Pith Number

pith:7PRK4A7H

pith:2012:7PRK4A7H5ACOQGKEOXBEB7MC4K

not attested not anchored not stored refs pending

Quantum capacity of an amplitude-damping channel with memory

A. H. Toor, Nigum Arshed, Rabia Jahangir

arxiv:1207.5612 v3 · 2012-07-24 · 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{7PRK4A7H5ACOQGKEOXBEB7MC4K}

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	2026-05-18T00:41:13.506070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbe2ae03e7e804e8194475c240fd82e28197dcf8e94ed455f262e24a969236df

Aliases

arxiv: 1207.5612 · arxiv_version: 1207.5612v3 · doi: 10.48550/arxiv.1207.5612 · pith_short_12: 7PRK4A7H5ACO · pith_short_16: 7PRK4A7H5ACOQGKE · pith_short_8: 7PRK4A7H

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/7PRK4A7H5ACOQGKEOXBEB7MC4K \
  | 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: fbe2ae03e7e804e8194475c240fd82e28197dcf8e94ed455f262e24a969236df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb69971044fbd14ffcb78bda1f374f9d5380c8f24dc00b57510cb31bd3bfa0c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-07-24T08:10:31Z",
    "title_canon_sha256": "eb46fce30d0edf4dc33268ac029d0f8bfc22d2ad0ed14519e47d46b46154be02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5612",
    "kind": "arxiv",
    "version": 3
  }
}