Pith Number

pith:UQR2OYRF

pith:2014:UQR2OYRFZL3GNEMNEM5Z45QSYR

not attested not anchored not stored refs pending

Stellar origin of the 182Hf cosmochronometer and the presolar history of solar system matter

Alexander Heger, Amanda I. Karakas, Brad K. Gibson, Carolyn L. Doherty, Dean Osrin, John C. Lattanzio, Kai Zuber, Maria Lugaro, Stephane Goriely, Ulrich Ott

arxiv:1408.2050 v1 · 2014-08-09 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UQR2OYRFZL3GNEMNEM5Z45QSYR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:45:30.546296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a423a76225caf666918d233b9e7612c47a05a32d28a4376ab9c1cf7cfe02d0f4

Aliases

arxiv: 1408.2050 · arxiv_version: 1408.2050v1 · doi: 10.48550/arxiv.1408.2050 · pith_short_12: UQR2OYRFZL3G · pith_short_16: UQR2OYRFZL3GNEMN · pith_short_8: UQR2OYRF

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/UQR2OYRFZL3GNEMNEM5Z45QSYR \
  | 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: a423a76225caf666918d233b9e7612c47a05a32d28a4376ab9c1cf7cfe02d0f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ebc2c480b6d6ece70a1bcf9e95dfa25052cb86e169097398efae50984b3c05a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-08-09T05:48:07Z",
    "title_canon_sha256": "408fd8ec916d1f2efff677714402e70bf107df1fda64efdce2815b2bd64a71ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2050",
    "kind": "arxiv",
    "version": 1
  }
}