Pith Number

pith:G4ZF7RPS

pith:2019:G4ZF7RPSYBQA54TAZEKG2VTU3F

not attested not anchored not stored refs pending

Is pi Men c's atmosphere hydrogen-dominated? Insights from a non-detecton of Hy Ly-alpha absorption

Allison Youngblood, Antonio Garc\'ia Mu\~noz, Davide Gandolfi, Heike Rauer, Juan Cabrera, Luca Fossati

arxiv:1912.06913 v1 · 2019-12-14 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G4ZF7RPSYBQA54TAZEKG2VTU3F}

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	2026-07-05T00:33:24.818720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37325fc5f2c0600ef260c9146d5674d95fe2c10419bfaebe2594a7bc8ead0668

Aliases

arxiv: 1912.06913 · arxiv_version: 1912.06913v1 · doi: 10.48550/arxiv.1912.06913 · pith_short_12: G4ZF7RPSYBQA · pith_short_16: G4ZF7RPSYBQA54TA · pith_short_8: G4ZF7RPS

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/G4ZF7RPSYBQA54TAZEKG2VTU3F \
  | 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: 37325fc5f2c0600ef260c9146d5674d95fe2c10419bfaebe2594a7bc8ead0668

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95fc71c8b23a413784f8137cd3d62cbbff5fb61bfe72ceff17d66ac002fa006b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-12-14T20:02:46Z",
    "title_canon_sha256": "044f38edeb054848329585c4e4e71483fe44a33f3c7a2b1efaf42d285ac7cf05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.06913",
    "kind": "arxiv",
    "version": 1
  }
}