Pith Number

pith:OSJ7TQ4U

pith:1998:OSJ7TQ4UQO5S7FWF5L5TJULMDK

not attested not anchored not stored refs pending

Fast maximum entropy Doppler mapping

H.C. Spruit

arxiv:astro-ph/9806141 v1 · 1998-06-10 · 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{OSJ7TQ4UQO5S7FWF5L5TJULMDK}

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.

Cited by

1 paper in Pith

Fast optical spectroscopic observations of PSR J1023+0038 over one orbital period

Receipt and verification

First computed	2026-07-04T14:15:51.729300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7493f9c39483bb2f96c5eafb34d16c1a8cf7a8cdeec07b54abe42a567ab2872d

Aliases

arxiv: astro-ph/9806141 · arxiv_version: astro-ph/9806141v1 · doi: 10.48550/arxiv.astro-ph/9806141 · pith_short_12: OSJ7TQ4UQO5S · pith_short_16: OSJ7TQ4UQO5S7FWF · pith_short_8: OSJ7TQ4U

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/OSJ7TQ4UQO5S7FWF5L5TJULMDK \
  | 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: 7493f9c39483bb2f96c5eafb34d16c1a8cf7a8cdeec07b54abe42a567ab2872d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77f5b7b22872c53769f3262fb0eb15a1a93aab1a51e02ebd0513369290571bdf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-06-10T12:15:14Z",
    "title_canon_sha256": "b1a63503987fbf5de80df5a9233896db8006aaebe12781df596328f6e321ef5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9806141",
    "kind": "arxiv",
    "version": 1
  }
}