Pith Number

pith:MBGYH2NL

pith:2011:MBGYH2NL72KWZG4BMGVPP56TKM

not attested not anchored not stored refs pending

Variational Numerical Renormalization Group: Bridging the gap between NRG and Density Matrix Renormalization Group

Frank Verstraete, Iztok Pizorn

arxiv:1102.1401 v2 · 2011-02-07 · quant-ph · cond-mat.str-el

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MBGYH2NL72KWZG4BMGVPP56TKM}

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	2026-05-18T03:25:14.866936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

604d83e9abfe956c9b8161aaf7f7d3533087ebca93714eee3da0467bfaf846b3

Aliases

arxiv: 1102.1401 · arxiv_version: 1102.1401v2 · doi: 10.48550/arxiv.1102.1401 · pith_short_12: MBGYH2NL72KW · pith_short_16: MBGYH2NL72KWZG4B · pith_short_8: MBGYH2NL

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/MBGYH2NL72KWZG4BMGVPP56TKM \
  | 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: 604d83e9abfe956c9b8161aaf7f7d3533087ebca93714eee3da0467bfaf846b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef72df5a684f1ce3f9ddf4fb8847ba59ecbe3395863522285747e095c925e1ef",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-02-07T20:01:06Z",
    "title_canon_sha256": "cd0b8ca7f5da275341d572b2d2b173809b336bc5189015ead47977e6149d778a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.1401",
    "kind": "arxiv",
    "version": 2
  }
}