Pith Number

pith:ODKKQB5I

pith:2026:ODKKQB5IERTSHX6KMM3BTRUDIQ

not attested not anchored not stored refs pending

Explicit block-encodings for biharmonic boundary-value problems

Chuwen Ma, Zihao Tang

arxiv:2607.22396 v1 · 2026-07-24 · quant-ph · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ODKKQB5IERTSHX6KMM3BTRUDIQ}

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	2026-07-27T01:21:18.631511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70d4a807a8246723dfca633619c683441cba717d7ade1e2dd1bf04c6dd6a1007

Aliases

arxiv: 2607.22396 · arxiv_version: 2607.22396v1 · doi: 10.48550/arxiv.2607.22396 · pith_short_12: ODKKQB5IERTS · pith_short_16: ODKKQB5IERTSHX6K · pith_short_8: ODKKQB5I

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/ODKKQB5IERTSHX6KMM3BTRUDIQ \
  | 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: 70d4a807a8246723dfca633619c683441cba717d7ade1e2dd1bf04c6dd6a1007

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25bc259cdf4d184a7d7863782287c18d344c32f3c79f397d1728e4302b40d3b5",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-24T15:20:32Z",
    "title_canon_sha256": "8e670afef99bbc0e41061e250120eaf736bc6cfa6ac4a62165702d98aa5f7433"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.22396",
    "kind": "arxiv",
    "version": 1
  }
}