Pith Number

pith:YTBPKKQX

pith:2009:YTBPKKQX6MPBY3G4RFNG6YGKVO

not attested not anchored not stored refs pending

Homogeneous MERA states: an information theoretical analysis

M. Rizzi, R. Fazio, S. Montangero, V. Giovannetti

arxiv:0901.4424 v1 · 2009-01-28 · 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{YTBPKKQX6MPBY3G4RFNG6YGKVO}

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	2026-05-18T02:14:55.490672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4c2f52a17f31e1c6cdc895a6f60caab8f7748fc3ac7b26351f69b981c351d07

Aliases

arxiv: 0901.4424 · arxiv_version: 0901.4424v1 · doi: 10.48550/arxiv.0901.4424 · pith_short_12: YTBPKKQX6MPB · pith_short_16: YTBPKKQX6MPBY3G4 · pith_short_8: YTBPKKQX

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/YTBPKKQX6MPBY3G4RFNG6YGKVO \
  | 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: c4c2f52a17f31e1c6cdc895a6f60caab8f7748fc3ac7b26351f69b981c351d07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7257c33023b95c18a75e02e60279d54089a41acd2fa64829b26bdb8bde702dd5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-01-28T09:56:09Z",
    "title_canon_sha256": "57992a776aa2ff62b7042630937018f26d3856bdad2bd59c251ab12c23771451"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4424",
    "kind": "arxiv",
    "version": 1
  }
}