Pith Number

pith:N3HEPILT

pith:2013:N3HEPILTK7YRQRBOYMCZQQM4RZ

not attested not anchored not stored refs pending

Quantum limits on probabilistic amplifiers

Carlton M. Caves, Joshua Combes, Shashank Pandey, Zhang Jiang

arxiv:1304.3901 v3 · 2013-04-14 · 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{N3HEPILTK7YRQRBOYMCZQQM4RZ}

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	2026-05-18T03:11:33.341899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ece47a17357f118442ec30598419c8e5f0106afceb9c550793a2fb2a1578ee5

Aliases

arxiv: 1304.3901 · arxiv_version: 1304.3901v3 · doi: 10.48550/arxiv.1304.3901 · pith_short_12: N3HEPILTK7YR · pith_short_16: N3HEPILTK7YRQRBO · pith_short_8: N3HEPILT

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/N3HEPILTK7YRQRBOYMCZQQM4RZ \
  | 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: 6ece47a17357f118442ec30598419c8e5f0106afceb9c550793a2fb2a1578ee5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2faf275cb3cd4c43cce49bc9111ff6f042a6c88d51dd51730c62bd018167f7bd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-04-14T10:26:01Z",
    "title_canon_sha256": "9a59d32fe091dcb4b45994b2e0ce8a8855fc5749b6f3b61483ab2dd55c0582d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3901",
    "kind": "arxiv",
    "version": 3
  }
}