Pith Number

pith:FSY2RQDX

pith:2018:FSY2RQDXBTAAN2TPR6GPL3HYYH

not attested not anchored not stored refs pending

Detailed chemical compositions of the wide binary HD 80606/80607: revised stellar properties and constraints on planet formation

A.J. Mustill, D. Yong, F. Liu, I. Ram\'irez, J. Lin, J. Mel\'endez, M. Asplund, S. Feltzing

arxiv:1802.09306 v2 · 2018-02-26 · 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{FSY2RQDXBTAAN2TPR6GPL3HYYH}

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	2026-05-18T00:11:37.938838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cb1a8c0770cc006ea6f8f8cf5ecf8c1f50cd9a9869c5a98f2f40010605faa64

Aliases

arxiv: 1802.09306 · arxiv_version: 1802.09306v2 · doi: 10.48550/arxiv.1802.09306 · pith_short_12: FSY2RQDXBTAA · pith_short_16: FSY2RQDXBTAAN2TP · pith_short_8: FSY2RQDX

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/FSY2RQDXBTAAN2TPR6GPL3HYYH \
  | 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: 2cb1a8c0770cc006ea6f8f8cf5ecf8c1f50cd9a9869c5a98f2f40010605faa64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9eee0bca679baa332dbd06781cf7e656e705697513a8353d53fc6779d169d170",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-02-26T14:05:11Z",
    "title_canon_sha256": "780d32945e7e0cd429dd55b9bc17378395088aa9fbc9a325e271c3b11a5fe4b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.09306",
    "kind": "arxiv",
    "version": 2
  }
}