Pith Number

pith:MV7FT4HP

pith:2017:MV7FT4HPGJ4XRJE66ZBIGVGD3F

not attested not anchored not stored refs pending

Observations of Running Penumbral Waves emerging in a Sunspot

Jiangtao Su, Jie Chen, Robert Erd\'elyi, T.G. Priya, Wenda Cao, Xinjie Mao, Yuanyong Deng

arxiv:1711.07145 v1 · 2017-11-20 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MV7FT4HPGJ4XRJE66ZBIGVGD3F}

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	2026-05-18T00:26:23.882058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

657e59f0ef327978a49ef6428354c3d96beeb328eddfb773453981dac8dde386

Aliases

arxiv: 1711.07145 · arxiv_version: 1711.07145v1 · doi: 10.48550/arxiv.1711.07145 · pith_short_12: MV7FT4HPGJ4X · pith_short_16: MV7FT4HPGJ4XRJE6 · pith_short_8: MV7FT4HP

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/MV7FT4HPGJ4XRJE66ZBIGVGD3F \
  | 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: 657e59f0ef327978a49ef6428354c3d96beeb328eddfb773453981dac8dde386

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "baf31fe1f3f8111157e8a98e0e7166eae9e64aedf317535ff4bf0ac9b3362e98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-11-20T05:03:05Z",
    "title_canon_sha256": "b06adf737a1dcddde3d30bbead21ca0831fbe06742967b30c214997f293a2752"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07145",
    "kind": "arxiv",
    "version": 1
  }
}