Pith Number

pith:YYVS4EHX

pith:2019:YYVS4EHX6L6EZVLJHFZXSOYIXP

not attested not anchored not stored refs pending

Quantum walk inspired algorithm for graph similarity and isomorphism

Callum Schofield, Jingbo B. Wang, Yuying Li

arxiv:1902.11105 v1 · 2019-02-28 · quant-ph · cs.DS · physics.soc-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{YYVS4EHX6L6EZVLJHFZXSOYIXP}

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	2026-05-17T23:52:25.782540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c62b2e10f7f2fc4cd5693973793b08bbf5d5c4472a5d7ff136f602ced94c1044

Aliases

arxiv: 1902.11105 · arxiv_version: 1902.11105v1 · doi: 10.48550/arxiv.1902.11105 · pith_short_12: YYVS4EHX6L6E · pith_short_16: YYVS4EHX6L6EZVLJ · pith_short_8: YYVS4EHX

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/YYVS4EHX6L6EZVLJHFZXSOYIXP \
  | 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: c62b2e10f7f2fc4cd5693973793b08bbf5d5c4472a5d7ff136f602ced94c1044

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf626dc5094be29015a52c03203f3fc4179756f612267d842c2a5c27a8ab8fb6",
    "cross_cats_sorted": [
      "cs.DS",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-02-28T14:39:19Z",
    "title_canon_sha256": "c9b5df5649970ff75434192fe3765323dd9eceb845bef585b60384328ed1c51f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.11105",
    "kind": "arxiv",
    "version": 1
  }
}