Pith Number

pith:PJ5T4W5Z

pith:2018:PJ5T4W5ZCHM5YRA2FKKLBKFOHH

not attested not anchored not stored refs pending

Metric Learning with Dynamically Generated Pairwise Constraints for Ear Recognition

Faqiang Wang, Hongzhi Zhang, Ibrahim Omara, Wangmeng Zuo

arxiv:1803.09630 v1 · 2018-03-26 · 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{PJ5T4W5ZCHM5YRA2FKKLBKFOHH}

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	2026-05-18T00:20:10.875785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a7b3e5bb911d9dc441a2a94b0a8ae39f9ef2e3014ec39ef3d323f30dd0f9877

Aliases

arxiv: 1803.09630 · arxiv_version: 1803.09630v1 · doi: 10.48550/arxiv.1803.09630 · pith_short_12: PJ5T4W5ZCHM5 · pith_short_16: PJ5T4W5ZCHM5YRA2 · pith_short_8: PJ5T4W5Z

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/PJ5T4W5ZCHM5YRA2FKKLBKFOHH \
  | 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: 7a7b3e5bb911d9dc441a2a94b0a8ae39f9ef2e3014ec39ef3d323f30dd0f9877

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f20d5e68d7a0c38c4fee8df293edce5eebb684775ad9e98d4686d4c289f63ad",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-03-26T14:45:36Z",
    "title_canon_sha256": "bfe7a74619d1b81420eb9dde0e18de7a42273dc493139171dac092084e1c66dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.09630",
    "kind": "arxiv",
    "version": 1
  }
}