Pith Number

pith:JIKMHQMG

pith:2001:JIKMHQMGXF4PUKBMBEVFBRYYF5

not attested not anchored not stored refs pending

Quantum filter for non-local polarization properties of photonic qubits

Holger F. Hofmann, Shigeki Takeuchi

arxiv:quant-ph/0111001 v2 · 2001-11-01 · 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{JIKMHQMGXF4PUKBMBEVFBRYYF5}

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	2026-05-18T01:05:04.722306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a14c3c186b978fa282c092a50c7182f57d3b2c11a6e84f2e2ce46dec2a7710c

Aliases

arxiv: quant-ph/0111001 · arxiv_version: quant-ph/0111001v2 · doi: 10.48550/arxiv.quant-ph/0111001 · pith_short_12: JIKMHQMGXF4P · pith_short_16: JIKMHQMGXF4PUKBM · pith_short_8: JIKMHQMG

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/JIKMHQMGXF4PUKBMBEVFBRYYF5 \
  | 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: 4a14c3c186b978fa282c092a50c7182f57d3b2c11a6e84f2e2ce46dec2a7710c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2843a1cf3f4b6b49aef900308a96d49943d3622af91dbe8d857cbe34736c1413",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2001-11-01T00:59:26Z",
    "title_canon_sha256": "c97faf88a8a5239c28e97f13063bbbd859a5163ba83b6821bfe19d51a477ffce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0111001",
    "kind": "arxiv",
    "version": 2
  }
}