Pith Number

pith:AYQ5FWUS

pith:2018:AYQ5FWUSCY4TTA7TAXBQJWP45M

not attested not anchored not stored refs pending

Electromagnetic helicity in complex media

F. Alpeggiani, F. Nori, K. Y. Bliokh, L. Kuipers

arxiv:1802.09392 v2 · 2018-02-26 · 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{AYQ5FWUSCY4TTA7TAXBQJWP45M}

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	2026-05-18T00:13:04.584713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0621d2da9216393983f305c304d9fceb3e6b3b8c431ff3467b72a53f5d0f0b5d

Aliases

arxiv: 1802.09392 · arxiv_version: 1802.09392v2 · doi: 10.48550/arxiv.1802.09392 · pith_short_12: AYQ5FWUSCY4T · pith_short_16: AYQ5FWUSCY4TTA7T · pith_short_8: AYQ5FWUS

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/AYQ5FWUSCY4TTA7TAXBQJWP45M \
  | 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: 0621d2da9216393983f305c304d9fceb3e6b3b8c431ff3467b72a53f5d0f0b5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "016d4c173b648247c762e30225443c251fa61bc7f2bf422463ae94f3273ceba5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-02-26T15:24:14Z",
    "title_canon_sha256": "d4649bc5fac591c2f427cd4398a1f30ac4fcbf443e7bce25e0f685ab1d9cccf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.09392",
    "kind": "arxiv",
    "version": 2
  }
}