Pith Number

pith:IL7TJ55P

pith:2008:IL7TJ55P3RH376BREINPSAUHMK

not attested not anchored not stored refs pending

The First High-Precision Radial Velocity Search for Extra-Solar Planets

Gordon A.H. Walker

arxiv:0812.3169 v1 · 2008-12-16 · 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{IL7TJ55P3RH376BREINPSAUHMK}

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	2026-05-18T02:15:04.611341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42ff34f7afdc4fbff831221af90287628dcb5ce8851c32669257218d2ffa4189

Aliases

arxiv: 0812.3169 · arxiv_version: 0812.3169v1 · doi: 10.48550/arxiv.0812.3169 · pith_short_12: IL7TJ55P3RH3 · pith_short_16: IL7TJ55P3RH376BR · pith_short_8: IL7TJ55P

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/IL7TJ55P3RH376BREINPSAUHMK \
  | 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: 42ff34f7afdc4fbff831221af90287628dcb5ce8851c32669257218d2ffa4189

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fd1048cb3f19d5292e5175fa60a617b51547c1debc8f8df51e7025d04b3e663",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-16T22:31:46Z",
    "title_canon_sha256": "80132725123a9cfa4e428ee75e532344db6eae28f79fbe9e23263271dafd2a21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.3169",
    "kind": "arxiv",
    "version": 1
  }
}