Pith Number

pith:YVN2JGHI

pith:2022:YVN2JGHITFO6ILVTFHG5PC7QZB

not attested not anchored not stored refs pending

Pik-Fix: Restoring and Colorizing Old Photos

Alan Bovik, Hongkai Yu, Jiaqi Ma, Jinlong Li, Runsheng Xu, Xiaoyu Dong, Yuanqi Du, Zhengzhong Tu, Zibo Meng

arxiv:2205.01902 v3 · 2022-05-04 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YVN2JGHITFO6ILVTFHG5PC7QZB}

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	2026-07-05T05:03:51.058566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c55ba498e8995de42eb329cdd78bf0c846011ab54fa72fe1973acab42ea6b023

Aliases

arxiv: 2205.01902 · arxiv_version: 2205.01902v3 · doi: 10.48550/arxiv.2205.01902 · pith_short_12: YVN2JGHITFO6 · pith_short_16: YVN2JGHITFO6ILVT · pith_short_8: YVN2JGHI

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/YVN2JGHITFO6ILVTFHG5PC7QZB \
  | 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: c55ba498e8995de42eb329cdd78bf0c846011ab54fa72fe1973acab42ea6b023

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82343628ca92001bd3861d5f9b715858f17d50d7fb199355bbe407fa1eebd6d9",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-05-04T05:46:43Z",
    "title_canon_sha256": "89193637b5a5b6d7905ff54b1dfc30d151cf30d015ed2be6a585eac680c84aeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.01902",
    "kind": "arxiv",
    "version": 3
  }
}