Pith Number

pith:DDOPKELO

pith:2002:DDOPKELOC42DX6VK5T3AVVCGTG

not attested not anchored not stored refs pending

Unversality of decoherence in the macroworld

Daniel Braun, Fritz Haake, Walter T. Strunz

arxiv:quant-ph/0204129 v1 · 2002-04-22 · 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{DDOPKELOC42DX6VK5T3AVVCGTG}

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	2026-07-04T14:45:55.685702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18dcf5116e17343bfaaaecf60ad446998ed046f142c49c217ea2dfffc0e9ba2c

Aliases

arxiv: quant-ph/0204129 · arxiv_version: quant-ph/0204129v1 · doi: 10.48550/arxiv.quant-ph/0204129 · pith_short_12: DDOPKELOC42D · pith_short_16: DDOPKELOC42DX6VK · pith_short_8: DDOPKELO

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/DDOPKELOC42DX6VK5T3AVVCGTG \
  | 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: 18dcf5116e17343bfaaaecf60ad446998ed046f142c49c217ea2dfffc0e9ba2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d8fdce64a9ad38e8ed16b290f8fd61890ee94cf1e1a291ac63376a3a94a8043",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-04-22T10:26:06Z",
    "title_canon_sha256": "18148859a2a01dc5d1bf578b5ee29384b5eaa8af8a3f7ffcb30dd6ab73dc39e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0204129",
    "kind": "arxiv",
    "version": 1
  }
}