Pith Number

pith:OUECQRTE

pith:2018:OUECQRTE6W5B2BXFAZWPCNODJE

not attested not anchored not stored refs pending

Machine Learning Inverse Problem for Topological Photonics

Claudio Conti, Francis A. Farrelly, Giulia Marcucci, Laura Pilozzi

arxiv:1803.02875 v1 · 2018-03-07 · 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{OUECQRTE6W5B2BXFAZWPCNODJE}

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	2026-05-18T00:21:45.213687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7508284664f5ba1d06e5066cf135c3493dfb64aa4212756fa1dabbefb8085ca9

Aliases

arxiv: 1803.02875 · arxiv_version: 1803.02875v1 · doi: 10.48550/arxiv.1803.02875 · pith_short_12: OUECQRTE6W5B · pith_short_16: OUECQRTE6W5B2BXF · pith_short_8: OUECQRTE

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/OUECQRTE6W5B2BXFAZWPCNODJE \
  | 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: 7508284664f5ba1d06e5066cf135c3493dfb64aa4212756fa1dabbefb8085ca9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0fa5a490deef1ee8cc5028c2caacd20d8737b55bd30343c27c487459bce7e18",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-03-07T21:06:36Z",
    "title_canon_sha256": "4f56bb8e72b6f171dce4a0614a25c74cd03ba8a50f87397972c4a1b47156c64e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02875",
    "kind": "arxiv",
    "version": 1
  }
}