Pith Number

pith:ORZ35DO5

pith:1999:ORZ35DO5BMEZCABWFTW6IZRPNO

not attested not anchored not stored refs pending

History and Physics of the Klein Paradox

A Calogeracos, N Dombey

arxiv:quant-ph/9905076 v1 · 1999-05-24 · quant-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{ORZ35DO5BMEZCABWFTW6IZRPNO}

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	2026-07-04T16:15:42.269614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7473be8ddd0b099100362cede4662f6bbe0a911d2c5d69f0bc10e2e9a9243908

Aliases

arxiv: quant-ph/9905076 · arxiv_version: quant-ph/9905076v1 · doi: 10.48550/arxiv.quant-ph/9905076 · pith_short_12: ORZ35DO5BMEZ · pith_short_16: ORZ35DO5BMEZCABW · pith_short_8: ORZ35DO5

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/ORZ35DO5BMEZCABWFTW6IZRPNO \
  | 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: 7473be8ddd0b099100362cede4662f6bbe0a911d2c5d69f0bc10e2e9a9243908

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e64caf65faeff20fbd6c4b2088576008b455617ed2a22514c31457f2c09a96fd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1999-05-24T14:04:45Z",
    "title_canon_sha256": "4f44955261c29a48e3f412df57694788dc429f0cd03d2d7153ddcafe9fc8d06f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9905076",
    "kind": "arxiv",
    "version": 1
  }
}