Pith Number

pith:URRFDBDW

pith:2025:URRFDBDWG2MJJ47F3WVG7C6Y7U

not attested not anchored not stored refs pending

Quantum algorithm for edge detection in digital grayscale images

Alok Shukla, Mohit Rohida, Prakash Vedula

arxiv:2507.06642 v1 · 2025-07-09 · 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{URRFDBDWG2MJJ47F3WVG7C6Y7U}

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	2026-07-05T11:34:19.996747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a462518476369894f3e5ddaa6f8bd8fd03fd12245818956c85cf62dbc01540c2

Aliases

arxiv: 2507.06642 · arxiv_version: 2507.06642v1 · doi: 10.48550/arxiv.2507.06642 · pith_short_12: URRFDBDWG2MJ · pith_short_16: URRFDBDWG2MJJ47F · pith_short_8: URRFDBDW

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/URRFDBDWG2MJJ47F3WVG7C6Y7U \
  | 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: a462518476369894f3e5ddaa6f8bd8fd03fd12245818956c85cf62dbc01540c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f36732ae96fed7abc9c5c52e693d19a5218b1b4c3326127df1cd21d303a4c372",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-07-09T08:14:37Z",
    "title_canon_sha256": "4df586b9fcce85b12ecc1d4147b7b38c4174d03f3c1c35add44c887be8f1fd3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.06642",
    "kind": "arxiv",
    "version": 1
  }
}