Pith Number

pith:QLTVVFM2

pith:2017:QLTVVFM2DP27ZVONYYNT5DC32G

not attested not anchored not stored refs pending

C/O ratios in planetary nebulae with dual-dust chemistry from faint optical recombination lines

2), (2) Univ. La Lalguna, (3) IA-UNAM, (4) Konkoly Observatory, (5) Australian National Univ, 6), (7) INAOE, A. I. Karakas (5, Australia, Australia (6), D. A. Garc\'ia-Hern\'andez (1, F. Dell'Agli (1, G. Delgado-Inglada (3), Hungary, J. Garc\'ia-Rojas (1, Mexico, Mexico), M. Lugaro (4, Monash Univ., M. Rodr\'iguez (7) ((1) IAC, Spain

arxiv:1709.07958 v1 · 2017-09-22 · astro-ph.SR · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QLTVVFM2DP27ZVONYYNT5DC32G}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:28:13.935071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82e75a959a1bf5fcd5cdc61b3e8c5bd198b1d81e9c90b8c8ed991daec58539c8

Aliases

arxiv: 1709.07958 · arxiv_version: 1709.07958v1 · doi: 10.48550/arxiv.1709.07958 · pith_short_12: QLTVVFM2DP27 · pith_short_16: QLTVVFM2DP27ZVON · pith_short_8: QLTVVFM2

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/QLTVVFM2DP27ZVONYYNT5DC32G \
  | 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: 82e75a959a1bf5fcd5cdc61b3e8c5bd198b1d81e9c90b8c8ed991daec58539c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fc630ec9441860cf565291398cb450845780a429ff10d8b610d2f64eaeb94a3",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-09-22T21:32:30Z",
    "title_canon_sha256": "593557f5a4b93e9bc38264d355df296ca9c714afd4af195ca821941446628df5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07958",
    "kind": "arxiv",
    "version": 1
  }
}