Pith Number

pith:FPOGQDDW

pith:2009:FPOGQDDWB43BL4OJXGFCN5XBRS

not attested not anchored not stored refs pending

The architecture of the GJ876 planetary system. Masses and orbital coplanarity for planets b and c

Andreas Seifahrt, Jacob L. Bean

arxiv:0901.3144 v1 · 2009-01-20 · 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{FPOGQDDWB43BL4OJXGFCN5XBRS}

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	2026-07-04T17:14:16.162877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bdc680c760f3615f1c9b98a26f6e18ca927dfdd7a74da527665007535e725f3

Aliases

arxiv: 0901.3144 · arxiv_version: 0901.3144v1 · doi: 10.48550/arxiv.0901.3144 · pith_short_12: FPOGQDDWB43B · pith_short_16: FPOGQDDWB43BL4OJ · pith_short_8: FPOGQDDW

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/FPOGQDDWB43BL4OJXGFCN5XBRS \
  | 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: 2bdc680c760f3615f1c9b98a26f6e18ca927dfdd7a74da527665007535e725f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00f97b59aaae51d9532975fbafc099e23b4c0c560be34014fc716514a323ba7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-01-20T21:01:26Z",
    "title_canon_sha256": "242ee083ca9eef924347fd29dd989483ae142cd8a744fbaf616309070a135283"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.3144",
    "kind": "arxiv",
    "version": 1
  }
}