Pith Number

pith:ARZ5IOBK

pith:2020:ARZ5IOBKG2T2FADWN3LX6I3V4C

not attested not anchored not stored refs pending

Partially Coherent Direct Sum Channels

Stefano Chessa, Vittorio Giovannetti

arxiv:2008.00494 v4 · 2020-08-02 · 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{ARZ5IOBKG2T2FADWN3LX6I3V4C}

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	2026-07-05T02:59:03.396197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0473d4382a36a7a280766ed77f2375e0aad3a9c53aa029d70d3a70738c5561b2

Aliases

arxiv: 2008.00494 · arxiv_version: 2008.00494v4 · doi: 10.48550/arxiv.2008.00494 · pith_short_12: ARZ5IOBKG2T2 · pith_short_16: ARZ5IOBKG2T2FADW · pith_short_8: ARZ5IOBK

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/ARZ5IOBKG2T2FADWN3LX6I3V4C \
  | 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: 0473d4382a36a7a280766ed77f2375e0aad3a9c53aa029d70d3a70738c5561b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a73d75b4a30c707d36412715ae6154be0771a7d9f5e7f714370c4d05f2e30c0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-08-02T14:36:11Z",
    "title_canon_sha256": "030e395fd6dfbd3313cba9c79a8939cf5f5432d2e51aafd9b4315f44a02b4f70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.00494",
    "kind": "arxiv",
    "version": 4
  }
}