Pith Number

pith:4KIZF27U

pith:2026:4KIZF27UDSFT2TJ7MGZM4GK7HS

not attested not anchored not stored refs pending

Chromospheric resonator model for sunspot revealed by multi-height observation of umbral wave

A.K. Srivastava, Ding Yuan, Kartika Sangal, Libo Fu, Song Feng, Yuandeng Shen

arxiv:2605.19472 v1 · 2026-05-19 · 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{4KIZF27UDSFT2TJ7MGZM4GK7HS}

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	2026-05-20T01:05:47.510194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e29192ebf41c8b3d4d3f61b2ce195f3cb8dc62889b274d6f3237a5f3f58c15cf

Aliases

arxiv: 2605.19472 · arxiv_version: 2605.19472v1 · doi: 10.48550/arxiv.2605.19472 · pith_short_12: 4KIZF27UDSFT · pith_short_16: 4KIZF27UDSFT2TJ7 · pith_short_8: 4KIZF27U

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/4KIZF27UDSFT2TJ7MGZM4GK7HS \
  | 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: e29192ebf41c8b3d4d3f61b2ce195f3cb8dc62889b274d6f3237a5f3f58c15cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f9cf15700931afd8b88a7387ac6cfc8647e4991dc7d4505ff96f7dc3dea2667",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-05-19T07:23:44Z",
    "title_canon_sha256": "48e44b2cdb5d0e67f87d525d969982d9473a5ba45cc12cdafc8e2a38aba8a2c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19472",
    "kind": "arxiv",
    "version": 1
  }
}