Pith Number

pith:V25BHUOV

pith:2012:V25BHUOVFDILGSSAHK6PMC5UJV

not attested not anchored not stored refs pending

The Extended Solar Cycle Tracked High into the Corona

R.C. Altrock (2) ((1) National Solar Observatory, S.J. Tappin (1), USA), USA (2) Air Force Research Laboratory

arxiv:1209.2969 v1 · 2012-09-13 · 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{V25BHUOVFDILGSSAHK6PMC5UJV}

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	2026-05-18T03:32:59.871218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aeba13d1d528d0b34a403abcf60bb44d6051b9023054388c029bf1f643d98d7d

Aliases

arxiv: 1209.2969 · arxiv_version: 1209.2969v1 · doi: 10.48550/arxiv.1209.2969 · pith_short_12: V25BHUOVFDIL · pith_short_16: V25BHUOVFDILGSSA · pith_short_8: V25BHUOV

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/V25BHUOVFDILGSSAHK6PMC5UJV \
  | 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: aeba13d1d528d0b34a403abcf60bb44d6051b9023054388c029bf1f643d98d7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee26d74712547a1e5186364fad681e2bd3800ef04a4eee7b521d5bdf9b12528a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-09-13T17:30:30Z",
    "title_canon_sha256": "96e1adc04736fffc92a17c44504690257b251d818565abdd4db83d4012ad2676"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.2969",
    "kind": "arxiv",
    "version": 1
  }
}