Pith Number

pith:W6IB6JRT

pith:2019:W6IB6JRTQ7KX4RQL3ESIKZ5EAA

not attested not anchored not stored refs pending

Pretty simple bounds on quantum state discrimination

Ashley Montanaro

arxiv:1908.08312 v2 · 2019-08-22 · 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{W6IB6JRTQ7KX4RQL3ESIKZ5EAA}

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	2026-07-05T00:17:54.705134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7901f263387d57e460bd9248567a400065f356737e1c0a166d8178f20f199a3

Aliases

arxiv: 1908.08312 · arxiv_version: 1908.08312v2 · doi: 10.48550/arxiv.1908.08312 · pith_short_12: W6IB6JRTQ7KX · pith_short_16: W6IB6JRTQ7KX4RQL · pith_short_8: W6IB6JRT

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/W6IB6JRTQ7KX4RQL3ESIKZ5EAA \
  | 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: b7901f263387d57e460bd9248567a400065f356737e1c0a166d8178f20f199a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5edca0b19a618a4f54ebf79fbb20028ad7a4c321ec2cbc2cd2b9d44d554e887b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-08-22T11:15:12Z",
    "title_canon_sha256": "d9653ca2a944f45d9ef5955ced6165592f77d4c2644fd2a312ced84ab065059c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08312",
    "kind": "arxiv",
    "version": 2
  }
}