Pith Number

pith:Y77T5H57

pith:2015:Y77T5H57V4EKMNA423DENIGI5L

not attested not anchored not stored refs pending

Learning Local Invariant Mahalanobis Distances

Ethan Fetaya, Shimon Ullman

arxiv:1502.01176 v1 · 2015-02-04 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y77T5H57V4EKMNA423DENIGI5L}

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	2026-05-18T01:36:20.106728Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7ff3e9fbfaf08a6341cd6c646a0c8eaf32b513abeadd69974d202ee13e17202

Aliases

arxiv: 1502.01176 · arxiv_version: 1502.01176v1 · doi: 10.48550/arxiv.1502.01176 · pith_short_12: Y77T5H57V4EK · pith_short_16: Y77T5H57V4EKMNA4 · pith_short_8: Y77T5H57

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/Y77T5H57V4EKMNA423DENIGI5L \
  | 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: c7ff3e9fbfaf08a6341cd6c646a0c8eaf32b513abeadd69974d202ee13e17202

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9a3af2752e3c950f6a2ac71fc4bc6c9161afd784c8680743a9d4604db5ad556",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-02-04T12:27:04Z",
    "title_canon_sha256": "7bec23c42cf4d6f84298e4d5fde4dff94cca61303906d02af690e94e7c4a824f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01176",
    "kind": "arxiv",
    "version": 1
  }
}