Pith Number

pith:F5KQJNDP

pith:2018:F5KQJNDPFK4KILDPJC7D4KS65C

not attested not anchored not stored refs pending

The odd-isotope fractions of Barium in the strongly r-process enhanced (r-II) stars

Bo Zhang, Gang Zhao, Jianrong Shi, Wenyuan Cui, Xiaohua Jiang

arxiv:1801.07919 v1 · 2018-01-24 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F5KQJNDPFK4KILDPJC7D4KS65C}

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	2026-05-18T00:25:10.542350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f5504b46f2ab8a42c6f48be3e2a5ee890e3e8fedb4da89d3000690894b88fa5

Aliases

arxiv: 1801.07919 · arxiv_version: 1801.07919v1 · doi: 10.48550/arxiv.1801.07919 · pith_short_12: F5KQJNDPFK4K · pith_short_16: F5KQJNDPFK4KILDP · pith_short_8: F5KQJNDP

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/F5KQJNDPFK4KILDPJC7D4KS65C \
  | 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: 2f5504b46f2ab8a42c6f48be3e2a5ee890e3e8fedb4da89d3000690894b88fa5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce4d9d96d0e0810bcba15e0b43df5f5226cbfc3ec60238246694fd27cbd6b561",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-01-24T11:02:51Z",
    "title_canon_sha256": "61dbe4454340f82fb9b34b1abdd2b6e724591590fc9890f1eb5e0cec3bc02fe2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07919",
    "kind": "arxiv",
    "version": 1
  }
}