Pith Number

pith:UP6FSKCU

pith:2017:UP6FSKCUAV64OVLY2XPMEBXDY2

not attested not anchored not stored refs pending

Energy spread of ultracold electron bunches extracted from a laser cooled gas

E.J.D. Vredenbregt, J.G.H. Franssen, J.M. Kromwijk, O.J. Luiten

arxiv:1709.07673 v2 · 2017-09-22 · physics.atom-ph · physics.plasm-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{UP6FSKCUAV64OVLY2XPMEBXDY2}

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	2026-05-18T00:25:53.049260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3fc592854057dc75578d5dec206e3c686a6cd0205c161bae420f0c90f04c724

Aliases

arxiv: 1709.07673 · arxiv_version: 1709.07673v2 · doi: 10.48550/arxiv.1709.07673 · pith_short_12: UP6FSKCUAV64 · pith_short_16: UP6FSKCUAV64OVLY · pith_short_8: UP6FSKCU

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/UP6FSKCUAV64OVLY2XPMEBXDY2 \
  | 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: a3fc592854057dc75578d5dec206e3c686a6cd0205c161bae420f0c90f04c724

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ec07256535667ae7ef5f87a81d733a6b5cfd20ae38b36a32b0320f1443aec06",
    "cross_cats_sorted": [
      "physics.plasm-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2017-09-22T10:11:13Z",
    "title_canon_sha256": "bc5421c83ab8a857c44c7f8d3318e1d55057307b7a742074f22943a168318463"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07673",
    "kind": "arxiv",
    "version": 2
  }
}