Pith Number

pith:3Y2WQUJD

pith:2018:3Y2WQUJDPFVMTYJUEKGM7JZ4Z4

not attested not anchored not stored refs pending

Human Iris Recognition in Post-mortem Subjects: Study and Database

Adam Czajka, Mateusz Trokielewicz, Piotr Maciejewicz

arxiv:1809.00174 v1 · 2018-09-01 · 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{3Y2WQUJDPFVMTYJUEKGM7JZ4Z4}

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	2026-05-18T00:06:35.848538Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de35685123796ac9e134228ccfa73ccf0537daf8aca3fd69aefd43f258fe3906

Aliases

arxiv: 1809.00174 · arxiv_version: 1809.00174v1 · doi: 10.48550/arxiv.1809.00174 · pith_short_12: 3Y2WQUJDPFVM · pith_short_16: 3Y2WQUJDPFVMTYJU · pith_short_8: 3Y2WQUJD

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/3Y2WQUJDPFVMTYJUEKGM7JZ4Z4 \
  | 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: de35685123796ac9e134228ccfa73ccf0537daf8aca3fd69aefd43f258fe3906

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56e9483584201d2a050a1de3d383673e3dfa7a280fe8cd795de538e944b9f4c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-09-01T13:26:18Z",
    "title_canon_sha256": "d1680ca4a77c2d71cecb3ca5aed5d80b2ab76b7624a7b2f1ce2400b2cfc3631e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.00174",
    "kind": "arxiv",
    "version": 1
  }
}