Pith Number

pith:SF4DZVHI

pith:1997:SF4DZVHI3PQILODXBQ26MPZ7ER

not attested not anchored not stored refs pending

R-Process Freezeout, Nuclear Deformation, and the Rare-Earth Element Peak

B.S. Meyer, J. Engel, J.R. Bennett, R. Surman

arxiv:astro-ph/9701007 v1 · 1997-01-03 · astro-ph · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SF4DZVHI3PQILODXBQ26MPZ7ER}

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	2026-05-18T01:07:40.345513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91783cd4e8dbe085b8770c35e63f3f2446c7cabf648dad9612eeb43675d68e6e

Aliases

arxiv: astro-ph/9701007 · arxiv_version: astro-ph/9701007v1 · doi: 10.48550/arxiv.astro-ph/9701007 · pith_short_12: SF4DZVHI3PQI · pith_short_16: SF4DZVHI3PQILODX · pith_short_8: SF4DZVHI

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/SF4DZVHI3PQILODXBQ26MPZ7ER \
  | 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: 91783cd4e8dbe085b8770c35e63f3f2446c7cabf648dad9612eeb43675d68e6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65499faa81d1916324b4923516229c603dd9ed71274ebb88f7bdc4973819e8f0",
    "cross_cats_sorted": [
      "nucl-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-01-03T22:04:09Z",
    "title_canon_sha256": "5641db93b62955e25dc110574dc8426f4d1d33b519e6f3056252c465b68e1c55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9701007",
    "kind": "arxiv",
    "version": 1
  }
}