Pith Number

pith:QUSGUF2W

pith:2025:QUSGUF2W6E36QLZPQFECB4TDDN

not attested not anchored not stored refs pending

Magnetic noise in macroscopic quantum spatial superposition

2), (2) Homi Bhabha National Institute, (3) Northwestern University, (4) University College London, (5) Van Swinderen Institute, Andrew Geraci (3), Anupam Mazumdar (5) ((1) National Institute of Science Education, Research, Sneha Narasimha Moorthy (1, Sougato Bose (4), University of Groningen)

arxiv:2504.13252 v3 · 2025-04-17 · 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{QUSGUF2W6E36QLZPQFECB4TDDN}

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	2026-07-05T11:57:56.113247Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85246a1756f137e82f2f814820f2631b7cf3712af17ffb48bf13e0434bf0c2cb

Aliases

arxiv: 2504.13252 · arxiv_version: 2504.13252v3 · doi: 10.48550/arxiv.2504.13252 · pith_short_12: QUSGUF2W6E36 · pith_short_16: QUSGUF2W6E36QLZP · pith_short_8: QUSGUF2W

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/QUSGUF2W6E36QLZPQFECB4TDDN \
  | 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: 85246a1756f137e82f2f814820f2631b7cf3712af17ffb48bf13e0434bf0c2cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6002d045b3464c018c48b53ddca79cfbc9176ca377d75b659c3ea1cc54046ff6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-04-17T18:00:02Z",
    "title_canon_sha256": "1d207cdfd60b7a593d52b54f713c0233634dd014f037ccdfef647b20478bcc66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.13252",
    "kind": "arxiv",
    "version": 3
  }
}