Pith Number

pith:AALGBKUA

pith:2009:AALGBKUANF7VSJYGRXTJ5Z2P53

not attested not anchored not stored refs pending

Undulator-Based Production of Polarized Positrons

Achim Stahl, Achim Weidemann, Alexander A. Mikhailichenko, Andreas Schaelicke, Carsten Hast, Dieter R. Walz, Duncan Scott, Erez Reinherz-Aronis, Franz-Josef Decker, Gary Bower, Gideon Alexander, Gudrid Moortgat-Pick, Hermann Kolanoski, Jan W. Kovermann, John Barley, John C. Sheppard, Karim Laihem, Kirk T. McDonald, Klaus Floettmann, Klaus-Peter Schueler, Philipp Pahl, Rainer Pitthan, Ralph Dollan, Richard Iverson, Roman Poeschl, Sabine Riemann, Steven Berridge, Thomas Lohse, Thomas Schweizer, Vahagn Gharibyan, Vinod Bharadwaj, William Bugg, Yuri Batygin, Yuri Efremenko, Zenon Szalata

arxiv:0905.3066 v1 · 2009-05-19 · physics.ins-det · 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{AALGBKUANF7VSJYGRXTJ5Z2P53}

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	2026-05-18T02:13:38.685585Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

001660aa80697f5927068de69ee74feed39b00ec9e8e11a7cbae4103dae541dc

Aliases

arxiv: 0905.3066 · arxiv_version: 0905.3066v1 · doi: 10.48550/arxiv.0905.3066 · pith_short_12: AALGBKUANF7V · pith_short_16: AALGBKUANF7VSJYG · pith_short_8: AALGBKUA

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/AALGBKUANF7VSJYGRXTJ5Z2P53 \
  | 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: 001660aa80697f5927068de69ee74feed39b00ec9e8e11a7cbae4103dae541dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55265b26b1be0f4c1c603cdc61787f7905fd870fc3738dc378b1f404c9895f64",
    "cross_cats_sorted": [
      "physics.acc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2009-05-19T12:37:01Z",
    "title_canon_sha256": "d6f4e35d0e83d0746d74177a72b206c3e59a407561c7d893eb434bb9ab7a2499"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3066",
    "kind": "arxiv",
    "version": 1
  }
}