Pith Number

pith:ROMZOX5P

pith:2014:ROMZOX5P52JS4QP442HRC5L55I

not attested not anchored not stored refs pending

Compatibility properties of extreme quantum observables

Erkka Haapasalo, Juha-Pekka Pellonp\"a\"a, Roope Uola

arxiv:1404.4172 v2 · 2014-04-16 · 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{ROMZOX5P52JS4QP442HRC5L55I}

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	2026-05-18T01:35:12.311826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b99975fafee932e41fce68f11757dea0528a391eec8e1754edf827ac412c182

Aliases

arxiv: 1404.4172 · arxiv_version: 1404.4172v2 · doi: 10.48550/arxiv.1404.4172 · pith_short_12: ROMZOX5P52JS · pith_short_16: ROMZOX5P52JS4QP4 · pith_short_8: ROMZOX5P

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/ROMZOX5P52JS4QP442HRC5L55I \
  | 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: 8b99975fafee932e41fce68f11757dea0528a391eec8e1754edf827ac412c182

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82b546b5c8a85519a6598a02efa566a371764ac901a82797181e5bcbbbe8f934",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-04-16T08:55:39Z",
    "title_canon_sha256": "83e10bce8949f88f020b890aeda087856678bd1a92613912008901edd5da6be4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4172",
    "kind": "arxiv",
    "version": 2
  }
}