Pith Number

pith:ITQNXS4A

pith:2019:ITQNXS4ALBA42TFUIKEQSELX32

not attested not anchored not stored refs pending

Fingerprints: Fixed Length Representation via Deep Networks and Domain Knowledge

Anil K. Jain, Joshua J. Engelsma, Kai Cao

arxiv:1904.01099 v1 · 2019-04-01 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ITQNXS4ALBA42TFUIKEQSELX32}

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	2026-05-17T23:49:37.865118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44e0dbcb805841cd4cb44289091177deb8bb58ad802aac8d2912f52e387c4ce4

Aliases

arxiv: 1904.01099 · arxiv_version: 1904.01099v1 · doi: 10.48550/arxiv.1904.01099 · pith_short_12: ITQNXS4ALBA4 · pith_short_16: ITQNXS4ALBA42TFU · pith_short_8: ITQNXS4A

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/ITQNXS4ALBA42TFUIKEQSELX32 \
  | 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: 44e0dbcb805841cd4cb44289091177deb8bb58ad802aac8d2912f52e387c4ce4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5ebfb8e19cf8ba7004e936fb54bc4480fe25843c6f0d3f2dcd046d8760427a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-01T20:41:43Z",
    "title_canon_sha256": "82f9cc398eb5a211214d824282acc78aa668d254f5fa8325278357056b702df0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01099",
    "kind": "arxiv",
    "version": 1
  }
}