Pith Number

pith:BUVIDJ52

pith:2004:BUVIDJ52UQKD3GUQ6XUT6MMQMS

not attested not anchored not stored refs pending

Detection of oxygen and carbon in the hydrodynamically escaping atmosphere of the extrasolar planet HD209458b

A. Lecavelier des Etangs, A. Vidal-Madjar, C.D. Parkinson (JPL), D. Ehrenreich, G.E. Ballester (LPL), G. H\'ebrard (IAP), J.C. McConnell (York Univ.), J.-M. D\'esert, M. Mayor (Obs. de Gen\`eve), R. Ferlet (IAP)

arxiv:astro-ph/0401457 v2 · 2004-01-22 · astro-ph

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

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	2026-05-18T04:23:00.803160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d2a81a7baa4143d9a90f5e93f31906498c2f643e3f9b415c9b59e9e92fb86b9

Aliases

arxiv: astro-ph/0401457 · arxiv_version: astro-ph/0401457v2 · doi: 10.48550/arxiv.astro-ph/0401457 · pith_short_12: BUVIDJ52UQKD · pith_short_16: BUVIDJ52UQKD3GUQ · pith_short_8: BUVIDJ52

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/BUVIDJ52UQKD3GUQ6XUT6MMQMS \
  | 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: 0d2a81a7baa4143d9a90f5e93f31906498c2f643e3f9b415c9b59e9e92fb86b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6e7632e762fdd6232257ab565ff9fa7e9f65d47aeb1f1463c330eec69c6faec",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-22T13:50:59Z",
    "title_canon_sha256": "cf5e4aaa8a16de092bbcd3ef7d332e48e597ae34c920b4834c221b318511b1af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401457",
    "kind": "arxiv",
    "version": 2
  }
}