Pith Number

pith:IKNRHZOH

pith:2020:IKNRHZOHOPWVUMMXBVQCOJSFKZ

not attested not anchored not stored refs pending

Real-Time Facial Expression Emoji Masking with Convolutional Neural Networks and Homography

Qinchen Wang, Sixuan Wu, Tingfeng Xia

arxiv:2012.13447 v1 · 2020-12-24 · 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{IKNRHZOHOPWVUMMXBVQCOJSFKZ}

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	2026-07-05T02:02:09.705672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

429b13e5c773ed5a31970d60272645567eac8ecec2554c3a1af3b3c33eda3d82

Aliases

arxiv: 2012.13447 · arxiv_version: 2012.13447v1 · doi: 10.48550/arxiv.2012.13447 · pith_short_12: IKNRHZOHOPWV · pith_short_16: IKNRHZOHOPWVUMMX · pith_short_8: IKNRHZOH

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/IKNRHZOHOPWVUMMXBVQCOJSFKZ \
  | 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: 429b13e5c773ed5a31970d60272645567eac8ecec2554c3a1af3b3c33eda3d82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "487788338c8cdf34b708fc1cd774b699cc2c9fd49cdaaca6396a76e31166b388",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-12-24T21:25:48Z",
    "title_canon_sha256": "7f59ebd0f185db5c6d5f57a54bac5e0302a0f0c6a1f060456c014aa9ef38ecaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.13447",
    "kind": "arxiv",
    "version": 1
  }
}