Pith Number

pith:423ZBQFZ

pith:2018:423ZBQFZZ7Q3R36QXXNMSCCYW6

not attested not anchored not stored refs pending

New Young Stars and Brown Dwarfs in the Upper Scorpius Association

E. E. Mamajek, K. A. Herrmann, K. L. Luhman, M. J. Pecaut, T. L. Esplin

arxiv:1807.07955 v1 · 2018-07-20 · 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{423ZBQFZZ7Q3R36QXXNMSCCYW6}

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	2026-05-18T00:08:38.002615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6b790c0b9cfe1b8efd0bddac90858b78e73fdcf09696a269b92e4509eb80d3d

Aliases

arxiv: 1807.07955 · arxiv_version: 1807.07955v1 · doi: 10.48550/arxiv.1807.07955 · pith_short_12: 423ZBQFZZ7Q3 · pith_short_16: 423ZBQFZZ7Q3R36Q · pith_short_8: 423ZBQFZ

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/423ZBQFZZ7Q3R36QXXNMSCCYW6 \
  | 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: e6b790c0b9cfe1b8efd0bddac90858b78e73fdcf09696a269b92e4509eb80d3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db14d4fc52f58e6b6f197e078f3ce73bb2ed912efdd555bdeaba3720cf226207",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-20T17:56:45Z",
    "title_canon_sha256": "59fb167d7944fab2355da6aa91979b3f79461ac0ab74240bad4ed0cbdc879596"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07955",
    "kind": "arxiv",
    "version": 1
  }
}