Pith Number

pith:3EGJC7VX

pith:2026:3EGJC7VXWEAGKCB63Y5RYXQI2E

not attested not anchored not stored refs pending

MirrorPPR: Exemplar-Based Portrait Photo Retouching

Fengpei Yu, Jiachun Jin, Siqi Kou, Yitao Jian, Zheng Li, Zhihong Liu, Zhijie Deng

arxiv:2606.29308 v1 · 2026-06-28 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3EGJC7VXWEAGKCB63Y5RYXQI2E}

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	2026-06-30T01:18:00.994589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d90c917eb7b10065083ede3b1c5e08d13eb48679c7cff785589d235b64940931

Aliases

arxiv: 2606.29308 · arxiv_version: 2606.29308v1 · doi: 10.48550/arxiv.2606.29308 · pith_short_12: 3EGJC7VXWEAG · pith_short_16: 3EGJC7VXWEAGKCB6 · pith_short_8: 3EGJC7VX

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/3EGJC7VXWEAGKCB63Y5RYXQI2E \
  | 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: d90c917eb7b10065083ede3b1c5e08d13eb48679c7cff785589d235b64940931

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "947d47fe6c6c08ef530be811b0a07e2e6050b5873bb800b032e9572244046eaa",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-06-28T10:07:38Z",
    "title_canon_sha256": "02a0fe7ac163e6343210b393fbd68dc7469f717585ad9626a434eb6ad51031c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.29308",
    "kind": "arxiv",
    "version": 1
  }
}