Pith Number

pith:MSGBBEA4

pith:2014:MSGBBEA4WC2JQ2FBZKP4ZTAGAQ

not attested not anchored not stored refs pending

Conjugate degradable channels: A new class of quantum channels with a tractable quantum capacity formula

Kamil Bradler

arxiv:1407.3942 v4 · 2014-07-15 · 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{MSGBBEA4WC2JQ2FBZKP4ZTAGAQ}

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	2026-05-18T01:36:31.559830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

648c10901cb0b49868a1ca9fcccc0604396a7efa4ecd4f1432c88b9348e8a8af

Aliases

arxiv: 1407.3942 · arxiv_version: 1407.3942v4 · doi: 10.48550/arxiv.1407.3942 · pith_short_12: MSGBBEA4WC2J · pith_short_16: MSGBBEA4WC2JQ2FB · pith_short_8: MSGBBEA4

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/MSGBBEA4WC2JQ2FBZKP4ZTAGAQ \
  | 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: 648c10901cb0b49868a1ca9fcccc0604396a7efa4ecd4f1432c88b9348e8a8af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "316b568f61ac6b67a3fb442a46a800d802e18dd8c0f8115222beedbfe9005a49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-07-15T11:16:03Z",
    "title_canon_sha256": "060f71a8965bc94c2b07b355c70ff771efc72446a196ca967af939325972b4e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.3942",
    "kind": "arxiv",
    "version": 4
  }
}