Pith Number

pith:NA3UXCHN

pith:2013:NA3UXCHNDAV66UBDWYJI7CZGQE

not attested not anchored not stored refs pending

Testing Information Causality for General Quantum Communication Protocols

Feng-Li Lin, I-Ching Yu

arxiv:1301.1448 v3 · 2013-01-08 · quant-ph · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NA3UXCHNDAV66UBDWYJI7CZGQE}

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	2026-05-18T01:36:23.013164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68374b88ed182bef5023b6128f8b268121bc19664e8915e063f1694a7515e7b4

Aliases

arxiv: 1301.1448 · arxiv_version: 1301.1448v3 · doi: 10.48550/arxiv.1301.1448 · pith_short_12: NA3UXCHNDAV6 · pith_short_16: NA3UXCHNDAV66UBD · pith_short_8: NA3UXCHN

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/NA3UXCHNDAV66UBDWYJI7CZGQE \
  | 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: 68374b88ed182bef5023b6128f8b268121bc19664e8915e063f1694a7515e7b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ed0ab583b073fdde32675fde72834fefceafa87250199bc535780dff908906a",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-01-08T09:03:47Z",
    "title_canon_sha256": "92bc512dac53e5d4a1a23a47baa0702f1b00030b097c3889ad833b947f36bb3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1448",
    "kind": "arxiv",
    "version": 3
  }
}