Pith Number

pith:D2FRW556

pith:2015:D2FRW556CA5GFJ5PSOBOVHLZ7Y

not attested not anchored not stored refs pending

Climbing the cosmic ladder with stellar twins

A. Casey, C. Soubiran, C. Worley, G. Gilmore, P. Jofre, T. Maedler

arxiv:1505.07806 v2 · 2015-05-28 · astro-ph.IM · 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{D2FRW556CA5GFJ5PSOBOVHLZ7Y}

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	2026-05-18T01:33:43.098075Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e8b1b77be103a62a7af9382ea9d79fe1226af28604a9ede1c6ed229fb466fca

Aliases

arxiv: 1505.07806 · arxiv_version: 1505.07806v2 · doi: 10.48550/arxiv.1505.07806 · pith_short_12: D2FRW556CA5G · pith_short_16: D2FRW556CA5GFJ5P · pith_short_8: D2FRW556

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/D2FRW556CA5GFJ5PSOBOVHLZ7Y \
  | 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: 1e8b1b77be103a62a7af9382ea9d79fe1226af28604a9ede1c6ed229fb466fca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1b23c5b59e38eef2f2c1fc28d65e7fa33c336aab241f60734f7137e45cf9cfc",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-05-28T19:18:15Z",
    "title_canon_sha256": "3c1e9a962d74b0c7f7bae038733d867e1d121b6c559054c98419fa3e44cdc398"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07806",
    "kind": "arxiv",
    "version": 2
  }
}