Pith Number

pith:PC7CNK65

pith:1999:PC7CNK65OFS274P2LBAEEOFVH5

not attested not anchored not stored refs pending

The spectral evolution of post-AGB stars

L.B.F.M. Waters, P.A.M. van Hoof, R.D. Oudmaijer

arxiv:astro-ph/9906120 v1 · 1999-06-07 · 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{PC7CNK65OFS274P2LBAEEOFVH5}

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	2026-05-18T01:40:13.073027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78be26abdd7165aff1fa58404238b53f4f3890ea52c33275994ba5a13b18f69c

Aliases

arxiv: astro-ph/9906120 · arxiv_version: astro-ph/9906120v1 · doi: 10.48550/arxiv.astro-ph/9906120 · pith_short_12: PC7CNK65OFS2 · pith_short_16: PC7CNK65OFS274P2 · pith_short_8: PC7CNK65

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/PC7CNK65OFS274P2LBAEEOFVH5 \
  | 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: 78be26abdd7165aff1fa58404238b53f4f3890ea52c33275994ba5a13b18f69c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d570883cfed52acf5b5c55c899ac7cacc611b3d00898ecd9961fc9cc7237944",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-06-07T22:33:03Z",
    "title_canon_sha256": "e86687c67e5af6dd91dea41d1dde8530f4d8b0ea3a80efe6204d73d9d22ff94b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9906120",
    "kind": "arxiv",
    "version": 1
  }
}