Pith Number

pith:7PCFV2DA

pith:2022:7PCFV2DAPLBJTQX7DNTZLELKMN

not attested not anchored not stored refs pending

Retrieving the C and O Abundances of HR 7672~AB: a Solar-Type Primary Star with a Benchmark Brown Dwarf

Andrew Skemer, Anusha Pai Asnodkar, Arpita Roy, Ashley Baker, Benjamin Calvin, Ben Sappey, Charlotte Z. Bond, Daniel Echeverri, Dimitri Mawet, Evan Morris, Garreth Ruane, Geoffrey A. Blake, Greg Doppmann, Jacklyn Pezzato, Jacques-Robert Delorme, Jared R. Kolecki, Jason J. Wang, Jean-Baptiste Ruffio, Jerry W. Xuan, Ji Wang, J. Kent Wallace, Luke Finnerty, Michael C. Liu, Michael P. Fitzgerald, Nemanja Jovanovic, Nicole L. Wallack, Peter Wizinowich, Randall Bartos, Ronald Lopez, Sam Ragland, Sylvain Cetre, Taylor Venenciano, Tobias Schofield

arxiv:2202.02477 v1 · 2022-02-05 · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7PCFV2DAPLBJTQX7DNTZLELKMN}

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	2026-07-05T04:11:55.903460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbc45ae8607ac299c2ff1b6795916a634a140556525cb5f54cb0bd035fa10ee5

Aliases

arxiv: 2202.02477 · arxiv_version: 2202.02477v1 · doi: 10.48550/arxiv.2202.02477 · pith_short_12: 7PCFV2DAPLBJ · pith_short_16: 7PCFV2DAPLBJTQX7 · pith_short_8: 7PCFV2DA

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/7PCFV2DAPLBJTQX7DNTZLELKMN \
  | 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: fbc45ae8607ac299c2ff1b6795916a634a140556525cb5f54cb0bd035fa10ee5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "882cbfda4c4a8f3a67d0a0b9dfa4c99b6255672c11713e7a1795ade2cddc9514",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2022-02-05T03:14:25Z",
    "title_canon_sha256": "09beadb15508e4c1a1258526f3a2957a4d6e9c3669d93417a07c06d7c7c172fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.02477",
    "kind": "arxiv",
    "version": 1
  }
}