Pith Number

pith:A5K2PFLG

pith:2005:A5K2PFLGGD736CLKB5PPKBBYSW

not attested not anchored not stored refs pending

No-relationship between impossibility of faster-than-light quantum communication and distinction of ensembles with the same density matrix

Chuan Wang, Gui Lu Long, Yang Sun

arxiv:quant-ph/0506047 v2 · 2005-06-06 · quant-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A5K2PFLGGD736CLKB5PPKBBYSW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:37:57.747527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0755a7956630ffbf096a0f5ef5043895a5faaffb7bf2e6031682c7de91b339d3

Aliases

arxiv: quant-ph/0506047 · arxiv_version: quant-ph/0506047v2 · doi: 10.48550/arxiv.quant-ph/0506047 · pith_short_12: A5K2PFLGGD73 · pith_short_16: A5K2PFLGGD736CLK · pith_short_8: A5K2PFLG

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/A5K2PFLGGD736CLKB5PPKBBYSW \
  | 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: 0755a7956630ffbf096a0f5ef5043895a5faaffb7bf2e6031682c7de91b339d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b11d624653f44205cdf473f7800f83a745b70914d9293d061a7a1bb5655d740",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-06-06T13:16:18Z",
    "title_canon_sha256": "e354b6cd12de4f71767a3dead29dd589bebc07236fe5df6bca64ca34b99ffff4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0506047",
    "kind": "arxiv",
    "version": 2
  }
}