Pith Number

pith:RO47QULA

pith:2022:RO47QULAL2W3NOEBXS46UYSJPF

not attested not anchored not stored refs pending

SIGMA: A Structural Inconsistency Reducing Graph Matching Algorithm

Chao Zhang, Hui Qian, Nenggan Zheng, Weijie Liu

arxiv:2202.02797 v1 · 2022-02-06 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RO47QULAL2W3NOEBXS46UYSJPF}

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	2026-07-05T03:54:33.057348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bb9f851605eadb6b881bcb9ea62497946f17090552c52f99965f360943b67f8

Aliases

arxiv: 2202.02797 · arxiv_version: 2202.02797v1 · doi: 10.48550/arxiv.2202.02797 · pith_short_12: RO47QULAL2W3 · pith_short_16: RO47QULAL2W3NOEB · pith_short_8: RO47QULA

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/RO47QULAL2W3NOEBXS46UYSJPF \
  | 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: 8bb9f851605eadb6b881bcb9ea62497946f17090552c52f99965f360943b67f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8db97cdf20d4a2bfed806cffcb9c6d31dbe2a78208555d7929a97c914399cd9b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-02-06T15:18:37Z",
    "title_canon_sha256": "367a9456baad09985512f490a92aa45cff5886cc8748e4231b2e6509e99fb4f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.02797",
    "kind": "arxiv",
    "version": 1
  }
}