Pith Number

pith:FEL2Q62Q

pith:2019:FEL2Q62QAAXRUUPDKF3IIBCDRD

not attested not anchored not stored refs pending

Training with the Invisibles: Obfuscating Images to Share Safely for Learning Visual Recognition Models

Dongmin Kang, Jonghyun Choi, Kari Pulli, Tae-Hoon Kim

arxiv:1901.00098 v2 · 2019-01-01 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FEL2Q62QAAXRUUPDKF3IIBCDRD}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:42:48.584508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2917a87b50002f1a51e3517684044388f529919d6c2aa3a143887be282651dc4

Aliases

arxiv: 1901.00098 · arxiv_version: 1901.00098v2 · doi: 10.48550/arxiv.1901.00098 · pith_short_12: FEL2Q62QAAXR · pith_short_16: FEL2Q62QAAXRUUPD · pith_short_8: FEL2Q62Q

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/FEL2Q62QAAXRUUPDKF3IIBCDRD \
  | 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: 2917a87b50002f1a51e3517684044388f529919d6c2aa3a143887be282651dc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17688bd785962018f326a55c95a7dd30285eb57a686a5085ff90d682ce6f2ac1",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-01-01T05:39:05Z",
    "title_canon_sha256": "c3195277f390f5629fe40d1433356b2c0ab84db6862883297cdc9a302901f764"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.00098",
    "kind": "arxiv",
    "version": 2
  }
}