Pith Number

pith:Q2J2CH4M

pith:2013:Q2J2CH4MIR4N365BOXQHIBOKEC

not attested not anchored not stored refs pending

Exhibition of circular Bragg phenomenon by hyperbolic, dielectric, structurally chiral materials

Akhlesh Lakhtakia

arxiv:1312.2157 v1 · 2013-12-08 · 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{Q2J2CH4MIR4N365BOXQHIBOKEC}

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	2026-05-18T02:57:35.383025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8693a11f8c4478ddfba175e07405ca20aa779fe3c7efa94b9b5d21dc6bb61afe

Aliases

arxiv: 1312.2157 · arxiv_version: 1312.2157v1 · doi: 10.48550/arxiv.1312.2157 · pith_short_12: Q2J2CH4MIR4N · pith_short_16: Q2J2CH4MIR4N365B · pith_short_8: Q2J2CH4M

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/Q2J2CH4MIR4N365BOXQHIBOKEC \
  | 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: 8693a11f8c4478ddfba175e07405ca20aa779fe3c7efa94b9b5d21dc6bb61afe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c41c345c425edb0b5b1ee376751d6dce421a38758ed15d6a291e5c7604427003",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-12-08T00:47:43Z",
    "title_canon_sha256": "13a7a133ddbc6ba79cb12675b886f91ac44416e09bb10d45c5020cfcd116e6f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2157",
    "kind": "arxiv",
    "version": 1
  }
}