Pith Number

pith:66GIU4DS

pith:2011:66GIU4DSHKFT2444ZTL27WGARS

not attested not anchored not stored refs pending

Ground Metric Learning

David Avis, Marco Cuturi

arxiv:1110.2306 v1 · 2011-10-11 · stat.ML · cs.CV · 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{66GIU4DSHKFT2444ZTL27WGARS}

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	2026-05-18T02:55:39.519863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f78c8a70723a8b3d739cccd7afd8c08cbcfba210f768952049d82639552f601e

Aliases

arxiv: 1110.2306 · arxiv_version: 1110.2306v1 · doi: 10.48550/arxiv.1110.2306 · pith_short_12: 66GIU4DSHKFT · pith_short_16: 66GIU4DSHKFT2444 · pith_short_8: 66GIU4DS

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/66GIU4DSHKFT2444ZTL27WGARS \
  | 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: f78c8a70723a8b3d739cccd7afd8c08cbcfba210f768952049d82639552f601e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f87dd40b22bf408443bb768fea9e4a974fd9db9fb0ee795593d2243fc7b07e4",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2011-10-11T09:04:56Z",
    "title_canon_sha256": "0caeedc0a18bfc26e0d9c27b9e8c911bf83b570ac5c3400ca256b5e8c6461ae2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.2306",
    "kind": "arxiv",
    "version": 1
  }
}