Pith Number

pith:ICW7E2AB

pith:2010:ICW7E2AB47GD5WJKNA7OZQHAHH

not attested not anchored not stored refs pending

Compressing the hidden variable space of a qubit

Alberto Montina

arxiv:1002.3139 v3 · 2010-02-16 · 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{ICW7E2AB47GD5WJKNA7OZQHAHH}

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	2026-05-18T04:26:21.027140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40adf26801e7cc3ed92a683eecc0e039c7f342ce7e5a48296161d5ed352b6b82

Aliases

arxiv: 1002.3139 · arxiv_version: 1002.3139v3 · doi: 10.48550/arxiv.1002.3139 · pith_short_12: ICW7E2AB47GD · pith_short_16: ICW7E2AB47GD5WJK · pith_short_8: ICW7E2AB

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/ICW7E2AB47GD5WJKNA7OZQHAHH \
  | 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: 40adf26801e7cc3ed92a683eecc0e039c7f342ce7e5a48296161d5ed352b6b82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f71c533fbaca902c9ad3bc8b6afd62cc8a93849a140ced5163eed6f4c90830e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-02-16T19:34:40Z",
    "title_canon_sha256": "2253be6aba677fb23fe99ae5a2e10b84270e4d61e2320638add2110e9f559d2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.3139",
    "kind": "arxiv",
    "version": 3
  }
}