Pith Number

pith:RQZEVH72

pith:2012:RQZEVH72PAEMDHSBU5AM4TLQEX

not attested not anchored not stored refs pending

The $\gamma^* \gamma^*\to\eta_c$ transition form factor

Dmitri Melikhov, Wolfgang Lucha

arxiv:1205.4587 v1 · 2012-05-21 · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RQZEVH72PAEMDHSBU5AM4TLQEX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:51:36.531598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c324a9ffa7808c19e41a740ce4d7025d265aaeb53f7a24a99f3ec95a068f0ba

Aliases

arxiv: 1205.4587 · arxiv_version: 1205.4587v1 · doi: 10.48550/arxiv.1205.4587 · pith_short_12: RQZEVH72PAEM · pith_short_16: RQZEVH72PAEMDHSB · pith_short_8: RQZEVH72

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/RQZEVH72PAEMDHSBU5AM4TLQEX \
  | 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: 8c324a9ffa7808c19e41a740ce4d7025d265aaeb53f7a24a99f3ec95a068f0ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7c75a03592c9e261e95839d22d6d7db61e87ebee0b1caabe9776d306b7baa51",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2012-05-21T13:02:55Z",
    "title_canon_sha256": "6330205ac513ba436cfcadbefbb48c5e32864c9702aa36329dfcc97d78bf78fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4587",
    "kind": "arxiv",
    "version": 1
  }
}