Pith Number

pith:4FJRW3WH

pith:2009:4FJRW3WHP5WRXWUGTKAEUNNAVF

not attested not anchored not stored refs pending

State reconstruction of finite dimensional compound systems via local projective measurements and one-way classical communication

F. E. S. Steinhoff, M. C. de Oliveira

arxiv:0903.3249 v1 · 2009-03-18 · 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{4FJRW3WHP5WRXWUGTKAEUNNAVF}

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	2026-05-18T02:14:27.410514Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1531b6ec77f6d1bda869a804a35a0a95f416c684f641a1151d79bd972e136e0

Aliases

arxiv: 0903.3249 · arxiv_version: 0903.3249v1 · doi: 10.48550/arxiv.0903.3249 · pith_short_12: 4FJRW3WHP5WR · pith_short_16: 4FJRW3WHP5WRXWUG · pith_short_8: 4FJRW3WH

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/4FJRW3WHP5WRXWUGTKAEUNNAVF \
  | 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: e1531b6ec77f6d1bda869a804a35a0a95f416c684f641a1151d79bd972e136e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8967cf27d8f36f1b9472ed373e5e067bae0e07f098af7c84ec20769b24a4cfee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-03-18T22:48:21Z",
    "title_canon_sha256": "45642b116ceeae4cbdecbf9fca5b24954e01aa08c7a5fb40831e3bbac600c175"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3249",
    "kind": "arxiv",
    "version": 1
  }
}