Pith Number

pith:WVTN4TBC

pith:2016:WVTN4TBCN4SQ3JDRU233RQWO6J

not attested not anchored not stored refs pending

Automatic Recognition of Sunspots in HSOS Full-Disk Solar Images

Cui Zhao, GangHua Lin, Xiao Yang, Yuanyong Deng

arxiv:1605.01552 v1 · 2016-05-05 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WVTN4TBCN4SQ3JDRU233RQWO6J}

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	2026-05-18T01:14:20.222845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b566de4c226f250da471a6b7b8c2cef276727248c6176db305822d3d826f5f4e

Aliases

arxiv: 1605.01552 · arxiv_version: 1605.01552v1 · doi: 10.48550/arxiv.1605.01552 · pith_short_12: WVTN4TBCN4SQ · pith_short_16: WVTN4TBCN4SQ3JDR · pith_short_8: WVTN4TBC

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/WVTN4TBCN4SQ3JDRU233RQWO6J \
  | 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: b566de4c226f250da471a6b7b8c2cef276727248c6176db305822d3d826f5f4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d8b0a0f517e449358f7b75785e13ab988aa494c1ed00e193d2454e7ca1e6232",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-05-05T11:17:19Z",
    "title_canon_sha256": "02fa88da6e395b9a531221e50491b67153fb317f230204f8052cdb5e8e14aba5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.01552",
    "kind": "arxiv",
    "version": 1
  }
}