Pith Number

pith:VMT22EKG

pith:2018:VMT22EKGA52CAZVXJHGS7PNCEB

not attested not anchored not stored refs pending

Measuring oxygen abundances from stellar spectra without oxygen lines

Charlie Conroy, Hans-Walter Rix, Martin Asplund, Yuan-Sen Ting

arxiv:1801.07370 v2 · 2018-01-23 · astro-ph.SR · astro-ph.GA

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VMT22EKGA52CAZVXJHGS7PNCEB}

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	2026-05-18T00:11:06.412617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab27ad114607742066b749cd2fbda22075946c1a15c7d4b869b9289182b167c9

Aliases

arxiv: 1801.07370 · arxiv_version: 1801.07370v2 · doi: 10.48550/arxiv.1801.07370 · pith_short_12: VMT22EKGA52C · pith_short_16: VMT22EKGA52CAZVX · pith_short_8: VMT22EKG

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/VMT22EKGA52CAZVXJHGS7PNCEB \
  | 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: ab27ad114607742066b749cd2fbda22075946c1a15c7d4b869b9289182b167c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3f9d594e72c523407f9f006e6cb20bf8fa8b9808620c681a3c2d2319c9a366c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-01-23T02:00:01Z",
    "title_canon_sha256": "028b1cf880a4e779917fd66fca5be35e68a70af073e7d20333bbc49c797f6669"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07370",
    "kind": "arxiv",
    "version": 2
  }
}