Pith Number

pith:ZSBYXW7T

pith:2007:ZSBYXW7TWDMXVLGFJGDKU2EPKE

not attested not anchored not stored refs pending

A Spitzer Spectrum of the Exoplanet HD 189733b

(2) Harvard-Smithsonian Center for Astrophysics, (3) Steward Observatory, (4) Ball Aerospace, A. Burrows (3), C. J. Grillmair (1), D. Charbonneau (2), D. Levine (1) ((1) Spitzer Science Center, J. Stauffer (1), J. van Cleve (4), L. Armus (1), Technologies Corp.), V. Meadows (1)

arxiv:astro-ph/0702494 v1 · 2007-02-19 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZSBYXW7TWDMXVLGFJGDKU2EPKE}

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	2026-05-18T02:40:24.881640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc838bdbf3b0d97aacc54986aa688f510ab9f195a7e205bc63f413fe9d70ede2

Aliases

arxiv: astro-ph/0702494 · arxiv_version: astro-ph/0702494v1 · doi: 10.48550/arxiv.astro-ph/0702494 · pith_short_12: ZSBYXW7TWDMX · pith_short_16: ZSBYXW7TWDMXVLGF · pith_short_8: ZSBYXW7T

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/ZSBYXW7TWDMXVLGFJGDKU2EPKE \
  | 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: cc838bdbf3b0d97aacc54986aa688f510ab9f195a7e205bc63f413fe9d70ede2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e981acad58d6b2d4db6413d79e485b039e658f7c32992bf5165005fe0155aff",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-02-19T21:00:26Z",
    "title_canon_sha256": "d2afe18bd8ecea95fb4d7a33d7eb2ea61c28d1594c99e74f8846bb15a26ad5b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0702494",
    "kind": "arxiv",
    "version": 1
  }
}