Pith Number

pith:PZMTG2MQ

pith:2009:PZMTG2MQDR5BTHRX75EYNYVWSJ

not attested not anchored not stored refs pending

Tight bound on coherent-state-based entanglement generation over lossy channels

Koji Azuma, Masato Koashi, Naoya Sota, Nobuyuki Imoto

arxiv:0908.2735 v1 · 2009-08-19 · 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{PZMTG2MQDR5BTHRX75EYNYVWSJ}

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	2026-05-18T02:12:25.214513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e593369901c7a199e37ff4986e2b69271d8bbd20bd729b305235423827a6e84

Aliases

arxiv: 0908.2735 · arxiv_version: 0908.2735v1 · doi: 10.48550/arxiv.0908.2735 · pith_short_12: PZMTG2MQDR5B · pith_short_16: PZMTG2MQDR5BTHRX · pith_short_8: PZMTG2MQ

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/PZMTG2MQDR5BTHRX75EYNYVWSJ \
  | 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: 7e593369901c7a199e37ff4986e2b69271d8bbd20bd729b305235423827a6e84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98992f6a2c4aad4a9fc6391b0453a257a5017f9494b7932a182608f476ead0cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-08-19T12:15:11Z",
    "title_canon_sha256": "4026d5767d1c1918717d80ffa70bfef6aec7a372a27432792bfae6d2447b2442"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2735",
    "kind": "arxiv",
    "version": 1
  }
}