Pith Number

pith:R3UH22CG

pith:2015:R3UH22CGJAGISEPYLNXRZWASXE

not attested not anchored not stored refs pending

Observation of the first iso-spin Charmonium-like State $Z_c(4020)$ }

Ai-Qiang Guo, Chun-Xu Yu, Qing-Ping Ji, Yu-Ping Guo, Zhi-yong Wang

arxiv:1504.02631 v1 · 2015-04-10 · hep-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R3UH22CGJAGISEPYLNXRZWASXE}

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	2026-05-18T01:20:46.637363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ee87d6846480c8911f85b6f1cd812b904ed7e186dd60c539446e17884c1e18f

Aliases

arxiv: 1504.02631 · arxiv_version: 1504.02631v1 · doi: 10.48550/arxiv.1504.02631 · pith_short_12: R3UH22CGJAGI · pith_short_16: R3UH22CGJAGISEPY · pith_short_8: R3UH22CG

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/R3UH22CGJAGISEPYLNXRZWASXE \
  | 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: 8ee87d6846480c8911f85b6f1cd812b904ed7e186dd60c539446e17884c1e18f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a35607261080dc756a34f5766e6ecd4ad9a99765bee07f4f4b3bf62085c1f0c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ex",
    "submitted_at": "2015-04-10T10:24:09Z",
    "title_canon_sha256": "657d11188a70c079445cbfdf52e2c822bde30804a1579985dfe25db836a7a4a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02631",
    "kind": "arxiv",
    "version": 1
  }
}