Pith Number

pith:B4FBQV2P

pith:2025:B4FBQV2PRMWCWKDOTWKUFTVGKY

not attested not anchored not stored refs pending

A Neural Quality Metric for BRDF Models

Behnaz Kavoosighafi, Ehsan Miandji, Jonas Unger, Rafal K. Mantiuk, Saghi Hajisharif

arxiv:2508.02131 v1 · 2025-08-04 · 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{B4FBQV2PRMWCWKDOTWKUFTVGKY}

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	2026-07-05T11:48:08.762371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f0a18574f8b2c2b286e9d9542cea6563e5324ed24478fca4d4e227068cdadff

Aliases

arxiv: 2508.02131 · arxiv_version: 2508.02131v1 · doi: 10.48550/arxiv.2508.02131 · pith_short_12: B4FBQV2PRMWC · pith_short_16: B4FBQV2PRMWCWKDO · pith_short_8: B4FBQV2P

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/B4FBQV2PRMWCWKDOTWKUFTVGKY \
  | 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: 0f0a18574f8b2c2b286e9d9542cea6563e5324ed24478fca4d4e227068cdadff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d994c247db1e8a500afcdfd3bab8b2aea5d0f8b8d3f0ca2c123eb38fd4758ffb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-08-04T07:24:46Z",
    "title_canon_sha256": "4d22f71ac08d363ef440ccc53aa7d534d7741bffc2dad89bf6adaec53e567234"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.02131",
    "kind": "arxiv",
    "version": 1
  }
}