Pith Number

pith:BJSCHU6F

pith:2013:BJSCHU6FZJJHJSKGR5PGW26BNP

not attested not anchored not stored refs pending

Measuring chemical evolution and gravitational dependence of \alpha using ultraviolet Fe V and Ni V transitions in white-dwarf spectra

A. Ong, J. C. Berengut, V. V. Flambaum

arxiv:1310.2685 v2 · 2013-10-10 · physics.atom-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{BJSCHU6FZJJHJSKGR5PGW26BNP}

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	2026-05-18T03:05:27.846709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a6423d3c5ca5274c9468f5e6b6bc16bdd1fcce3d1b9e343a17aff94a115d49f

Aliases

arxiv: 1310.2685 · arxiv_version: 1310.2685v2 · doi: 10.48550/arxiv.1310.2685 · pith_short_12: BJSCHU6FZJJH · pith_short_16: BJSCHU6FZJJHJSKG · pith_short_8: BJSCHU6F

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/BJSCHU6FZJJHJSKGR5PGW26BNP \
  | 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: 0a6423d3c5ca5274c9468f5e6b6bc16bdd1fcce3d1b9e343a17aff94a115d49f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82a9ac71e730453494031e1ada4dc0df87328d75c9c99ba9f27fa962c5302a27",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2013-10-10T02:36:58Z",
    "title_canon_sha256": "c579bd07c29f5933d7dd0f118ea44b0a8300c6e5d5bd78aabf9ee1bddfca59e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.2685",
    "kind": "arxiv",
    "version": 2
  }
}