Pith Number

pith:DUJBHHW4

pith:2019:DUJBHHW4VLNKF3IFVQJ33M4LWM

not attested not anchored not stored refs pending

Bayesian optimization of a free-electron laser

Adam Egger, Adi Hanuka, Auralee Edelen, Daniel Ratner, Dylan Kennedy, Jane Shtalenkova, Joseph Duris, Tyler Cope

arxiv:1909.05963 v1 · 2019-09-12 · physics.acc-ph · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DUJBHHW4VLNKF3IFVQJ33M4LWM}

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	2026-07-05T00:51:31.075829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d12139edcaadaa2ed05ac13bdb38bb33d9226ca5a54b3090edec60879416832

Aliases

arxiv: 1909.05963 · arxiv_version: 1909.05963v1 · doi: 10.48550/arxiv.1909.05963 · pith_short_12: DUJBHHW4VLNK · pith_short_16: DUJBHHW4VLNKF3IF · pith_short_8: DUJBHHW4

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/DUJBHHW4VLNKF3IFVQJ33M4LWM \
  | 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: 1d12139edcaadaa2ed05ac13bdb38bb33d9226ca5a54b3090edec60879416832

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c875eaf46de1fc755da60537649e303a9a280b4ead2a45f5a6a2ce1303adab1c",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2019-09-12T21:54:47Z",
    "title_canon_sha256": "a87135dd0e899a3bb6538e14e06d83796548b6d21ddf3c1432e217abe8d42d35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.05963",
    "kind": "arxiv",
    "version": 1
  }
}