Pith Number

pith:PBKHJ7QJ

pith:2019:PBKHJ7QJRCDWCW3J7K2PEAXG6Q

not attested not anchored not stored refs pending

Astro2020 Science White Paper: High-Resolution Spectroscopic Surveys of Ultracool Dwarf Stars & Brown Dwarfs

Adam Burgasser (UC San Diego), Ansgar Reiners (Georg-August-Universit\"at G\"ottingen), Clara Sousa-Silva (MIT), Cullen Blake (University of Pennsylvania), Daniel Apai (University of Arizona), Daniella Bardalez Gagliuffi (American Museum of Natural History), Emily Martin (UC Santa Cruz), Everett Schlawin (University of Arizona), Johanna Vos (American Museum of Natural History), Jonathan Gagne (University of Montreal), Peter Plavchan (George Mason University), Quinn Konopacky (UC San Diego), Stanimir Metchev (University of Western Ontario)

arxiv:1903.04664 v1 · 2019-03-11 · 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{PBKHJ7QJRCDWCW3J7K2PEAXG6Q}

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	2026-05-17T23:51:29.012139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

785474fe098887615b69fab4f202e6f437e3edd127faa8db9d51824306b56e67

Aliases

arxiv: 1903.04664 · arxiv_version: 1903.04664v1 · doi: 10.48550/arxiv.1903.04664 · pith_short_12: PBKHJ7QJRCDW · pith_short_16: PBKHJ7QJRCDWCW3J · pith_short_8: PBKHJ7QJ

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/PBKHJ7QJRCDWCW3J7K2PEAXG6Q \
  | 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: 785474fe098887615b69fab4f202e6f437e3edd127faa8db9d51824306b56e67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2ca2a30a1e8bd597a25243e7319e9a155b8a8ef22a386538bb8f8b5af9db814",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-03-11T23:58:37Z",
    "title_canon_sha256": "760b91a533093ac8c92f2e13d725a37dc1be718e81f9f1ed4860ba8b9fc41739"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04664",
    "kind": "arxiv",
    "version": 1
  }
}