Pith Number

pith:ZICRJF76

pith:2012:ZICRJF76BF4WDSHQLCFL7ZKQPX

not attested not anchored not stored refs pending

Scalable reconstruction of density matrices

David Gross, Marcus Cramer, Martin B. Plenio, Tillmann Baumgratz

arxiv:1207.0358 v2 · 2012-07-02 · 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{ZICRJF76BF4WDSHQLCFL7ZKQPX}

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	2026-05-18T03:18:08.303791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca051497fe097961c8f0588abfe5507dc7fcc9a7542a3809d62292ae0766a86b

Aliases

arxiv: 1207.0358 · arxiv_version: 1207.0358v2 · doi: 10.48550/arxiv.1207.0358 · pith_short_12: ZICRJF76BF4W · pith_short_16: ZICRJF76BF4WDSHQ · pith_short_8: ZICRJF76

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/ZICRJF76BF4WDSHQLCFL7ZKQPX \
  | 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: ca051497fe097961c8f0588abfe5507dc7fcc9a7542a3809d62292ae0766a86b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fac5d157b6a9d91946b5945a2432e9c4eea1160731ee12a9c17eb72bc7b7a427",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-07-02T12:32:47Z",
    "title_canon_sha256": "b3106b20f09b0d38193390d7d71460a1dc45c8d449d0b1b6151df9acabb35daf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.0358",
    "kind": "arxiv",
    "version": 2
  }
}