Pith Number

pith:FF56Y7DS

pith:2019:FF56Y7DSZA4T7F27VOVN3YS4ZY

not attested not anchored not stored refs pending

Operation of PAL-XFEL LLRF

Chang-Ki Min, Donghyun Na, Heung-Sik Kang, Heung-Soo Lee, Jinyul Hu, Juho Hong, Kwanghoon Kim, Sang-Hee Kim, SeongHoon Jung, Soung-soo Park, Yong Jung Park

arxiv:1909.12091 v2 · 2019-09-26 · 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{FF56Y7DSZA4T7F27VOVN3YS4ZY}

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	2026-07-05T00:10:04.664759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

297bec7c72c8393f975fabaadde25cce0a56c709a4fefa398522a27da262e894

Aliases

arxiv: 1909.12091 · arxiv_version: 1909.12091v2 · doi: 10.48550/arxiv.1909.12091 · pith_short_12: FF56Y7DSZA4T · pith_short_16: FF56Y7DSZA4T7F27 · pith_short_8: FF56Y7DS

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/FF56Y7DSZA4T7F27VOVN3YS4ZY \
  | 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: 297bec7c72c8393f975fabaadde25cce0a56c709a4fefa398522a27da262e894

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "729abb143542fe1ce939959fd974405754721bb7f08ffa864cc106aeaa2558af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2019-09-26T13:37:51Z",
    "title_canon_sha256": "67c9f71b9d3d8e7aa6ee42c376322245d1f2702b6da79491d431328969b8a1c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.12091",
    "kind": "arxiv",
    "version": 2
  }
}