Pith Number

pith:PJ7LZHQS

pith:2009:PJ7LZHQSITBVHRNLI7MTLK2EZW

not attested not anchored not stored refs pending

Brown Dwarf Disks at Ages of 5-10 Myr

B. Riaz, J. E. Gizis, N. Lodieu

arxiv:0909.4274 v2 · 2009-09-23 · 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{PJ7LZHQSITBVHRNLI7MTLK2EZW}

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	2026-05-18T02:34:27.967803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a7ebc9e1244c353c5ab47d935ab44cdaec54cade029139d9f3d5f64bccd8cc6

Aliases

arxiv: 0909.4274 · arxiv_version: 0909.4274v2 · doi: 10.48550/arxiv.0909.4274 · pith_short_12: PJ7LZHQSITBV · pith_short_16: PJ7LZHQSITBVHRNL · pith_short_8: PJ7LZHQS

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/PJ7LZHQSITBVHRNLI7MTLK2EZW \
  | 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: 7a7ebc9e1244c353c5ab47d935ab44cdaec54cade029139d9f3d5f64bccd8cc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73b2a5cd9f1cbca0eefc96b79b2da6e2a1fa9b093b74359245710c3448f92029",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-23T18:19:12Z",
    "title_canon_sha256": "2060499c1188966b3bbe1757d8ceeb00e15e89b2e7c2b5d898f7b8085f8a8448"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4274",
    "kind": "arxiv",
    "version": 2
  }
}