Pith Number

pith:EJ4L5W3O

pith:2022:EJ4L5W3OGGHCOR2E6BK64SEJJJ

not attested not anchored not stored refs pending

On-the-go Reflectance Transformation Imaging with Ordinary Smartphones

Filippo Bergamasco, Mara Pistellato

arxiv:2210.09821 v1 · 2022-10-18 · cs.CV · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EJ4L5W3OGGHCOR2E6BK64SEJJJ}

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	2026-07-05T05:49:15.009784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2278bedb6e318e274744f055ee48894a4e591d9d004087724e66942a45ad877b

Aliases

arxiv: 2210.09821 · arxiv_version: 2210.09821v1 · doi: 10.48550/arxiv.2210.09821 · pith_short_12: EJ4L5W3OGGHC · pith_short_16: EJ4L5W3OGGHCOR2E · pith_short_8: EJ4L5W3O

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/EJ4L5W3OGGHCOR2E6BK64SEJJJ \
  | 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: 2278bedb6e318e274744f055ee48894a4e591d9d004087724e66942a45ad877b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fae00d56bdcf39cf6d66e4049bcfa0bf66429f52a2807d808991f6351632db4e",
    "cross_cats_sorted": [
      "cs.GR"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-10-18T13:00:22Z",
    "title_canon_sha256": "6b1ede0db566dd0f0c142f07964e1678d5960116b385d0f8f60064620a8659df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2210.09821",
    "kind": "arxiv",
    "version": 1
  }
}