Pith Number

pith:TW5KSFDV

pith:2013:TW5KSFDVFG3ICCCGLTHPF7ZVJK

not attested not anchored not stored refs pending

Machine learning on images using a string-distance

Joel Ratsaby, Uzi Chester

arxiv:1305.4204 v1 · 2013-05-17 · cs.LG · 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{TW5KSFDVFG3ICCCGLTHPF7ZVJK}

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	2026-05-18T03:25:24.578547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9dbaa9147529b68108465ccef2ff354a8f9270d13c73519c264fc8a317eed9b0

Aliases

arxiv: 1305.4204 · arxiv_version: 1305.4204v1 · doi: 10.48550/arxiv.1305.4204 · pith_short_12: TW5KSFDVFG3I · pith_short_16: TW5KSFDVFG3ICCCG · pith_short_8: TW5KSFDV

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/TW5KSFDVFG3ICCCGLTHPF7ZVJK \
  | 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: 9dbaa9147529b68108465ccef2ff354a8f9270d13c73519c264fc8a317eed9b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "162fa572af2f388df5627d6f7cb1b23282a9b33c39e22c7c26a2887bd04b5919",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-05-17T22:40:14Z",
    "title_canon_sha256": "808f7dad6f617cc47dafb29dfb7d2597a99f2dc291778da6ca62f22dfd700b51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4204",
    "kind": "arxiv",
    "version": 1
  }
}