Pith Number

pith:R3NGY2TA

pith:2021:R3NGY2TAZBI5BMR75SIAPLCTBD

not attested not anchored not stored refs pending

Learning Meta Pattern for Face Anti-Spoofing

Alex Chichung Kot, Haoliang Li, Renjie Wan, Rizhao Cai, Yongjian Hu, Zhi Li

arxiv:2110.06753 v2 · 2021-10-13 · cs.CV · cs.MM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R3NGY2TAZBI5BMR75SIAPLCTBD}

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	2026-07-05T04:23:38.373076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8eda6c6a60c851d0b23fec9007ac5308d2ece4763f2ea845a07613200d9c0258

Aliases

arxiv: 2110.06753 · arxiv_version: 2110.06753v2 · doi: 10.48550/arxiv.2110.06753 · pith_short_12: R3NGY2TAZBI5 · pith_short_16: R3NGY2TAZBI5BMR7 · pith_short_8: R3NGY2TA

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/R3NGY2TAZBI5BMR75SIAPLCTBD \
  | 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: 8eda6c6a60c851d0b23fec9007ac5308d2ece4763f2ea845a07613200d9c0258

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9da061ee6d7d6de3673eed3766b4d9138c16b0ec56fd95fce8515b2a778c2370",
    "cross_cats_sorted": [
      "cs.MM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-10-13T14:34:20Z",
    "title_canon_sha256": "84f66cbe5b131eb66535fafec037be04ca8186a20a0b9816022fa06980e8fe52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.06753",
    "kind": "arxiv",
    "version": 2
  }
}