Pith Number

pith:QFH4FNNG

pith:2019:QFH4FNNGQS4NY3M4UQRNQD4RC4

not attested not anchored not stored refs pending

Optimization of surface flux transport models for the solar polar magnetic field

K. Petrovay, M. Talafha

arxiv:1909.06125 v2 · 2019-09-13 · 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{QFH4FNNGQS4NY3M4UQRNQD4RC4}

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	2026-07-05T00:26:41.509878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

814fc2b5a684b8dc6d9ca422d80f911724125cb9e0053dee7a30eb6ce48b99a8

Aliases

arxiv: 1909.06125 · arxiv_version: 1909.06125v2 · doi: 10.48550/arxiv.1909.06125 · pith_short_12: QFH4FNNGQS4N · pith_short_16: QFH4FNNGQS4NY3M4 · pith_short_8: QFH4FNNG

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/QFH4FNNGQS4NY3M4UQRNQD4RC4 \
  | 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: 814fc2b5a684b8dc6d9ca422d80f911724125cb9e0053dee7a30eb6ce48b99a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fce99f99e2522cbe0728051b8e808ed53e4215cc99d286aeb8d39f9a1852cc55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-09-13T10:15:30Z",
    "title_canon_sha256": "7df5f45cca60a7a7dadbf7a5b6bf08cc9bc5de30bb183e87d6a4a2e51ffbfa0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.06125",
    "kind": "arxiv",
    "version": 2
  }
}