Pith Number

pith:Q5MOJ4QE

pith:2009:Q5MOJ4QETGBCTME2WSRZEQBKJ2

not attested not anchored not stored refs pending

Brown dwarfs forming in discs: where to look for them?

Anthony Whitworth (Cardiff University, Dimitris Stamatellos, UK)

arxiv:0911.3662 v1 · 2009-11-18 · 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{Q5MOJ4QETGBCTME2WSRZEQBKJ2}

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	2026-05-18T02:10:46.179902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8758e4f204998229b09ab4a392402a4ea927addf5c9e2143eb17bf043efe78ab

Aliases

arxiv: 0911.3662 · arxiv_version: 0911.3662v1 · doi: 10.48550/arxiv.0911.3662 · pith_short_12: Q5MOJ4QETGBC · pith_short_16: Q5MOJ4QETGBCTME2 · pith_short_8: Q5MOJ4QE

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/Q5MOJ4QETGBCTME2WSRZEQBKJ2 \
  | 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: 8758e4f204998229b09ab4a392402a4ea927addf5c9e2143eb17bf043efe78ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e5f14fcb6d516dfc04b06a984911ce2d4372c3716f95d3861ec54011f4290d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-11-18T21:21:06Z",
    "title_canon_sha256": "f79fb44dbaae25d26e391a5a87e9b00fdb9ea5255049105912954ac32b460f11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3662",
    "kind": "arxiv",
    "version": 1
  }
}