Pith Number

pith:WV3ZBOYF

pith:2008:WV3ZBOYFBIB6FLWLSOL76UVLQE

not attested not anchored not stored refs pending

Spectrum conditions for symmetric extendible states

Geir Ove Myhr, Norbert L\"utkenhaus

arxiv:0812.3667 v1 · 2008-12-19 · 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{WV3ZBOYFBIB6FLWLSOL76UVLQE}

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.

Cited by

1 paper in Pith

Sharp Quantum Capacity Thresholds: Exponential Strong Converses for Degradable and Antidegradable Channels

Receipt and verification

First computed	2026-07-04T15:43:28.388007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b57790bb050a03e2aecb9397ff52ab812546e7b99bc2705715962db05af3acd0

Aliases

arxiv: 0812.3667 · arxiv_version: 0812.3667v1 · doi: 10.48550/arxiv.0812.3667 · pith_short_12: WV3ZBOYFBIB6 · pith_short_16: WV3ZBOYFBIB6FLWL · pith_short_8: WV3ZBOYF

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/WV3ZBOYFBIB6FLWLSOL76UVLQE \
  | 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: b57790bb050a03e2aecb9397ff52ab812546e7b99bc2705715962db05af3acd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f386b69872cd50b1ff1d9b9f7284e30b216097a47f69ca94749454fb83dcff17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-12-19T15:56:06Z",
    "title_canon_sha256": "8e5267e6624b3f3f47b78d74727aed76620493f15f59e64b7eacf159188c60c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.3667",
    "kind": "arxiv",
    "version": 1
  }
}