Pith Number

pith:GCB5OIDV

pith:2009:GCB5OIDV5XPX7AOWXV27FI4SZN

not attested not anchored not stored refs pending

Spectroscopic binaries among Hipparcos M giants I. Data, orbits, and intrinsic variations

A. Frankowski, A. Jorissen, B. Famaey, D. Pourbaix, M. Mayor, S. Udry, S. Van Eck

arxiv:0901.0934 v2 · 2009-01-07 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GCB5OIDV5XPX7AOWXV27FI4SZN}

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	2026-05-18T02:15:03.018488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3083d72075eddf7f81d6bd75f2a392cb59715cd5d22907264cef541d154fc1c8

Aliases

arxiv: 0901.0934 · arxiv_version: 0901.0934v2 · doi: 10.48550/arxiv.0901.0934 · pith_short_12: GCB5OIDV5XPX · pith_short_16: GCB5OIDV5XPX7AOW · pith_short_8: GCB5OIDV

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/GCB5OIDV5XPX7AOWXV27FI4SZN \
  | 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: 3083d72075eddf7f81d6bd75f2a392cb59715cd5d22907264cef541d154fc1c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61905f890b4b3412fa699bf46994a49a5cff79dc077505c0615174e6ae385655",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-01-07T21:24:21Z",
    "title_canon_sha256": "9da7d27793665be83c90c244764a725686140019eea668f73f2b22ce67bb6465"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0934",
    "kind": "arxiv",
    "version": 2
  }
}