Pith Number

pith:NFHCLTHL

pith:2013:NFHCLTHL4MKKBO7XFLIS3KY5UY

not attested not anchored not stored refs pending

The dramatic change of the fossil magnetic field of HD 190073: evidence of the birth of the convective core in a Herbig star ?

C. Catala, C. Neiner, E. Alecian, J. Landstreet, O. Kochukhov, S. Mathis, the MiMeS Collaboration

arxiv:1301.1804 v1 · 2013-01-09 · 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{NFHCLTHL4MKKBO7XFLIS3KY5UY}

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	2026-05-18T01:52:14.559788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

694e25ccebe314a0bbf72ad12dab1da6094b4adb000526111aee9c2e63ad7f09

Aliases

arxiv: 1301.1804 · arxiv_version: 1301.1804v1 · doi: 10.48550/arxiv.1301.1804 · pith_short_12: NFHCLTHL4MKK · pith_short_16: NFHCLTHL4MKKBO7X · pith_short_8: NFHCLTHL

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/NFHCLTHL4MKKBO7XFLIS3KY5UY \
  | 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: 694e25ccebe314a0bbf72ad12dab1da6094b4adb000526111aee9c2e63ad7f09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b96067035c09782454c2d27c36458d1fdfcb9679269e534da3a18eb5b593330",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-01-09T10:37:24Z",
    "title_canon_sha256": "88823f82e8760ff33845cd4a46090c7a40d3306f09fe1f543941d8cd72c03b97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1804",
    "kind": "arxiv",
    "version": 1
  }
}