Pith Number

pith:L2Z6DGJJ

pith:2015:L2Z6DGJJATFUNEKSPUTB5RDSYW

not attested not anchored not stored refs pending

Robust Scene Text Recognition Using Sparse Coding based Features

Da-Han Wang, David Zhang, Dong Zhang, Hanzi Wang, Jonathan Li

arxiv:1512.08669 v1 · 2015-12-29 · cs.CV

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

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	2026-05-18T01:23:35.154719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5eb3e1992904cb4691527d261ec472c5bfeb08d61fcf8181123da3b60fa3696a

Aliases

arxiv: 1512.08669 · arxiv_version: 1512.08669v1 · doi: 10.48550/arxiv.1512.08669 · pith_short_12: L2Z6DGJJATFU · pith_short_16: L2Z6DGJJATFUNEKS · pith_short_8: L2Z6DGJJ

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/L2Z6DGJJATFUNEKSPUTB5RDSYW \
  | 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: 5eb3e1992904cb4691527d261ec472c5bfeb08d61fcf8181123da3b60fa3696a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "901623c227c02fd867bdb377caa927fc23679d62a8f3c1ddd28c92af5d8229b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-12-29T12:50:40Z",
    "title_canon_sha256": "a6df12cf8a4ed9dcf74947870833ff75da70683fc18c2b3f2bf8cffee56f7180"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.08669",
    "kind": "arxiv",
    "version": 1
  }
}