Pith Number

pith:CYRRNY4O

pith:2022:CYRRNY4OPR5LIQ5DXJPRVTQEAF

not attested not anchored not stored refs pending

Density Matrix Renormalization Group Algorithm For Mixed Quantum States

Chu Guo

arxiv:2203.16350 v2 · 2022-03-30 · cond-mat.str-el · 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{CYRRNY4OPR5LIQ5DXJPRVTQEAF}

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	2026-07-05T04:27:55.078699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

162316e38e7c7ab443a3ba5f1ace0401724ce62818c562f7d4245bf214c842e3

Aliases

arxiv: 2203.16350 · arxiv_version: 2203.16350v2 · doi: 10.48550/arxiv.2203.16350 · pith_short_12: CYRRNY4OPR5L · pith_short_16: CYRRNY4OPR5LIQ5D · pith_short_8: CYRRNY4O

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/CYRRNY4OPR5LIQ5DXJPRVTQEAF \
  | 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: 162316e38e7c7ab443a3ba5f1ace0401724ce62818c562f7d4245bf214c842e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80add2097c63d5698ab9f0ec65317fa77de5756e1eddc360c1cb1472bd3e1cc0",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2022-03-30T14:29:31Z",
    "title_canon_sha256": "6269c87d28a9a570f3f215755709a0bd2619ea20e6c7b64a72ebdfc41a9ba076"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.16350",
    "kind": "arxiv",
    "version": 2
  }
}