Pith Number

pith:NIB4IAQC

pith:1999:NIB4IAQCSY2DPP5E35LMRPU5DC

not attested not anchored not stored refs pending

Precise radial velocities of Proxima Centauri

A. P. Hatzes, K. Dennerl, M. Endl, M. K\"urster, S. D\"obereiner, W. D. Cochran

arxiv:astro-ph/9903010 v1 · 1999-03-02 · 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{NIB4IAQCSY2DPP5E35LMRPU5DC}

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	2026-05-18T04:21:32.387819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a03c40202963437bfa4df56c8be9d18a53b950379f4e50623a3ff44f4775576

Aliases

arxiv: astro-ph/9903010 · arxiv_version: astro-ph/9903010v1 · doi: 10.48550/arxiv.astro-ph/9903010 · pith_short_12: NIB4IAQCSY2D · pith_short_16: NIB4IAQCSY2DPP5E · pith_short_8: NIB4IAQC

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/NIB4IAQCSY2DPP5E35LMRPU5DC \
  | 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: 6a03c40202963437bfa4df56c8be9d18a53b950379f4e50623a3ff44f4775576

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "568bb82d331debbfceeb38446228b110e971bc9e47430ccde1e8a201e56982f5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-03-02T03:39:22Z",
    "title_canon_sha256": "efe792f8905834b9f92cdf033e0dee5c0029888b9d4f8c8d2f7ee2ed548e36fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9903010",
    "kind": "arxiv",
    "version": 1
  }
}