Pith Number

pith:KTBPD2BZ

pith:2009:KTBPD2BZXZTMWL5FITVYHQORBM

not attested not anchored not stored refs pending

The DODO Survey II: A Gemini Direct Imaging Search for Substellar and Planetary Mass Companions around Nearby Equatorial and Northern Hemisphere White Dwarfs

2), (2) Gemini Observatory, (3) Department of Astrophysics, Astronomy, Chile, E. Hogan (1, F. J. Clarke (3) ((1) Department of Physics, La Serena, M. R. Burleigh (1), UK, UK), University of Leicester, University of Oxford

arxiv:0901.0532 v1 · 2009-01-05 · 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{KTBPD2BZXZTMWL5FITVYHQORBM}

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	2026-05-18T04:26:45.954990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54c2f1e839be66cb2fa544eb83c1d10b3d83d8befd3b1d65a884f6be6b1a0c25

Aliases

arxiv: 0901.0532 · arxiv_version: 0901.0532v1 · doi: 10.48550/arxiv.0901.0532 · pith_short_12: KTBPD2BZXZTM · pith_short_16: KTBPD2BZXZTMWL5F · pith_short_8: KTBPD2BZ

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/KTBPD2BZXZTMWL5FITVYHQORBM \
  | 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: 54c2f1e839be66cb2fa544eb83c1d10b3d83d8befd3b1d65a884f6be6b1a0c25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7ffc242b4a2cf79b919498b4dab2d8c96c0a64f3831cd4c91af5ab12ffdef7f",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-01-05T18:17:58Z",
    "title_canon_sha256": "903200fe0b0ffe260bf85b36db51fb88c056e6a82ed62e4a4b7d61c2b938495b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0532",
    "kind": "arxiv",
    "version": 1
  }
}