Pith Number

pith:L4S6XEWH

pith:2026:L4S6XEWHYJBIYDUE3REGTY5H4O

not attested not anchored not stored refs pending

The Optics of Shadow Bands

Branko Sretenovi\'c

arxiv:2606.28366 v1 · 2026-06-14 · physics.pop-ph · astro-ph.SR · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L4S6XEWHYJBIYDUE3REGTY5H4O}

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	2026-06-30T00:15:12.081977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f25eb92c7c2428c0e84dc4869e3a7e3860dc4108d515dcd14819a80353c4389

Aliases

arxiv: 2606.28366 · arxiv_version: 2606.28366v1 · doi: 10.48550/arxiv.2606.28366 · pith_short_12: L4S6XEWHYJBI · pith_short_16: L4S6XEWHYJBIYDUE · pith_short_8: L4S6XEWH

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/L4S6XEWHYJBIYDUE3REGTY5H4O \
  | 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: 5f25eb92c7c2428c0e84dc4869e3a7e3860dc4108d515dcd14819a80353c4389

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc6cf044ba1f777a5ff3621736177c884cca8acb547c02370f93f30c7fd5d8ba",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2026-06-14T17:00:37Z",
    "title_canon_sha256": "a85be82c0adbff5fac857cdc690f5fbc37de04afa712ad8343be16562debbdb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.28366",
    "kind": "arxiv",
    "version": 1
  }
}