Pith Number

pith:EIZNK2YW

pith:2000:EIZNK2YW4ZE3YP2RRYCHH2DWUF

not attested not anchored not stored refs pending

Does Anti-Parallel Spin Always Contain more Information ?

Anirban Roy, Sibasish Ghosh, Ujjwal Sen

arxiv:quant-ph/0004071 v2 · 2000-04-18 · 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{EIZNK2YW4ZE3YP2RRYCHH2DWUF}

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	2026-07-04T16:22:20.431982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2232d56b16e649bc3f518e0473e876a140e6c53f543c247ad75559593307d621

Aliases

arxiv: quant-ph/0004071 · arxiv_version: quant-ph/0004071v2 · doi: 10.48550/arxiv.quant-ph/0004071 · pith_short_12: EIZNK2YW4ZE3 · pith_short_16: EIZNK2YW4ZE3YP2R · pith_short_8: EIZNK2YW

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/EIZNK2YW4ZE3YP2RRYCHH2DWUF \
  | 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: 2232d56b16e649bc3f518e0473e876a140e6c53f543c247ad75559593307d621

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2af4b34cdd202c504dda1654ecbb717b4b8338ccb9f4410c2c2594fd404f8b22",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2000-04-18T15:23:43Z",
    "title_canon_sha256": "09302e6b9b4872c40ec2bf6a43943d786f8494011438cae374322c4da1272423"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0004071",
    "kind": "arxiv",
    "version": 2
  }
}