Pith Number

pith:O6AFHBWC

pith:2000:O6AFHBWCPAEBRLWNRK6Q2RJE5X

not attested not anchored not stored refs pending

A Lack of Planets in 47 Tucanae from an HST Search

A. Burrows, A. Sarajedini, C. R. Stagg, D. A. VandenBerg, D. Charbonneau, D. Naef, D. N. C. Lin, E. F. Milone, G. W. Marcy, H. Bruntt, J. H. Howell, M. D. Albrow, M. D. Williams, M. Mayor, N. R. Baliber, P. Choi, P. D. Edmonds, P. Guhathakurta, Ronald L. Gilliland, S. Frandsen, S. Sigurdsson, S. S. Vogt, T. M. Brown, W. D. Cochran

arxiv:astro-ph/0009397 v2 · 2000-09-25 · 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{O6AFHBWCPAEBRLWNRK6Q2RJE5X}

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	2026-07-04T14:10:44.976211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77805386c2780818aecd8abd0d4524edd6bc6def7b3fd2a5ef9ee92b37355cbc

Aliases

arxiv: astro-ph/0009397 · arxiv_version: astro-ph/0009397v2 · doi: 10.48550/arxiv.astro-ph/0009397 · pith_short_12: O6AFHBWCPAEB · pith_short_16: O6AFHBWCPAEBRLWN · pith_short_8: O6AFHBWC

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/O6AFHBWCPAEBRLWNRK6Q2RJE5X \
  | 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: 77805386c2780818aecd8abd0d4524edd6bc6def7b3fd2a5ef9ee92b37355cbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "240be0a86e16ff86cdc66006491b97fc0b2e7d1ae8c9068802871caf8ae11bcd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-09-25T16:47:43Z",
    "title_canon_sha256": "ac362738d3ed74372e89f225bfa3d2d51b542cd2c3cc46fe12a88b6b7ef25b02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0009397",
    "kind": "arxiv",
    "version": 2
  }
}