Pith Number

pith:2MG5SJO4

pith:2015:2MG5SJO4TP3ZT3CLZVAC5WSD3L

not attested not anchored not stored refs pending

K2 Discovery of Young Eclipsing Binaries in Upper Scorpius: Direct Mass and Radius Determinations for the Lowest Mass Stars and Initial Characterization of an Eclipsing Brown Dwarf Binary

Andrew W. Howard, Ann Marie Cody, John M. Carpenter, Lynne A. Hillenbrand, Trevor J. David

arxiv:1510.08087 v2 · 2015-10-27 · 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{2MG5SJO4TP3ZT3CLZVAC5WSD3L}

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	2026-05-18T01:23:02.734440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d30dd925dc9bf799ec4bcd402eda43dae6644c3dce83a7d5e92a0efe6f1cd059

Aliases

arxiv: 1510.08087 · arxiv_version: 1510.08087v2 · doi: 10.48550/arxiv.1510.08087 · pith_short_12: 2MG5SJO4TP3Z · pith_short_16: 2MG5SJO4TP3ZT3CL · pith_short_8: 2MG5SJO4

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/2MG5SJO4TP3ZT3CLZVAC5WSD3L \
  | 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: d30dd925dc9bf799ec4bcd402eda43dae6644c3dce83a7d5e92a0efe6f1cd059

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce21d7473bd1e241ad24025ade8b377a3538551abda12589193858b22c6be562",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-10-27T20:27:32Z",
    "title_canon_sha256": "c2fa8c77b99c5fac358325b2ef1e39665eef37ee4240c43e07f6de10c6b26cda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.08087",
    "kind": "arxiv",
    "version": 2
  }
}