Pith Number

pith:Q2SYSFDF

pith:2019:Q2SYSFDFYXFFAMGAHFBXDCLCAF

not attested not anchored not stored refs pending

Pattern Spotting in Historical Documents Using Convolutional Models

Caroline Petitjean, Ignacio \'Ubeda, Jose M. Saavedra, Laurent Heutte, St\'ephane Nicolas

arxiv:1906.08580 v1 · 2019-06-20 · 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{Q2SYSFDFYXFFAMGAHFBXDCLCAF}

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	2026-05-17T23:42:52.028633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86a5891465c5ca5030c039437189620151ef3932543c4b81d258eb84b26f94e0

Aliases

arxiv: 1906.08580 · arxiv_version: 1906.08580v1 · doi: 10.48550/arxiv.1906.08580 · pith_short_12: Q2SYSFDFYXFF · pith_short_16: Q2SYSFDFYXFFAMGA · pith_short_8: Q2SYSFDF

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/Q2SYSFDFYXFFAMGAHFBXDCLCAF \
  | 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: 86a5891465c5ca5030c039437189620151ef3932543c4b81d258eb84b26f94e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e101e0b0edbd25e9d8f37263b3863d4830e6bed726e1ad4db33bc83729e082a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-06-20T12:39:35Z",
    "title_canon_sha256": "f7b8ed1b54001ecc54369c0ecb6d60580d391a1b62cfbe33be229d88c5ae1ec7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.08580",
    "kind": "arxiv",
    "version": 1
  }
}