Pith Number

pith:67J4SY4G

pith:2012:67J4SY4GTEPQZTXB2ZKYRUQGTQ

not attested not anchored not stored refs pending

A note on the discrete-time evolutions of quantum walk on a graph

Etsuo Segawa, Iwao Sato, Norio Konno, Yusuke Higuchi

arxiv:1207.4987 v4 · 2012-07-20 · math-ph · math.MP · 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{67J4SY4GTEPQZTXB2ZKYRUQGTQ}

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	2026-05-18T03:06:05.023231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7d3c96386991f0ccee1d65588d2069c0d77fae98f8b5401a53b82eaec91a937

Aliases

arxiv: 1207.4987 · arxiv_version: 1207.4987v4 · doi: 10.48550/arxiv.1207.4987 · pith_short_12: 67J4SY4GTEPQ · pith_short_16: 67J4SY4GTEPQZTXB · pith_short_8: 67J4SY4G

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/67J4SY4GTEPQZTXB2ZKYRUQGTQ \
  | 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: f7d3c96386991f0ccee1d65588d2069c0d77fae98f8b5401a53b82eaec91a937

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7ccc4755ddbfcf9ece67295ac67c5a1975cd67ddcdd119ec11b06e5e80fb280",
    "cross_cats_sorted": [
      "math.MP",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2012-07-20T16:03:28Z",
    "title_canon_sha256": "ad876e2021f1d2b71602b79029fb390c7347aa9c24781a42f274b1107f8d23c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4987",
    "kind": "arxiv",
    "version": 4
  }
}