Pith Number

pith:D7I4RZ6J

pith:2016:D7I4RZ6J33FK6LH2XNAARPJ7VO

not attested not anchored not stored refs pending

Algorithms for item categorization based on ordinal ranking data

Josh Girson, Shuchin Aeron

arxiv:1609.09544 v1 · 2016-09-29 · cs.LG · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D7I4RZ6J33FK6LH2XNAARPJ7VO}

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	2026-05-18T01:03:35.775006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fd1c8e7c9decaaf2cfabb4008bd3faba46a4806551e627d72d4217e2c5b8ce1

Aliases

arxiv: 1609.09544 · arxiv_version: 1609.09544v1 · doi: 10.48550/arxiv.1609.09544 · pith_short_12: D7I4RZ6J33FK · pith_short_16: D7I4RZ6J33FK6LH2 · pith_short_8: D7I4RZ6J

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/D7I4RZ6J33FK6LH2XNAARPJ7VO \
  | 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: 1fd1c8e7c9decaaf2cfabb4008bd3faba46a4806551e627d72d4217e2c5b8ce1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b963856cf452003a7f7121a776ca3a21f3375765e1dcbea14823efd8edb9335c",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-09-29T22:59:45Z",
    "title_canon_sha256": "c64e33cc98f4635c0400be8005e2698fd94f55678e5b2494301a11a80c0b9e90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.09544",
    "kind": "arxiv",
    "version": 1
  }
}