Pith Number

pith:QSPXYSLR

pith:2025:QSPXYSLROHZ5QO3Q45J3JPIZ7T

not attested not anchored not stored refs pending

An Iterative PDE Based Illumination Restoration Scheme for Image Enhancement

Dragos-Patru Covei

arxiv:2506.12560 v1 · 2025-06-14 · math.AP · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QSPXYSLROHZ5QO3Q45J3JPIZ7T}

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	2026-07-05T11:21:55.295787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

849f7c497171f3d83b70e753b4bd19fce83471e74bcb89bba73509ddd492c5bf

Aliases

arxiv: 2506.12560 · arxiv_version: 2506.12560v1 · doi: 10.48550/arxiv.2506.12560 · pith_short_12: QSPXYSLROHZ5 · pith_short_16: QSPXYSLROHZ5QO3Q · pith_short_8: QSPXYSLR

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/QSPXYSLROHZ5QO3Q45J3JPIZ7T \
  | 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: 849f7c497171f3d83b70e753b4bd19fce83471e74bcb89bba73509ddd492c5bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e0f9ac9c516ccbee4674ae4c07618a41902f977ee47eab5cd453b733169efa2",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2025-06-14T16:03:52Z",
    "title_canon_sha256": "6966bc0d0b65b551e5f82c562346260ded1c163f2bade388f619c19baec1936f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.12560",
    "kind": "arxiv",
    "version": 1
  }
}