Pith Number

pith:7PPB5IY2

pith:2019:7PPB5IY2QQLXTEOXL7GHSFPIOT

not attested not anchored not stored refs pending

Symmetric cluster expansions with tensor networks

Bram Vanhecke, Frank Verstraete, Laurens Vanderstraeten

arxiv:1912.10512 v2 · 2019-12-22 · quant-ph · cond-mat.str-el · physics.comp-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{7PPB5IY2QQLXTEOXL7GHSFPIOT}

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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

DMRG Approach to Optimizing Two-Dimensional Tensor Networks

Receipt and verification

First computed	2026-07-05T02:19:25.644606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbde1ea31a84177991d75fcc7915e874ef8f42f11b01cf43d732e13d8bce360f

Aliases

arxiv: 1912.10512 · arxiv_version: 1912.10512v2 · doi: 10.48550/arxiv.1912.10512 · pith_short_12: 7PPB5IY2QQLX · pith_short_16: 7PPB5IY2QQLXTEOX · pith_short_8: 7PPB5IY2

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/7PPB5IY2QQLXTEOXL7GHSFPIOT \
  | 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: fbde1ea31a84177991d75fcc7915e874ef8f42f11b01cf43d732e13d8bce360f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c3e30ae53aaf1c7c07fbde3ba7ea02f6a517da1527bb628b8d3cc273127c555",
    "cross_cats_sorted": [
      "cond-mat.str-el",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-12-22T19:09:50Z",
    "title_canon_sha256": "4bd851c3bd680e824c4376719125feb9b906ca40c5941248616926136d266c31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.10512",
    "kind": "arxiv",
    "version": 2
  }
}