Pith Number

pith:T4WGZ543

pith:2013:T4WGZ543KRD2AC25VRJ3DKQM4E

not attested not anchored not stored refs pending

Solar Magnetic Tracking. IV. The Death of Magnetic Features

Brian T. Welsch, Clare E. Parnell, Craig E. DeForest, Derek A. Lamb, Timothy A. Howard

arxiv:1307.4019 v1 · 2013-07-15 · 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{T4WGZ543KRD2AC25VRJ3DKQM4E}

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	2026-05-18T01:48:50.058551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f2c6cf79b5447a00b5dac53b1aa0ce127021998a5cf5ec851046cd4ebed9019

Aliases

arxiv: 1307.4019 · arxiv_version: 1307.4019v1 · doi: 10.48550/arxiv.1307.4019 · pith_short_12: T4WGZ543KRD2 · pith_short_16: T4WGZ543KRD2AC25 · pith_short_8: T4WGZ543

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/T4WGZ543KRD2AC25VRJ3DKQM4E \
  | 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: 9f2c6cf79b5447a00b5dac53b1aa0ce127021998a5cf5ec851046cd4ebed9019

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52ddd50ade02662638e1d8cf2919a51e4618fb361cb2701d78e035ff9936bf0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-07-15T17:05:02Z",
    "title_canon_sha256": "25747f9f7fb6fb53f28f502927b610166e2ed761cdf5d4ae0223d901bdc614ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4019",
    "kind": "arxiv",
    "version": 1
  }
}