Pith Number

pith:XPTBXTWQ

pith:2025:XPTBXTWQLDZRZUGT33M7UJJVZN

not attested not anchored not stored refs pending

Low thermal noise mirror coatings utilising titanium dioxide and germanium dioxide mixtures

A. Markosyan, C. Clark, D. Gibson, F. Schiettekatte, G. McGhee, G. Vajente, I. W. Martin, J. Hough, J. Smith, M. Ben Yaala, M. Chicoine, M. Fazio, M. M. Fejer, N. Demos, P. Hill, S. Gras, S. Reid, S. Rowan, S. Tait

arxiv:2502.07679 v1 · 2025-02-11 · physics.ins-det · cond-mat.mtrl-sci · 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{XPTBXTWQLDZRZUGT33M7UJJVZN}

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	2026-07-05T10:12:52.457973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbe61bced058f31cd0d3ded9fa2535cb72569c46a91ce3ce2fce6bfc6b64c667

Aliases

arxiv: 2502.07679 · arxiv_version: 2502.07679v1 · doi: 10.48550/arxiv.2502.07679 · pith_short_12: XPTBXTWQLDZR · pith_short_16: XPTBXTWQLDZRZUGT · pith_short_8: XPTBXTWQ

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/XPTBXTWQLDZRZUGT33M7UJJVZN \
  | 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: bbe61bced058f31cd0d3ded9fa2535cb72569c46a91ce3ce2fce6bfc6b64c667

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a778052d6ef63891df3d5132a2f961e42875009f1fec182ddb05b3167dc1f11f",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2025-02-11T16:29:36Z",
    "title_canon_sha256": "8c1a0d0f2efec11fb65f5e4107ec0210f38b1d18bf8a3ce552b45538a01f07c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.07679",
    "kind": "arxiv",
    "version": 1
  }
}