Pith Number

pith:MSB2G6H5

pith:2012:MSB2G6H56YRIIEM6RQY6J5VNH5

not attested not anchored not stored refs pending

Discovery of an Unusually Red L-type Brown Dwarf

Frederick J. Vrba, Hugh C. Harris, Jacqueline K. Faherty, John D. Shaw, John E. Gizis, Kimberly M. Aller, Michael C. Liu, Niall R. Deacon, Philip J. Castro

arxiv:1207.4012 v1 · 2012-07-17 · 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{MSB2G6H56YRIIEM6RQY6J5VNH5}

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	2026-05-18T01:56:17.444595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6483a378fdf62284119e8c31e4f6ad3f66084435933aee75aa39c8bf0ac14349

Aliases

arxiv: 1207.4012 · arxiv_version: 1207.4012v1 · doi: 10.48550/arxiv.1207.4012 · pith_short_12: MSB2G6H56YRI · pith_short_16: MSB2G6H56YRIIEM6 · pith_short_8: MSB2G6H5

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/MSB2G6H56YRIIEM6RQY6J5VNH5 \
  | 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: 6483a378fdf62284119e8c31e4f6ad3f66084435933aee75aa39c8bf0ac14349

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57f993d1e42b1bf8cd813d44501bf0957ed49b60da991aa0a5ac50b870753375",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-07-17T14:37:19Z",
    "title_canon_sha256": "5bfc09c8f299d709a418235c31f10053de2bf5ed8cc09044dd35c4494dbc5716"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4012",
    "kind": "arxiv",
    "version": 1
  }
}