Pith Number

pith:6FNUYR7T

pith:1999:6FNUYR7TUSHYAMPH3YG7QAOKCE

not attested not anchored not stored refs pending

The dust content of planetary nebulae: a reappraisal

(2) NCAC, France, G. Stasinska (1), Meudon, Poland), R. Szczerba (2) ((1) DAEC, Torun

arxiv:astro-ph/9911006 v1 · 1999-11-02 · 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{6FNUYR7TUSHYAMPH3YG7QAOKCE}

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

Infrared properties of Planetary Nebulae with PG1159 central stars

Receipt and verification

First computed	2026-07-04T15:51:15.487181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f15b4c47f3a48f8031e7de0df801ca110a1f2e0b9778a65d7262ef5db3b60875

Aliases

arxiv: astro-ph/9911006 · arxiv_version: astro-ph/9911006v1 · doi: 10.48550/arxiv.astro-ph/9911006 · pith_short_12: 6FNUYR7TUSHY · pith_short_16: 6FNUYR7TUSHYAMPH · pith_short_8: 6FNUYR7T

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/6FNUYR7TUSHYAMPH3YG7QAOKCE \
  | 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: f15b4c47f3a48f8031e7de0df801ca110a1f2e0b9778a65d7262ef5db3b60875

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e954a40959b5738406279a1ca55af7c45a06f086c7f86d4d65b1d16664b2b66",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-02T10:41:57Z",
    "title_canon_sha256": "f76e72e1d3e809c0a3c3e56834b4bed76adea64bef90406f13f023794829b4c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911006",
    "kind": "arxiv",
    "version": 1
  }
}