Pith Number

pith:C7JUJ7IP

pith:2000:C7JUJ7IPRWXKY6TA3G4MBBVDHN

not attested not anchored not stored refs pending

Experimental Demonstration of Optimal Unambiguous State Discrimination

Anthony Chefles, Erling Riis, Roger B. M. Clarke, Stephen M. Barnett

arxiv:quant-ph/0007063 v1 · 2000-07-19 · 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{C7JUJ7IPRWXKY6TA3G4MBBVDHN}

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	2026-05-18T01:05:06.828402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17d344fd0f8daeac7a60d9b8c086a33b69dd5aee57354438b92007f436331b5d

Aliases

arxiv: quant-ph/0007063 · arxiv_version: quant-ph/0007063v1 · doi: 10.48550/arxiv.quant-ph/0007063 · pith_short_12: C7JUJ7IPRWXK · pith_short_16: C7JUJ7IPRWXKY6TA · pith_short_8: C7JUJ7IP

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/C7JUJ7IPRWXKY6TA3G4MBBVDHN \
  | 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: 17d344fd0f8daeac7a60d9b8c086a33b69dd5aee57354438b92007f436331b5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7de3b9ee1b25a725ae033a8d1f84439b6c4977f0d551f34e89721bae881c338c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2000-07-19T17:09:56Z",
    "title_canon_sha256": "6f63c886839fee126caa6f19fb188e6ec6ee2c24f009ed77407524c4bc0a45e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0007063",
    "kind": "arxiv",
    "version": 1
  }
}