Pith Number

pith:YSPR3RQQ

pith:2021:YSPR3RQQZ2CCZ5EK65SSWZMDQE

not attested not anchored not stored refs pending

Danish Fungi 2020 -- Not Just Another Image Recognition Dataset

Jacob Heilmann-Clausen, Ji\v{r}\'i Matas, Luk\'a\v{s} Picek, Milan \v{S}ulc, Thomas L{\ae}ss{\o}e, Thomas S. Jeppesen, Tobias Fr{\o}slev

arxiv:2103.10107 v4 · 2021-03-18 · cs.CV · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YSPR3RQQZ2CCZ5EK65SSWZMDQE}

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	2026-07-05T04:30:37.359836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c49f1dc610ce842cf48af7652b65838114e716ee6a5129f720f64434da5c90c0

Aliases

arxiv: 2103.10107 · arxiv_version: 2103.10107v4 · doi: 10.48550/arxiv.2103.10107 · pith_short_12: YSPR3RQQZ2CC · pith_short_16: YSPR3RQQZ2CCZ5EK · pith_short_8: YSPR3RQQ

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/YSPR3RQQZ2CCZ5EK65SSWZMDQE \
  | 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: c49f1dc610ce842cf48af7652b65838114e716ee6a5129f720f64434da5c90c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a43895afd83e62b70d5d7b0e88141840d504d8ddd1aeb8e3dd8ea9c1531fbf5c",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-03-18T09:33:11Z",
    "title_canon_sha256": "2d67118d8cecc1192f55aa05d10eb2e8971e017eb8d58e1240cae6b9ba3d43bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.10107",
    "kind": "arxiv",
    "version": 4
  }
}