Pith Number

pith:FUTNQEKT

pith:1997:FUTNQEKT2SMIUGRN5DPX5J24IE

not attested not anchored not stored refs pending

The Number of Planets Around Stars

Noam Soker (Univ. of Haifa)

arxiv:astro-ph/9706257 v1 · 1997-06-24 · 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{FUTNQEKT2SMIUGRN5DPX5J24IE}

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	2026-05-18T01:07:38.251687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d26d81153d4988a1a2de8df7ea75c41146f54f4ccd63b7d99cd4cece06ad38d

Aliases

arxiv: astro-ph/9706257 · arxiv_version: astro-ph/9706257v1 · doi: 10.48550/arxiv.astro-ph/9706257 · pith_short_12: FUTNQEKT2SMI · pith_short_16: FUTNQEKT2SMIUGRN · pith_short_8: FUTNQEKT

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/FUTNQEKT2SMIUGRN5DPX5J24IE \
  | 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: 2d26d81153d4988a1a2de8df7ea75c41146f54f4ccd63b7d99cd4cece06ad38d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0136101f0ab37e5db44bbc04cbd00d4fba03104738b7d3aa0f74daf0f71ce741",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-06-24T21:06:00Z",
    "title_canon_sha256": "9dee15db2b20a40065c8a79bd46b317016176a730dcf66bc34fde356cab03a53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9706257",
    "kind": "arxiv",
    "version": 1
  }
}