Pith Number

pith:7RGTJJSB

pith:2010:7RGTJJSB3FLL3JIFQCFIFAKWGV

not attested not anchored not stored refs pending

The entropy puzzle and the quark combination model

Feng-Lan Shao, Jun Song, Qun Wang, Yu-Xin Liu, Zuo-Tang Liang

arxiv:1001.2801 v2 · 2010-01-16 · nucl-th

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

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	2026-05-18T02:33:49.651515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc4d34a641d956bda505808a828156355f2d9b54308fea6c2a9d270c15989b1d

Aliases

arxiv: 1001.2801 · arxiv_version: 1001.2801v2 · doi: 10.48550/arxiv.1001.2801 · pith_short_12: 7RGTJJSB3FLL · pith_short_16: 7RGTJJSB3FLL3JIF · pith_short_8: 7RGTJJSB

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/7RGTJJSB3FLL3JIFQCFIFAKWGV \
  | 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: fc4d34a641d956bda505808a828156355f2d9b54308fea6c2a9d270c15989b1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20c969f347ac7c1c054fce508c0e12a3016ca181c7e8fe348089b21f85e2079d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2010-01-16T03:13:26Z",
    "title_canon_sha256": "437785840ac0738ec894e7f2dab2aa3d75c42341c72e962c9d8295d750865845"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.2801",
    "kind": "arxiv",
    "version": 2
  }
}