Pith Number

pith:CJUFPENC

pith:2017:CJUFPENCOQSOTCC6FXSP5OANQE

not attested not anchored not stored refs pending

The HASYv2 dataset

Martin Thoma

arxiv:1701.08380 v1 · 2017-01-29 · 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{CJUFPENCOQSOTCC6FXSP5OANQE}

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	2026-05-18T00:51:54.329413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12685791a27424e9885e2de4feb80d810b51f00a771c4fc665008990f3af00b2

Aliases

arxiv: 1701.08380 · arxiv_version: 1701.08380v1 · doi: 10.48550/arxiv.1701.08380 · pith_short_12: CJUFPENCOQSO · pith_short_16: CJUFPENCOQSOTCC6 · pith_short_8: CJUFPENC

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/CJUFPENCOQSOTCC6FXSP5OANQE \
  | 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: 12685791a27424e9885e2de4feb80d810b51f00a771c4fc665008990f3af00b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b800e47808584d0a17c19725c8ceff24bf24de46f3883d51d6bae605e4fbcb6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-01-29T13:42:14Z",
    "title_canon_sha256": "3d016fbfb46bd2f979c0513b2ca2e582ecf9ef4099b1cfa9bbf855a894d31bbd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.08380",
    "kind": "arxiv",
    "version": 1
  }
}