Pith Number

pith:MMATG2UM

pith:2014:MMATG2UMHOIUV57EMO5RK5M4YY

not attested not anchored not stored refs pending

Cycle 23 Variation in Solar Flare Productivity

Hugh Hudson, Jim McTiernan, Lyndsay Fletcher

arxiv:1401.6474 v1 · 2014-01-24 · 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{MMATG2UMHOIUV57EMO5RK5M4YY}

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	2026-05-18T03:01:01.731735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6301336a8c3b914af7e463bb15759cc6144915e1537819eaff72f535da6055a5

Aliases

arxiv: 1401.6474 · arxiv_version: 1401.6474v1 · doi: 10.48550/arxiv.1401.6474 · pith_short_12: MMATG2UMHOIU · pith_short_16: MMATG2UMHOIUV57E · pith_short_8: MMATG2UM

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/MMATG2UMHOIUV57EMO5RK5M4YY \
  | 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: 6301336a8c3b914af7e463bb15759cc6144915e1537819eaff72f535da6055a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a02d940f6d66ca4c27fd75deb10fabcbd2af3d620439a9d5427a35e60fda1802",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-01-24T23:57:44Z",
    "title_canon_sha256": "ed4af2161f0b87c9e2d15df4f39027f4efd0ea88f894760f4069276db5f837db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.6474",
    "kind": "arxiv",
    "version": 1
  }
}