Pith Number

pith:D2YWAROB

pith:2019:D2YWAROBT24EDVHT7NRDWOIX42

not attested not anchored not stored refs pending

Puzzling out the mass-superselection rule

Daniel M. Greenberger, Magdalena Zych

arxiv:1906.03725 v1 · 2019-06-09 · quant-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D2YWAROBT24EDVHT7NRDWOIX42}

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	2026-05-17T23:43:45.143322Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1eb16045c19eb841d4f3fb623b3917e6bb979cd70516c9e542b8628844ab47b4

Aliases

arxiv: 1906.03725 · arxiv_version: 1906.03725v1 · doi: 10.48550/arxiv.1906.03725 · pith_short_12: D2YWAROBT24E · pith_short_16: D2YWAROBT24EDVHT · pith_short_8: D2YWAROB

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/D2YWAROBT24EDVHT7NRDWOIX42 \
  | 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: 1eb16045c19eb841d4f3fb623b3917e6bb979cd70516c9e542b8628844ab47b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c95cd9401f41b4caa77d12f24d2db9baf8b9857a2059271c3fba9f93f3b557cf",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-06-09T22:17:11Z",
    "title_canon_sha256": "6ac6bbaaeadc61a13f44fd2502e97ba662cff8af043f854b9066f06bceb91984"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.03725",
    "kind": "arxiv",
    "version": 1
  }
}