Pith Number

pith:3UM2LAMG

pith:2011:3UM2LAMGYFHE6UOP6WQYBLRYTX

not attested not anchored not stored refs pending

Improvement of the crossed undulator design for effective circular polarization control in X-ray FELs

Evgeni Saldin, Gianluca Geloni, Vitali Kocharyan

arxiv:1101.4085 v1 · 2011-01-21 · 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{3UM2LAMGYFHE6UOP6WQYBLRYTX}

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	2026-05-18T04:31:12.709161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd19a58186c14e4f51cff5a180ae389df04e5e2e8762d3316989a6540cd905d4

Aliases

arxiv: 1101.4085 · arxiv_version: 1101.4085v1 · doi: 10.48550/arxiv.1101.4085 · pith_short_12: 3UM2LAMGYFHE · pith_short_16: 3UM2LAMGYFHE6UOP · pith_short_8: 3UM2LAMG

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/3UM2LAMGYFHE6UOP6WQYBLRYTX \
  | 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: dd19a58186c14e4f51cff5a180ae389df04e5e2e8762d3316989a6540cd905d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81ccc05394807263ff1af4d34e2f659ddc59253b6f2f72338fb962db7117fc54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2011-01-21T08:36:19Z",
    "title_canon_sha256": "f5cfbd67d62d96b6c452330688b36a57d4e3b2307906864793ce6713ff995128"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.4085",
    "kind": "arxiv",
    "version": 1
  }
}