: 9f4ac7d55a19bf38b9cc7b6d93537591a8e509bb6157c56f6b05a352d9aa6ec6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c13baf66c12b480a9e79d5a28a958aabf02e24a177d70e267962e1e04f3f062",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-05-27T08:15:49Z",
    "title_canon_sha256": "3071d52d3f89c840d9c915e6638e65b4e843ebb453ab6230121e52e730ab3e54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.12989",
    "kind": "arxiv",
    "version": 1
  }
}