Pith Number

pith:U6FU45OD

pith:2014:U6FU45ODIF53QTL2PKQJWXNZDO

not attested not anchored not stored refs pending

Strong Brightness Variations Signal Cloudy-to-Clear Transition of Brown Dwarfs

David Lafreni\`ere, Etienne Artigau, Jacqueline Radigan, Ray Jayawardhana

arxiv:1404.3247 v2 · 2014-04-11 · 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{U6FU45ODIF53QTL2PKQJWXNZDO}

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	2026-05-18T01:43:35.216653Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a78b4e75c3417bb84d7a7aa09b5db91b9097bbc404dfbfdd430ce5e1d7c25819

Aliases

arxiv: 1404.3247 · arxiv_version: 1404.3247v2 · doi: 10.48550/arxiv.1404.3247 · pith_short_12: U6FU45ODIF53 · pith_short_16: U6FU45ODIF53QTL2 · pith_short_8: U6FU45OD

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/U6FU45ODIF53QTL2PKQJWXNZDO \
  | 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: a78b4e75c3417bb84d7a7aa09b5db91b9097bbc404dfbfdd430ce5e1d7c25819

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6bed1462269eef305ce0d777e5e2f8f1a4db7109c8dc6db7ac74ffee9aed44d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-04-11T23:31:49Z",
    "title_canon_sha256": "c10a5a1e424217d48620eb453345857d0cc7a338d23c14f3487731bf60f84c3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.3247",
    "kind": "arxiv",
    "version": 2
  }
}