Pith Number

pith:DHQYSA3K

pith:2013:DHQYSA3KDAZL6XZRFUIQOWSN7W

not attested not anchored not stored refs pending

A table-top laser-based source of femtosecond, collimated, ultra-relativistic positron beams

A. Di Piazza, A. G. R. Thomas, A. Maksimchuk, B. Dromey, B. X. Hou, C. H. Keit, G. Sarri, J. A. Nees, K. Krushelnick, M. E. Dieckmann, M. Vargas, M. Zepf, V. Chvykov, V. Yanovsky, W. Schumaker, Z. H. He

arxiv:1304.5379 v1 · 2013-04-19 · physics.acc-ph · hep-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DHQYSA3KDAZL6XZRFUIQOWSN7W}

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	2026-05-18T01:50:24.590225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19e189036a1832bf5f312d11075a4dfdb743cea3aea572467ac13b81de6761b6

Aliases

arxiv: 1304.5379 · arxiv_version: 1304.5379v1 · doi: 10.48550/arxiv.1304.5379 · pith_short_12: DHQYSA3KDAZL · pith_short_16: DHQYSA3KDAZL6XZR · pith_short_8: DHQYSA3K

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/DHQYSA3KDAZL6XZRFUIQOWSN7W \
  | 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: 19e189036a1832bf5f312d11075a4dfdb743cea3aea572467ac13b81de6761b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c482af9b0ab9bfbd480235a2232a0117bd2d59e54d35deb07f334a0b97dcf0ac",
    "cross_cats_sorted": [
      "hep-ex"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2013-04-19T11:47:14Z",
    "title_canon_sha256": "34b1d6d8393dd7e71bb67a61166feafc0cc2974f201149a6db47d86cb71d7fb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5379",
    "kind": "arxiv",
    "version": 1
  }
}