Pith Number

pith:P6EOS2AL

pith:2012:P6EOS2AL4O7CXUIMICHXTBIOQK

not attested not anchored not stored refs pending

Theoretical Spectra of Terrestrial Exoplanet Surfaces

Bethany L. Ehlmann, Renyu Hu, Sara Seager

arxiv:1204.1544 v1 · 2012-04-06 · 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{P6EOS2AL4O7CXUIMICHXTBIOQK}

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	2026-05-18T01:57:56.058679Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f88e9680be3be2bd10c408f79850e82aab3d28ca12c5fe7d4b083729286362d

Aliases

arxiv: 1204.1544 · arxiv_version: 1204.1544v1 · doi: 10.48550/arxiv.1204.1544 · pith_short_12: P6EOS2AL4O7C · pith_short_16: P6EOS2AL4O7CXUIM · pith_short_8: P6EOS2AL

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/P6EOS2AL4O7CXUIMICHXTBIOQK \
  | 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: 7f88e9680be3be2bd10c408f79850e82aab3d28ca12c5fe7d4b083729286362d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbd3c6506da8cf725e125da85d6b13c03ae7ace60cbfd866009fb8a433061251",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-04-06T19:40:36Z",
    "title_canon_sha256": "e2b4ff208901ed851bb3b2b35f126d3395f84d17e9198dc466b7c13b7b7d00a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1544",
    "kind": "arxiv",
    "version": 1
  }
}