Pith Number

pith:HIZ2OR6T

pith:2020:HIZ2OR6TW44W5SF2FDPNXDWLKN

not attested not anchored not stored refs pending

Iris Liveness Detection Competition (LivDet-Iris) -- The 2020 Edition

Adam Czajka, Aidan Boyd, Amir Mohammadi, Arjan Kuijper, Arun Ross, Cunjian Chen, David Yambay, Fadi Boutros, Ganghee Jang, Joseph McGrath, Juan Tapia, Kevin Bowyer, Mateusz Trokielewicz, Meiling Fang, Naser Damer, Piotr Maciejewicz, Priyanka Das, Renu Sharma, Sandip Purnapatra, Sebastian Gonzalez, S\'ebastien Marcel, Stephanie Schuckers, Zhaoyuan Fang

arxiv:2009.00749 v1 · 2020-09-01 · 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{HIZ2OR6TW44W5SF2FDPNXDWLKN}

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	2026-07-05T01:32:26.624374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a33a747d3b7396ec8ba28dedb8ecb5367c2b61259d8e5d26cac26a78ab912a6

Aliases

arxiv: 2009.00749 · arxiv_version: 2009.00749v1 · doi: 10.48550/arxiv.2009.00749 · pith_short_12: HIZ2OR6TW44W · pith_short_16: HIZ2OR6TW44W5SF2 · pith_short_8: HIZ2OR6T

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/HIZ2OR6TW44W5SF2FDPNXDWLKN \
  | 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: 3a33a747d3b7396ec8ba28dedb8ecb5367c2b61259d8e5d26cac26a78ab912a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "462daa23810b2690539428ab4990ba7e4128f5ce1ba2d002a0f6ebaca1bd7f50",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-09-01T23:43:19Z",
    "title_canon_sha256": "5d1758e8382cefadcb500e307492b67a3be1402b3d28d98c09f335f2c92997bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.00749",
    "kind": "arxiv",
    "version": 1
  }
}