Pith Number

pith:PHX57RGM

pith:1998:PHX57RGMITPW33JOXDYF6KDAMM

not attested not anchored not stored refs pending

Photometric stellar variation due to extra-solar comets

A. Lecavelier des Etangs, A. Vidal-Madjar, R. Ferlet

arxiv:astro-ph/9812381 v1 · 1998-12-21 · 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{PHX57RGMITPW33JOXDYF6KDAMM}

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	2026-07-04T14:16:27.216728Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79efdfc4cc44df6ded2eb8f05f28606313c69a097cafd7cfd4db0d445cbde807

Aliases

arxiv: astro-ph/9812381 · arxiv_version: astro-ph/9812381v1 · doi: 10.48550/arxiv.astro-ph/9812381 · pith_short_12: PHX57RGMITPW · pith_short_16: PHX57RGMITPW33JO · pith_short_8: PHX57RGM

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/PHX57RGMITPW33JOXDYF6KDAMM \
  | 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: 79efdfc4cc44df6ded2eb8f05f28606313c69a097cafd7cfd4db0d445cbde807

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f1b360b38d9c121b102ee039ab2dceea841d33afb3e43c39b211cc4c664867e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-12-21T10:02:54Z",
    "title_canon_sha256": "3eae6ec9403117fb65188e3ea2f0c42d723cfbc356ff1c7701671ada969eddbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9812381",
    "kind": "arxiv",
    "version": 1
  }
}