Pith Number

pith:5BCVBQJN

pith:2004:5BCVBQJN4O4HV2NKJYBRSFKMYH

not attested not anchored not stored refs pending

Optical realization of optimal unambiguous discrimination for pure and mixed quantum states

Aephraim M. Steinberg, J\'anos A. Bergou, Masoud Mohseni

arxiv:quant-ph/0401002 v2 · 2004-01-01 · 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{5BCVBQJN4O4HV2NKJYBRSFKMYH}

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	2026-05-18T01:08:45.927826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e84550c12de3b87ae9aa4e0319154cc1fde0b34ab6cd91f77915fa561d5144b7

Aliases

arxiv: quant-ph/0401002 · arxiv_version: quant-ph/0401002v2 · doi: 10.48550/arxiv.quant-ph/0401002 · pith_short_12: 5BCVBQJN4O4H · pith_short_16: 5BCVBQJN4O4HV2NK · pith_short_8: 5BCVBQJN

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/5BCVBQJN4O4HV2NKJYBRSFKMYH \
  | 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: e84550c12de3b87ae9aa4e0319154cc1fde0b34ab6cd91f77915fa561d5144b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c735f5594caaa5e9bfe55d314ac79e7b131c56fedff4ba2529eda7f2db95ca7f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-01-01T20:59:05Z",
    "title_canon_sha256": "418b935cb6acc78da92eb5e7226ee1fc00e76e9959ca3b2659987f4f89da61b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0401002",
    "kind": "arxiv",
    "version": 2
  }
}