Pith Number

pith:3C74T4UU

pith:2018:3C74T4UU6XL4QDCZE4EHZDZRPU

not attested not anchored not stored refs pending

Improved RF Measurements of SRF Cavity Quality Factors

((1) Fermi National Accelerator Laboratory, (2) Facility for Rare Isotope Beams), C. Contreras (2), D. Sergatskov (1), J.P. Holzbauer (1), W. Schappert (1), Y. Pischalnikov (1)

arxiv:1804.04747 v2 · 2018-04-12 · physics.acc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3C74T4UU6XL4QDCZE4EHZDZRPU}

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	2026-05-18T00:00:56.471113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8bfc9f294f5d7c80c5927087c8f317d2bd15efc81e788deb1649c4ea534c371

Aliases

arxiv: 1804.04747 · arxiv_version: 1804.04747v2 · doi: 10.48550/arxiv.1804.04747 · pith_short_12: 3C74T4UU6XL4 · pith_short_16: 3C74T4UU6XL4QDCZ · pith_short_8: 3C74T4UU

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/3C74T4UU6XL4QDCZE4EHZDZRPU \
  | 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: d8bfc9f294f5d7c80c5927087c8f317d2bd15efc81e788deb1649c4ea534c371

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6809a5e2c79adbc51d6ae089eaa859ac6913763d138df25f358f3b1bda0f63fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2018-04-12T23:22:05Z",
    "title_canon_sha256": "fd03a4f68dcb81fa678d57a475fda08bae6df7ad992a449925285eb2de4c4970"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04747",
    "kind": "arxiv",
    "version": 2
  }
}