Pith Number

pith:7ZBQFVZ2

pith:2010:7ZBQFVZ2O6YGPXQWGBAQG2O5XH

not attested not anchored not stored refs pending

The ultracool-field dwarf luminosity-function and space density from the Canada-France Brown Dwarf Survey

C.J. Willott, C. Reyle, E. Artigau, G.J. Hill, L. Albert, L. Malo, P. Delorme, R. Doyon, T. Forveille, X. Delfosse

arxiv:1008.2301 v1 · 2010-08-13 · astro-ph.SR · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ZBQFVZ2O6YGPXQWGBAQG2O5XH}

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	2026-05-18T02:05:48.638154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe4302d73a77b067de1630410369ddb9ee37db87af1c32477ce4158b0b51e7d7

Aliases

arxiv: 1008.2301 · arxiv_version: 1008.2301v1 · doi: 10.48550/arxiv.1008.2301 · pith_short_12: 7ZBQFVZ2O6YG · pith_short_16: 7ZBQFVZ2O6YGPXQW · pith_short_8: 7ZBQFVZ2

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/7ZBQFVZ2O6YGPXQWGBAQG2O5XH \
  | 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: fe4302d73a77b067de1630410369ddb9ee37db87af1c32477ce4158b0b51e7d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06db1a37664abc390ec331877f8afc831e2accd1d1409c6f6265c2361fee86d4",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-08-13T12:16:29Z",
    "title_canon_sha256": "1ef887ef4494267caec2ac5a747b351ed8f418dfab4a2fcedfa8170cecfaf4b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2301",
    "kind": "arxiv",
    "version": 1
  }
}