Pith Number

pith:YPHW7ORB

pith:2011:YPHW7ORBDHV42W4IYYWVL5IIAP

not attested not anchored not stored refs pending

Disc Frequencies for Brown Dwarfs in the Upper Scorpius OB Association: Implications for Brown Dwarf Formation Theories

B. Riaz, D. Stamatellos, M. Thompson, N. Lodieu, S. Goodwin

arxiv:1111.3929 v1 · 2011-11-16 · 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{YPHW7ORBDHV42W4IYYWVL5IIAP}

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	2026-05-18T01:59:32.147299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3cf6fba2119ebcd5b88c62d55f50803d59de763d115fa44da32fb33251fee62

Aliases

arxiv: 1111.3929 · arxiv_version: 1111.3929v1 · doi: 10.48550/arxiv.1111.3929 · pith_short_12: YPHW7ORBDHV4 · pith_short_16: YPHW7ORBDHV42W4I · pith_short_8: YPHW7ORB

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/YPHW7ORBDHV42W4IYYWVL5IIAP \
  | 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: c3cf6fba2119ebcd5b88c62d55f50803d59de763d115fa44da32fb33251fee62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d658830549d25324b4df4490c31da6661ca543ba963b0c5aaa368181745d222",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-11-16T20:00:02Z",
    "title_canon_sha256": "f40753d06dae54c9c902d2eebfb0e3418e4296f96dfe381e7e432c4a82424b86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3929",
    "kind": "arxiv",
    "version": 1
  }
}