Pith Number

pith:AXTYIU2C

pith:2009:AXTYIU2CP7X3DIY7POIAFJSYJN

not attested not anchored not stored refs pending

Five planets and an independent confirmation of HD 196885Ab from Lick Observatory

A. W. Howard, C. McCarthy, D. A. Fischer, G. W. Henry, G. W. Marcy, H. Isaacson, J. A. Johnson, J. A. Valenti, J. T. Wright, K. M. G. Peek, M. Giguere, P. Driscoll

arxiv:0908.1596 v1 · 2009-08-11 · astro-ph.EP · 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{AXTYIU2CP7X3DIY7POIAFJSYJN}

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	2026-05-18T02:12:35.365919Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05e78453427fefb1a31f7b9002a6584b50a63cfa72f03df361a400122f2cfe36

Aliases

arxiv: 0908.1596 · arxiv_version: 0908.1596v1 · doi: 10.48550/arxiv.0908.1596 · pith_short_12: AXTYIU2CP7X3 · pith_short_16: AXTYIU2CP7X3DIY7 · pith_short_8: AXTYIU2C

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/AXTYIU2CP7X3DIY7POIAFJSYJN \
  | 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: 05e78453427fefb1a31f7b9002a6584b50a63cfa72f03df361a400122f2cfe36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53c21e43d53b53c577c84c05c5090f01296de17d1fe5585566e18e3231771e55",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-08-11T23:43:14Z",
    "title_canon_sha256": "fe0128da9eecbfcc469b14dc1589fd35cf05fec6cf59d42803b5e89e86f6eaeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1596",
    "kind": "arxiv",
    "version": 1
  }
}