Pith Number

pith:TFZJSWIT

pith:2012:TFZJSWITQGBHK6NDRZVMBI6HCY

not attested not anchored not stored refs pending

Sketch Recognition using Domain Classification

Tanupriya Choudhury, T. V. Prasad, Vasudha Vashisht

arxiv:1211.2742 v1 · 2012-11-12 · cs.CV · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TFZJSWITQGBHK6NDRZVMBI6HCY}

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	2026-05-18T03:41:01.939741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

997299591381827579a38e6ac0a3c7160efcd6bd29dea3a2c2a5a6de337c03ae

Aliases

arxiv: 1211.2742 · arxiv_version: 1211.2742v1 · doi: 10.48550/arxiv.1211.2742 · pith_short_12: TFZJSWITQGBH · pith_short_16: TFZJSWITQGBHK6ND · pith_short_8: TFZJSWIT

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/TFZJSWITQGBHK6NDRZVMBI6HCY \
  | 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: 997299591381827579a38e6ac0a3c7160efcd6bd29dea3a2c2a5a6de337c03ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee4ccaba5009b63120f906d16ef098623d42ddad7dbe98b51da5f81bf7d27a7c",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2012-11-12T19:18:28Z",
    "title_canon_sha256": "7c32e83aa89bc1d768188788731e8a81c4dd79c54706d38d0aaa746f3d4a383d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2742",
    "kind": "arxiv",
    "version": 1
  }
}