Pith Number

pith:UP57ITPR

pith:2018:UP57ITPR3RASN6FKADPUDHIEYF

not attested not anchored not stored refs pending

Open Source Dataset and Machine Learning Techniques for Automatic Recognition of Historical Graffiti

Nikita Gordienko, Oleg Alienin, Oleksandr Rokovyi, Peng Gang, Sergii Stirenko, Wei Zeng, Yuri Gordienko

arxiv:1808.10862 v1 · 2018-08-31 · cs.LG · cs.CV · cs.CY · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UP57ITPR3RASN6FKADPUDHIEYF}

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	2026-05-17T23:59:01.475236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3fbf44df1dc4126f8aa00df419d04c15c3c0e4c823c77ecff10602dca097edb

Aliases

arxiv: 1808.10862 · arxiv_version: 1808.10862v1 · doi: 10.48550/arxiv.1808.10862 · pith_short_12: UP57ITPR3RAS · pith_short_16: UP57ITPR3RASN6FK · pith_short_8: UP57ITPR

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/UP57ITPR3RASN6FKADPUDHIEYF \
  | 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: a3fbf44df1dc4126f8aa00df419d04c15c3c0e4c823c77ecff10602dca097edb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf3f44748a338b1bc77c83b8b2d285846fa2f4b53c94330439a8c1638989aee4",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.CY",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-08-31T17:43:21Z",
    "title_canon_sha256": "9af02335353eb93f5fd5bd9de49cb0a341c6e566fcc9504a2105f2b33bf68022"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10862",
    "kind": "arxiv",
    "version": 1
  }
}