Pith Number

pith:GS7CCHDB

pith:2017:GS7CCHDB76Q5KDWLJTOPWFCXKQ

not attested not anchored not stored refs pending

Scratch iridescence: Wave-optical rendering of diffractive surface structure

Matthias B. Hullin, Sebastian Werner, Wenzel Jakob, Zdravko Velinov

arxiv:1705.06086 v1 · 2017-05-17 · 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{GS7CCHDB76Q5KDWLJTOPWFCXKQ}

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	2026-05-18T00:44:19.050842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34be211c61ffa1d50ecb4cdcfb1457541df49060b8c4b9be2026efe694f5b396

Aliases

arxiv: 1705.06086 · arxiv_version: 1705.06086v1 · doi: 10.48550/arxiv.1705.06086 · pith_short_12: GS7CCHDB76Q5 · pith_short_16: GS7CCHDB76Q5KDWL · pith_short_8: GS7CCHDB

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/GS7CCHDB76Q5KDWLJTOPWFCXKQ \
  | 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: 34be211c61ffa1d50ecb4cdcfb1457541df49060b8c4b9be2026efe694f5b396

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b293c9b223f61bb6cd5394ccf22a3730fd1ac139f973e954be375df6f2d4bb41",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2017-05-17T10:59:29Z",
    "title_canon_sha256": "af78bed2892e1a39ac2fe9a0cf44f60ccdfcd05eb8819710b2f4eaf295755c1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06086",
    "kind": "arxiv",
    "version": 1
  }
}