Pith Number

pith:FHADIOKE

pith:2021:FHADIOKETHUMBCFRA6MRVRR4Z3

not attested not anchored not stored refs pending

Machine learning the nuclear mass

Caiwan Shen, Hongliang L\"u, Ling Liu, Qingfeng Li, Yongjia Wang, Zepeng Gao

arxiv:2105.02445 v1 · 2021-05-06 · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FHADIOKETHUMBCFRA6MRVRR4Z3}

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	2026-07-05T07:13:18.424383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29c034394499e8c088b107991ac63ccefdaf2fd4a546a7f0a54487e15c6ef848

Aliases

arxiv: 2105.02445 · arxiv_version: 2105.02445v1 · doi: 10.48550/arxiv.2105.02445 · pith_short_12: FHADIOKETHUM · pith_short_16: FHADIOKETHUMBCFR · pith_short_8: FHADIOKE

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/FHADIOKETHUMBCFRA6MRVRR4Z3 \
  | 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: 29c034394499e8c088b107991ac63ccefdaf2fd4a546a7f0a54487e15c6ef848

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4175037e250fa81ef27c4695aa9e5d6b6e5c4c9cdb003f1af0d1060faf5f3ed8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2021-05-06T05:19:22Z",
    "title_canon_sha256": "409232e98a699e7fe0631ca7fa6ef487c61ab644852eb1aff538ddce5254435d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.02445",
    "kind": "arxiv",
    "version": 1
  }
}