Pith Number

pith:FKHUJ2QZ

pith:2025:FKHUJ2QZL6UST4M2NB6E5IG2D4

not attested not anchored not stored refs pending

Matrix Inversion by Quantum Walk

Alastair Kay, Christino Tamon

arxiv:2508.06611 v1 · 2025-08-08 · 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{FKHUJ2QZL6UST4M2NB6E5IG2D4}

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	2026-07-05T11:51:03.509895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a8f44ea195fa929f19a687c4ea0da1f3e91fee6168b4b8c51d8b8cca3f405d4

Aliases

arxiv: 2508.06611 · arxiv_version: 2508.06611v1 · doi: 10.48550/arxiv.2508.06611 · pith_short_12: FKHUJ2QZL6US · pith_short_16: FKHUJ2QZL6UST4M2 · pith_short_8: FKHUJ2QZ

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/FKHUJ2QZL6UST4M2NB6E5IG2D4 \
  | 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: 2a8f44ea195fa929f19a687c4ea0da1f3e91fee6168b4b8c51d8b8cca3f405d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb4434456329f6fbac1345aa0a3dfc5481cfd67ac5fbe1bafb5bf21966529a21",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-08-08T18:00:05Z",
    "title_canon_sha256": "b7b66135575536f4de21c2a821860c391caaf2bd39aff09efb6fc65d258d592e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.06611",
    "kind": "arxiv",
    "version": 1
  }
}