Pith Number

pith:I73FCOTU

pith:2019:I73FCOTUX4DEVZQLLNTQ2W4ONB

not attested not anchored not stored refs pending

On Finding Gray Pixels

Jarno Nikkanen, Jiri Matas, Joni-Kristian K\"am\"ar\"ainen, Yanlin Qian

arxiv:1901.03198 v3 · 2019-01-09 · 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{I73FCOTUX4DEVZQLLNTQ2W4ONB}

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	2026-05-17T23:47:12.173106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47f6513a74bf064ae60b5b670d5b8e6859c82ccdd164851d9aec2643127b06a0

Aliases

arxiv: 1901.03198 · arxiv_version: 1901.03198v3 · doi: 10.48550/arxiv.1901.03198 · pith_short_12: I73FCOTUX4DE · pith_short_16: I73FCOTUX4DEVZQL · pith_short_8: I73FCOTU

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/I73FCOTUX4DEVZQLLNTQ2W4ONB \
  | 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: 47f6513a74bf064ae60b5b670d5b8e6859c82ccdd164851d9aec2643127b06a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9a4d2af0a2da4b3719b1f344ea58b298663bf70994a2c455a4136e713e2872f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-01-09T13:44:13Z",
    "title_canon_sha256": "b728ad5712e85d72464623005a9dcc93f153c6fc2c655c118960cb53c501afab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03198",
    "kind": "arxiv",
    "version": 3
  }
}