Pith Number

pith:NTFZYYPR

pith:2004:NTFZYYPRNH4WWGPHWWQW5C5ZYD

not attested not anchored not stored refs pending

Focusing of Parametric X-ray Radiation from a Bent Crystal

A.V. Shchagin

arxiv:physics/0404137 v1 · 2004-04-29 · 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{NTFZYYPRNH4WWGPHWWQW5C5ZYD}

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	2026-05-18T01:38:08.445680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ccb9c61f169f96b19e7b5a16e8bb9c0f2899ef051a979922538d359de86533d

Aliases

arxiv: physics/0404137 · arxiv_version: physics/0404137v1 · doi: 10.48550/arxiv.physics/0404137 · pith_short_12: NTFZYYPRNH4W · pith_short_16: NTFZYYPRNH4WWGPH · pith_short_8: NTFZYYPR

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/NTFZYYPRNH4WWGPHWWQW5C5ZYD \
  | 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: 6ccb9c61f169f96b19e7b5a16e8bb9c0f2899ef051a979922538d359de86533d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcbcb2fd7e807051e76cd5d51e37c97c648147bb380e06f0f8fa0c1235ddeaf8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2004-04-29T17:38:58Z",
    "title_canon_sha256": "ed73eaa1345a5d18eedd8d8f01016aea572c11bd6b0a93f5b1ba11122fa2c403"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0404137",
    "kind": "arxiv",
    "version": 1
  }
}