Pith Number

pith:VIRSCJ2U

pith:1998:VIRSCJ2UEBGX7HUGLRYQPEW7MG

not attested not anchored not stored refs pending

R-process abundances and cosmochronometers in old metal-poor halo stars

B. Pfeiffer, C. Sneden, D. Tytler, F.-K. Thielemann, J.J. Cowan, K.-L. Kratz, S. Burles, T.C. Beers

arxiv:astro-ph/9812414 v1 · 1998-12-22 · astro-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{VIRSCJ2UEBGX7HUGLRYQPEW7MG}

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	2026-07-04T14:16:27.660249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa23212754204d7f9e865c710792df61960ad498b1775a2b478a868f9debfc3c

Aliases

arxiv: astro-ph/9812414 · arxiv_version: astro-ph/9812414v1 · doi: 10.48550/arxiv.astro-ph/9812414 · pith_short_12: VIRSCJ2UEBGX · pith_short_16: VIRSCJ2UEBGX7HUG · pith_short_8: VIRSCJ2U

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/VIRSCJ2UEBGX7HUGLRYQPEW7MG \
  | 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: aa23212754204d7f9e865c710792df61960ad498b1775a2b478a868f9debfc3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41dd71d87b4671e298beb51c4578d4eaca390682af7fdb36e1c837922ba4bb6e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-12-22T17:23:42Z",
    "title_canon_sha256": "52e4b228bb8a1d956c83b5957dac355001935dfa565eef77b6a4c2e56ab16238"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9812414",
    "kind": "arxiv",
    "version": 1
  }
}