Pith Number

pith:NC62GRR2

pith:1999:NC62GRR2SIWVO57L54CGOJ23A4

not attested not anchored not stored refs pending

The Light Curve and Evolutionary Status of the Carbon Star V Hya

G. R. Knapp, J.A.Mattei, K. Young, M. Crosas, M.P. Rupen, S. I. Dobrovolsky, Z. Ivezic

arxiv:astro-ph/9907234 v1 · 1999-07-16 · 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{NC62GRR2SIWVO57L54CGOJ23A4}

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

Molecular Distributions and Abundances in the Binary-Shaped Outflow of V Hya

Receipt and verification

First computed	2026-07-04T14:16:59.913803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68bda3463a922d5777ebef0467275b071a33c4063731e1e80f41e285750a0cb7

Aliases

arxiv: astro-ph/9907234 · arxiv_version: astro-ph/9907234v1 · doi: 10.48550/arxiv.astro-ph/9907234 · pith_short_12: NC62GRR2SIWV · pith_short_16: NC62GRR2SIWVO57L · pith_short_8: NC62GRR2

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/NC62GRR2SIWVO57L54CGOJ23A4 \
  | 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: 68bda3463a922d5777ebef0467275b071a33c4063731e1e80f41e285750a0cb7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0141555204dc8a8fbf3cdffd95f629be4e1c01a0a3b0cb0b38519e437998972d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-07-16T21:12:32Z",
    "title_canon_sha256": "8c928d85229b37dd2fa3f68258281f9f2987c420e7820e774140062115489a3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9907234",
    "kind": "arxiv",
    "version": 1
  }
}