Pith Number

pith:NNHBBOZH

pith:2018:NNHBBOZHN6VRQXN4FND5UMEYBO

not attested not anchored not stored refs pending

Improving the Accuracy of Magnetic Field Tracing by Velocity Gradients: Principal Component Analysis

A. Lazarian, Ka Ho Yuen, Yue Hu

arxiv:1802.08772 v4 · 2018-02-24 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NNHBBOZHN6VRQXN4FND5UMEYBO}

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	2026-05-18T00:10:02.739222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b4e10bb276fab185dbc2b47da30980bb83c8ade6bc083d0142782d155656908

Aliases

arxiv: 1802.08772 · arxiv_version: 1802.08772v4 · doi: 10.48550/arxiv.1802.08772 · pith_short_12: NNHBBOZHN6VR · pith_short_16: NNHBBOZHN6VRQXN4 · pith_short_8: NNHBBOZH

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/NNHBBOZHN6VRQXN4FND5UMEYBO \
  | 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: 6b4e10bb276fab185dbc2b47da30980bb83c8ade6bc083d0142782d155656908

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e07b321900d8091d283802d2f9a1302998082b26ae1a21542bcd582d111a7f8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-24T00:33:58Z",
    "title_canon_sha256": "02b4b867d614bfd1a60746ef172687e4f51d9c67efb8490d541755b17d38ed0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08772",
    "kind": "arxiv",
    "version": 4
  }
}