Pith Number

pith:U24QUIMG

pith:2018:U24QUIMGE4DAH37HN5D5YJP5HC

not attested not anchored not stored refs pending

GPI Spectroscopy of the Mass, Age, and Metallicity Benchmark Brown Dwarf HD 4747 B

David A. Principe, Emily L. Rice, Erica J. Gonzales, Eric B. Bechter, Justin R. Crepp, Laurent Pueyo, Lucas Cieza, Paige A. Giorla Godfrey, Schuyler Wolff

arxiv:1801.06192 v1 · 2018-01-18 · astro-ph.SR · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U24QUIMGE4DAH37HN5D5YJP5HC}

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	2026-05-18T00:22:54.812344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6b90a2186270603efe76f47dc25fd38a2428f1a1364268f54af87d9112ed10c

Aliases

arxiv: 1801.06192 · arxiv_version: 1801.06192v1 · doi: 10.48550/arxiv.1801.06192 · pith_short_12: U24QUIMGE4DA · pith_short_16: U24QUIMGE4DAH37H · pith_short_8: U24QUIMG

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/U24QUIMGE4DAH37HN5D5YJP5HC \
  | 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: a6b90a2186270603efe76f47dc25fd38a2428f1a1364268f54af87d9112ed10c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cfd152fd9126d642aa6ad742a2385f1c8975737c624dfebdaf4c850795de8bc",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-01-18T19:00:11Z",
    "title_canon_sha256": "f9f35a60f636a2af3356b303f8acbae507524f9108708a77196f471be30c96b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06192",
    "kind": "arxiv",
    "version": 1
  }
}