Pith Number

pith:VMNJFQ7G

pith:2018:VMNJFQ7GZR4PJPMNUXWLMVDSHJ

not attested not anchored not stored refs pending

Dephrasure channel and superadditivity of coherent information

Debbie Leung, Felix Leditzky, Graeme Smith

arxiv:1806.08327 v3 · 2018-06-21 · 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{VMNJFQ7GZR4PJPMNUXWLMVDSHJ}

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	2026-05-17T23:58:55.978103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab1a92c3e6cc78f4bd8da5ecb654723a6e76d2883b33fdd5a7e023ef9a9d26d4

Aliases

arxiv: 1806.08327 · arxiv_version: 1806.08327v3 · doi: 10.48550/arxiv.1806.08327 · pith_short_12: VMNJFQ7GZR4P · pith_short_16: VMNJFQ7GZR4PJPMN · pith_short_8: VMNJFQ7G

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/VMNJFQ7GZR4PJPMNUXWLMVDSHJ \
  | 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: ab1a92c3e6cc78f4bd8da5ecb654723a6e76d2883b33fdd5a7e023ef9a9d26d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c889b2576f40670ddd868d2bea0dc37abaa12bd87e839a9596d1aac81d7a2160",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-06-21T17:16:15Z",
    "title_canon_sha256": "ac5e9b400ead7af7487e8a0ea3c082611c46f38fac323ed48e34d6a78740a2ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.08327",
    "kind": "arxiv",
    "version": 3
  }
}