Pith Number

pith:GKFZ3M77

pith:2006:GKFZ3M77HEPNNNIRA343DM4G3S

not attested not anchored not stored refs pending

An investigation into why macroscopic systems behave classically

David W. Hallwood, Jacob Dunningham, Keith Burnett

arxiv:quant-ph/0609077 v4 · 2006-09-11 · 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{GKFZ3M77HEPNNNIRA343DM4G3S}

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	2026-05-18T04:14:15.434947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

328b9db3ff391ed6b51106f9b1b386dc97e91b9e2b660117f10ebf78b786d308

Aliases

arxiv: quant-ph/0609077 · arxiv_version: quant-ph/0609077v4 · doi: 10.48550/arxiv.quant-ph/0609077 · pith_short_12: GKFZ3M77HEPN · pith_short_16: GKFZ3M77HEPNNNIR · pith_short_8: GKFZ3M77

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/GKFZ3M77HEPNNNIRA343DM4G3S \
  | 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: 328b9db3ff391ed6b51106f9b1b386dc97e91b9e2b660117f10ebf78b786d308

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6947ad9b11cca2e31afe4455959317d47e9677ae1b2241c8e65cc47a61454728",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-09-11T12:35:22Z",
    "title_canon_sha256": "ebe72fc9aefbf1e8d7be962197a693d16c013d560a26e81497c236e900c73cda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0609077",
    "kind": "arxiv",
    "version": 4
  }
}