Pith Number

pith:4CQF46V7

pith:2020:4CQF46V7B6DBHTXW3MIKUF6HCR

not attested not anchored not stored refs pending

Deep Learning for Free-Hand Sketch: A Survey

Liang Wang, Peng Xu, Qiyue Yin, Tao Xiang, Timothy M. Hospedales, Yi-Zhe Song

arxiv:2001.02600 v3 · 2020-01-08 · cs.CV · cs.GR · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4CQF46V7B6DBHTXW3MIKUF6HCR}

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	2026-07-05T03:52:53.341651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0a05e7abf0f8613cef6db10aa17c7145da17422122fc042942eca9e59895753

Aliases

arxiv: 2001.02600 · arxiv_version: 2001.02600v3 · doi: 10.48550/arxiv.2001.02600 · pith_short_12: 4CQF46V7B6DB · pith_short_16: 4CQF46V7B6DBHTXW · pith_short_8: 4CQF46V7

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/4CQF46V7B6DBHTXW3MIKUF6HCR \
  | 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: e0a05e7abf0f8613cef6db10aa17c7145da17422122fc042942eca9e59895753

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49ea6acb40ee4009dbe1e35727e540d32da7fbcceacf80f72402a09f1faf0843",
    "cross_cats_sorted": [
      "cs.GR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-01-08T16:23:56Z",
    "title_canon_sha256": "8f44decfc67e3e6525af846c78feecefa1cfba1453cd76d1d50b8da3273f93c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.02600",
    "kind": "arxiv",
    "version": 3
  }
}