Pith Number

pith:25S7EIDX

pith:2007:25S7EIDXOX6K47TBZATSX7CITW

not attested not anchored not stored refs pending

NACO-SDI direct imaging search for the exoplanet Eps Eri b

Artie Hatzes, Barbara McArthur, Beth Biller, Eike Guenther, Elena Masciadri, Eric Nielsen, G. Fritz Benedict, Kerstin Geissler, Laird Close, Markus Hartung, Markus Janson, Rainer Lenzen, Sabine Reffert, Stephan Kellner, Thomas Henning, Wolfgang Brandner

arxiv:astro-ph/0703300 v1 · 2007-03-13 · 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{25S7EIDXOX6K47TBZATSX7CITW}

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	2026-07-04T15:25:03.728969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d765f2207775fcae7e61c8272bfc489db0ba4fd4e6a6293558479c67a6f2a923

Aliases

arxiv: astro-ph/0703300 · arxiv_version: astro-ph/0703300v1 · doi: 10.48550/arxiv.astro-ph/0703300 · pith_short_12: 25S7EIDXOX6K · pith_short_16: 25S7EIDXOX6K47TB · pith_short_8: 25S7EIDX

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/25S7EIDXOX6K47TBZATSX7CITW \
  | 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: d765f2207775fcae7e61c8272bfc489db0ba4fd4e6a6293558479c67a6f2a923

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b17494fcc76817866c4d136bb6039607bc1f1a539fb3519513b4d93ef9dfc0db",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-03-13T09:09:41Z",
    "title_canon_sha256": "a72ef0cc19dc8c2489f2691cb342ed342745eb8d39aea82d6ac7cd944dff1a16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0703300",
    "kind": "arxiv",
    "version": 1
  }
}