Pith Number

pith:33M5YCQD

pith:2013:33M5YCQD4IDR4Q27KWT2RKTAPO

not attested not anchored not stored refs pending

Calibrating 100 Years of Polar Faculae Measurements: Implications for the Evolution of the Heliospheric Magnetic Field

Andr\'es Mu\~noz-Jaramillo, Edward E. DeLuca, Jie Zhang, Jr., Neil R. Sheeley

arxiv:1303.0345 v1 · 2013-03-02 · 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{33M5YCQD4IDR4Q27KWT2RKTAPO}

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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	2026-05-18T03:31:56.427989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ded9dc0a03e2071e435f55a7a8aa607b8187da0f8e600a46207b8775664d9b73

Aliases

arxiv: 1303.0345 · arxiv_version: 1303.0345v1 · doi: 10.48550/arxiv.1303.0345 · pith_short_12: 33M5YCQD4IDR · pith_short_16: 33M5YCQD4IDR4Q27 · pith_short_8: 33M5YCQD

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/33M5YCQD4IDR4Q27KWT2RKTAPO \
  | 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: ded9dc0a03e2071e435f55a7a8aa607b8187da0f8e600a46207b8775664d9b73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "122ed81f2807c6b04951711efb0cd1c4ce9eca7f73e376fed405e20dc6d48d68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-03-02T03:47:50Z",
    "title_canon_sha256": "95a078c9b5b7b9411ab0b11c85e96388441e96725ba3b4b718e3292f313882a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0345",
    "kind": "arxiv",
    "version": 1
  }
}