Pith Number

pith:BCXXYM2Z

pith:2026:BCXXYM2ZS3W67CJGCJZSGNKQAR

not attested not anchored not stored refs pending

First-Principles Optical Descriptors and Hybrid Classical-Quantum Classification of Er-Doped CaF$_2$

Alireza Alipour, David Angel Alba Bonilla, Dennis Delali Kwesi Wayo, Kerem Yurtseven, Krishan Sharma, Muhammad Khizar, Ragunath Chandrasekharan

arxiv:2602.00525 v1 · 2026-01-31 · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BCXXYM2ZS3W67CJGCJZSGNKQAR}

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	2026-06-05T01:14:33.989054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08af7c335996edef8926127323355004437157c980af61195b2657408439f5b6

Aliases

arxiv: 2602.00525 · arxiv_version: 2602.00525v1 · doi: 10.48550/arxiv.2602.00525 · pith_short_12: BCXXYM2ZS3W6 · pith_short_16: BCXXYM2ZS3W67CJG · pith_short_8: BCXXYM2Z

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/BCXXYM2ZS3W67CJGCJZSGNKQAR \
  | 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: 08af7c335996edef8926127323355004437157c980af61195b2657408439f5b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef061bcbc311ba9f5dc995439278206611b241fe8f90630c5053060e38ea22f4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-01-31T05:43:59Z",
    "title_canon_sha256": "95359de830653dd2bad49787e7c2325ebb2f0d3c7ed786cc765e8c15976a9f64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.00525",
    "kind": "arxiv",
    "version": 1
  }
}