Pith Number

pith:QZPXRJXJ

pith:1999:QZPXRJXJ4OWRTCNM5JFPQ5RXEY

not attested not anchored not stored refs pending

A calibration of iota Pegasi system

Ch. Morel, G. Berthomieu (OCA, J. Provost, Nice France), P. Morel

arxiv:astro-ph/9912307 v1 · 1999-12-15 · 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{QZPXRJXJ4OWRTCNM5JFPQ5RXEY}

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	2026-05-18T01:07:35.706652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

865f78a6e9e3ad1989acea4af87637261ea7400bfc687dc57622343b842a6bfd

Aliases

arxiv: astro-ph/9912307 · arxiv_version: astro-ph/9912307v1 · doi: 10.48550/arxiv.astro-ph/9912307 · pith_short_12: QZPXRJXJ4OWR · pith_short_16: QZPXRJXJ4OWRTCNM · pith_short_8: QZPXRJXJ

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/QZPXRJXJ4OWRTCNM5JFPQ5RXEY \
  | 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: 865f78a6e9e3ad1989acea4af87637261ea7400bfc687dc57622343b842a6bfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a53233a345d5794bbc075907751436df9a11f28ad54d8873228ee74f39da31d9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-12-15T13:11:41Z",
    "title_canon_sha256": "ea3211aecebb17c9f48c11a133e9fb69ee18f1a169f7dfe4f2128d068f4398f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9912307",
    "kind": "arxiv",
    "version": 1
  }
}