Pith Number

pith:HKJDXBU5

pith:2025:HKJDXBU5EF3SZCJXHMCO7TZUJS

not attested not anchored not stored refs pending

Spontaneous Collapse Models

Matteo Carlesso, Sandro Donadi

arxiv:2508.18822 v1 · 2025-08-26 · 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{HKJDXBU5EF3SZCJXHMCO7TZUJS}

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	2026-07-05T11:59:31.737605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a923b869d21772c89373b04efcf344c8fe59b9468a6fcbf5678b34ab19a1b2b

Aliases

arxiv: 2508.18822 · arxiv_version: 2508.18822v1 · doi: 10.48550/arxiv.2508.18822 · pith_short_12: HKJDXBU5EF3S · pith_short_16: HKJDXBU5EF3SZCJX · pith_short_8: HKJDXBU5

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/HKJDXBU5EF3SZCJXHMCO7TZUJS \
  | 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: 3a923b869d21772c89373b04efcf344c8fe59b9468a6fcbf5678b34ab19a1b2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb9cf19e16dbeb28f582495b67f78a8c694b46d6cb391d99a283bee2009558f2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-08-26T09:00:55Z",
    "title_canon_sha256": "758928f46f29c500f01b592fc8b31c373a3b57ba736e6ec4eed06c8c73bd51c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.18822",
    "kind": "arxiv",
    "version": 1
  }
}