Pith Number

pith:DH3AZ57M

pith:2017:DH3AZ57MCJDM6CEOIDDGOPO4LA

not attested not anchored not stored refs pending

Handwritten character recognition using some (anti)-diagonal structural features

Jos\'e Manuel Casas, Manuel Ladra, Nick Inassaridze, Susana Ladra

arxiv:1707.08951 v3 · 2017-07-27 · 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{DH3AZ57MCJDM6CEOIDDGOPO4LA}

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	2026-05-18T00:23:21.219865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19f60cf7ec1246cf088e40c6673ddc581fa00e8c02b0f5393dca348bf88b8646

Aliases

arxiv: 1707.08951 · arxiv_version: 1707.08951v3 · doi: 10.48550/arxiv.1707.08951 · pith_short_12: DH3AZ57MCJDM · pith_short_16: DH3AZ57MCJDM6CEO · pith_short_8: DH3AZ57M

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/DH3AZ57MCJDM6CEOIDDGOPO4LA \
  | 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: 19f60cf7ec1246cf088e40c6673ddc581fa00e8c02b0f5393dca348bf88b8646

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ab351c86a8f23f0a5eaf5d74a1eb0b957717f990fe7e05185470c0ce7ad325b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-07-27T17:50:13Z",
    "title_canon_sha256": "676fe0aec420eccb623e2aa279bf8b839a09e475e4f257b7b8e6f146cf46899c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.08951",
    "kind": "arxiv",
    "version": 3
  }
}