Pith Number

pith:CCGIYFOE

pith:1996:CCGIYFOEIL746C6P5ZVU6WRJQV

not attested not anchored not stored refs pending

Planetary Nebulae as standard candles XI. Application to Spiral Galaxies

George Jacoby (NOAO), John Feldmeier (Penn State), (Penn State), Robin Ciardullo

arxiv:astro-ph/9611041 v1 · 1996-11-05 · 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{CCGIYFOEIL746C6P5ZVU6WRJQV}

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	2026-05-18T01:40:18.906472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

108c8c15c442ffcf0bcfee6b4f5a29856d6b462fcbb5ee97c01378e90837cb04

Aliases

arxiv: astro-ph/9611041 · arxiv_version: astro-ph/9611041v1 · doi: 10.48550/arxiv.astro-ph/9611041 · pith_short_12: CCGIYFOEIL74 · pith_short_16: CCGIYFOEIL746C6P · pith_short_8: CCGIYFOE

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/CCGIYFOEIL746C6P5ZVU6WRJQV \
  | 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: 108c8c15c442ffcf0bcfee6b4f5a29856d6b462fcbb5ee97c01378e90837cb04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a18676809d0caef92cf0773c8b5708fbe90f07c3b5de465ac1ace659f2bbbb3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-11-05T19:13:24Z",
    "title_canon_sha256": "6d1bfa2c8405049c50261447d7d937028133adf559d5d9f7e12531956489baf7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9611041",
    "kind": "arxiv",
    "version": 1
  }
}