Pith Number

pith:HCM6D5ZK

pith:2012:HCM6D5ZKMCL7LH2J2XV4YAZRVE

not attested not anchored not stored refs pending

Solar and Stellar Activity: Diagnostics and Indices

Michael J. Thompson, Philip G. Judge

arxiv:1201.4625 v2 · 2012-01-23 · 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{HCM6D5ZKMCL7LH2J2XV4YAZRVE}

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	2026-05-18T01:58:43.708131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3899e1f72a6097f59f49d5ebcc0331a911a1a3aa1a42198a1b9ebc4e6fdf55d8

Aliases

arxiv: 1201.4625 · arxiv_version: 1201.4625v2 · doi: 10.48550/arxiv.1201.4625 · pith_short_12: HCM6D5ZKMCL7 · pith_short_16: HCM6D5ZKMCL7LH2J · pith_short_8: HCM6D5ZK

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/HCM6D5ZKMCL7LH2J2XV4YAZRVE \
  | 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: 3899e1f72a6097f59f49d5ebcc0331a911a1a3aa1a42198a1b9ebc4e6fdf55d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bbcff3b471c555cd9c454f21ee6c380f098bad957774d469b72a9bc41c84d9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-23T03:22:38Z",
    "title_canon_sha256": "b0a8855fddda6ec0803ba0a2924a7da6f89ed6247d1f4af9c2feb4cd8c6e2755"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4625",
    "kind": "arxiv",
    "version": 2
  }
}