Pith Number

pith:ADKTQ7DF

pith:2016:ADKTQ7DFL7ORKXZYWZ2MMZX2ED

not attested not anchored not stored refs pending

Is $n\sin\theta$ conserved along light path?

Mahdiyar Noorbala, Reza Sepehrinia

arxiv:1604.05106 v1 · 2016-04-18 · 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{ADKTQ7DFL7ORKXZYWZ2MMZX2ED}

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	2026-05-18T01:16:55.721986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00d5387c655fdd155f38b674c666fa20ded06759c6ea8a146e5a54937610474a

Aliases

arxiv: 1604.05106 · arxiv_version: 1604.05106v1 · doi: 10.48550/arxiv.1604.05106 · pith_short_12: ADKTQ7DFL7OR · pith_short_16: ADKTQ7DFL7ORKXZY · pith_short_8: ADKTQ7DF

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/ADKTQ7DFL7ORKXZYWZ2MMZX2ED \
  | 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: 00d5387c655fdd155f38b674c666fa20ded06759c6ea8a146e5a54937610474a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a40a0008df69ec873f2336d367083d062d07979754e3e835bd31e9d94e6e6b4d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2016-04-18T11:57:03Z",
    "title_canon_sha256": "03a8be37f153d8eef60e49ac644573dc0ceee9af18215e45dc99a39c57f045cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.05106",
    "kind": "arxiv",
    "version": 1
  }
}