Pith Number

pith:MYNLR2CF

pith:2009:MYNLR2CFTGAHJWU7OCTD5CQ2BX

not attested not anchored not stored refs pending

Deciphering Spectral Fingerprints of Habitable Extrasolar Planets

F. Selsis, H. Lammer, L. Kaltenegger, M. Fridlund, the Darwin Science team

arxiv:0906.2263 v2 · 2009-06-12 · astro-ph.EP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MYNLR2CFTGAHJWU7OCTD5CQ2BX}

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	2026-05-18T02:13:20.581754Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

661ab8e845998074da9f70a63e8a1a0df18e68c55d1d07fc5cea9008f91d9924

Aliases

arxiv: 0906.2263 · arxiv_version: 0906.2263v2 · doi: 10.48550/arxiv.0906.2263 · pith_short_12: MYNLR2CFTGAH · pith_short_16: MYNLR2CFTGAHJWU7 · pith_short_8: MYNLR2CF

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/MYNLR2CFTGAHJWU7OCTD5CQ2BX \
  | 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: 661ab8e845998074da9f70a63e8a1a0df18e68c55d1d07fc5cea9008f91d9924

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ac0c4717b5b785c287e1437b5732154bb9b40caeb8869e6d89afab0b3c10d51",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-06-12T07:42:23Z",
    "title_canon_sha256": "722b9691c9753b41d9433e0c20014158242ecbdddedc7d01d5d16d11885965ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2263",
    "kind": "arxiv",
    "version": 2
  }
}