Pith Number

pith:775RCELA

pith:2017:775RCELA3YF6YNLKVFKM5GBLAI

not attested not anchored not stored refs pending

Similarity Function Tracking using Pairwise Comparisons

Alfred O. Hero III, Brandon Oselio, Kristjan Greenewald, Stephen Kelley

arxiv:1701.02804 v1 · 2017-01-07 · stat.ML · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{775RCELA3YF6YNLKVFKM5GBLAI}

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	2026-05-18T00:33:21.781081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fffb111160de0bec356aa954ce982b020df05a78bcf19389f385dcd5923b7c8f

Aliases

arxiv: 1701.02804 · arxiv_version: 1701.02804v1 · doi: 10.48550/arxiv.1701.02804 · pith_short_12: 775RCELA3YF6 · pith_short_16: 775RCELA3YF6YNLK · pith_short_8: 775RCELA

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/775RCELA3YF6YNLKVFKM5GBLAI \
  | 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: fffb111160de0bec356aa954ce982b020df05a78bcf19389f385dcd5923b7c8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44e9cc4d8c6afe9571eee6c72c75d4eb782452241f34a1c828e5909c2094a90e",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2017-01-07T03:44:54Z",
    "title_canon_sha256": "a2498ae6a453d4ef108c3e17a4f311dbf40cc7d6124fb9bf05855b16857d3702"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.02804",
    "kind": "arxiv",
    "version": 1
  }
}