Pith Number

pith:OQFS3OTG

pith:2008:OQFS3OTGG5FSWPIWFMTRTZJPYL

not attested not anchored not stored refs pending

A Mini-survey of Ultracool Dwarfs at 4.9 GHz

A. Antonova, A. Golden, G. Hallinan, J.G. Doyle, S. Bourke

arxiv:0805.4574 v1 · 2008-05-29 · 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{OQFS3OTGG5FSWPIWFMTRTZJPYL}

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	2026-07-04T17:11:03.039215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

740b2dba66374b2b3d162b2719e52fc2eedb1356825e7fa54579421ef13d0738

Aliases

arxiv: 0805.4574 · arxiv_version: 0805.4574v1 · doi: 10.48550/arxiv.0805.4574 · pith_short_12: OQFS3OTGG5FS · pith_short_16: OQFS3OTGG5FSWPIW · pith_short_8: OQFS3OTG

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/OQFS3OTGG5FSWPIWFMTRTZJPYL \
  | 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: 740b2dba66374b2b3d162b2719e52fc2eedb1356825e7fa54579421ef13d0738

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4a387328d849fad1c1d7e0eeae98533a14c3d008598335314df1ee39c94fffa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-05-29T15:52:44Z",
    "title_canon_sha256": "63660de9baf36c5f24202d7f4b52d7d86f18ce6c1fecd634de06b1ce5e4808fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.4574",
    "kind": "arxiv",
    "version": 1
  }
}