Pith Number

pith:R5LSS7J7

pith:1998:R5LSS7J7EC2HCYHHMVFFEGGLDU

not attested not anchored not stored refs pending

On the use of nonlinear regularization in inverse method for the tachocline profile determination

G. Berthomieu, J. Provost, L. Blanc-F\'eraud, T. Corbard

arxiv:astro-ph/9806359 v1 · 1998-06-26 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R5LSS7J7EC2HCYHHMVFFEGGLDU}

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	2026-05-18T03:17:01.131153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f57297d3f20b47160e7654a5218cb1d24625ae50c64857e155bbe009906a74c

Aliases

arxiv: astro-ph/9806359 · arxiv_version: astro-ph/9806359v1 · doi: 10.48550/arxiv.astro-ph/9806359 · pith_short_12: R5LSS7J7EC2H · pith_short_16: R5LSS7J7EC2HCYHH · pith_short_8: R5LSS7J7

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/R5LSS7J7EC2HCYHHMVFFEGGLDU \
  | 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: 8f57297d3f20b47160e7654a5218cb1d24625ae50c64857e155bbe009906a74c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c4c8e52453807381e40c3ffd72546fc293f265f5859a138a8947447baf3af87",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-06-26T17:17:51Z",
    "title_canon_sha256": "452c26ba91a54efbb81b8c31153bfcf3134394efc704b09ca7850be0d3699ad4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9806359",
    "kind": "arxiv",
    "version": 1
  }
}