Pith Number

pith:UI6XWH6E

pith:2021:UI6XWH6ECS4SQEQFQKRTFK6PL6

not attested not anchored not stored refs pending

Nucleosynthetic Pt isotope anomalies and the Hf-W chronology of core formation in inner and outer solar system planetesimals

Christoph Burkhardt, Francis Nimmo, Fridolin Spitzer, Thorsten Kleine

arxiv:2109.15250 v1 · 2021-09-30 · astro-ph.EP · physics.geo-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UI6XWH6ECS4SQEQFQKRTFK6PL6}

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	2026-07-05T03:28:25.965907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a23d7b1fc414b928120582a332abcf5f9b017ee87982e3783b68eae63ce6edda

Aliases

arxiv: 2109.15250 · arxiv_version: 2109.15250v1 · doi: 10.48550/arxiv.2109.15250 · pith_short_12: UI6XWH6ECS4S · pith_short_16: UI6XWH6ECS4SQEQF · pith_short_8: UI6XWH6E

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/UI6XWH6ECS4SQEQFQKRTFK6PL6 \
  | 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: a23d7b1fc414b928120582a332abcf5f9b017ee87982e3783b68eae63ce6edda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4332648e304bad3e9781bcc6f0060611102843942182face6122b3557d04d4a2",
    "cross_cats_sorted": [
      "physics.geo-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-09-30T16:33:41Z",
    "title_canon_sha256": "5f45534616f72643081a282c4dc96b1cb276216f6be2eca943f4aa3d365d29ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.15250",
    "kind": "arxiv",
    "version": 1
  }
}