Pith Number

pith:UBHLRJXU

pith:2008:UBHLRJXUVTT43BJ4YA7BE4KMDG

not attested not anchored not stored refs pending

Discrimination of two channels by adaptive methods and its application to quantum system

Masahito Hayashi

arxiv:0804.0686 v1 · 2008-04-04 · quant-ph · cs.IT · math.IT · math.ST · stat.TH

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UBHLRJXUVTT43BJ4YA7BE4KMDG}

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	2026-05-18T04:19:32.740898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a04eb8a6f4ace7cd853cc03e12714c19bd510d89d037f585318075ddbac46dfd

Aliases

arxiv: 0804.0686 · arxiv_version: 0804.0686v1 · doi: 10.48550/arxiv.0804.0686 · pith_short_12: UBHLRJXUVTT4 · pith_short_16: UBHLRJXUVTT43BJ4 · pith_short_8: UBHLRJXU

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/UBHLRJXUVTT43BJ4YA7BE4KMDG \
  | 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: a04eb8a6f4ace7cd853cc03e12714c19bd510d89d037f585318075ddbac46dfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "571ebaec3c2a8febad98c78222eb16bffede6a3a8ea6e78d411d31ca4a1c4339",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-04-04T10:16:40Z",
    "title_canon_sha256": "2e0bf42f59dd8de0f999e78e0dfdcf329048d4f6948c7a476746e2ec7206a555"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.0686",
    "kind": "arxiv",
    "version": 1
  }
}