Pith Number

pith:H4FWECYA

pith:2015:H4FWECYA5SUWZXDY4JY2D4OO3H

not attested not anchored not stored refs pending

Study of the element abundances in HD 140283: the abundance robustness of the weak r- and main r-process stars

Bo Zhang, Ping Niu, Wenyuan Cui

arxiv:1511.04666 v1 · 2015-11-15 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H4FWECYA5SUWZXDY4JY2D4OO3H}

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	2026-05-18T01:26:52.076308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f0b620b00eca96cdc78e271a1f1ced9e503120604ae08b6fbb5b4ceda90d3e3

Aliases

arxiv: 1511.04666 · arxiv_version: 1511.04666v1 · doi: 10.48550/arxiv.1511.04666 · pith_short_12: H4FWECYA5SUW · pith_short_16: H4FWECYA5SUWZXDY · pith_short_8: H4FWECYA

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/H4FWECYA5SUWZXDY4JY2D4OO3H \
  | 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: 3f0b620b00eca96cdc78e271a1f1ced9e503120604ae08b6fbb5b4ceda90d3e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f845e7098f29a714d128f1b5a3c5a67a4a93f6a64fd157b5464621173ff307e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-11-15T06:36:49Z",
    "title_canon_sha256": "0d011035b8cb51435f19587c98d36edcd6b0472ca26931cc9908048b7c2769fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.04666",
    "kind": "arxiv",
    "version": 1
  }
}