Pith Number

pith:AF4EDASM

pith:2013:AF4EDASME24NCUBUEJYR3RGGFA

not attested not anchored not stored refs pending

Spontaneous parametric down-conversion photon sources are scalable in the asymptotic limit for boson-sampling

Jonathan P. Dowling, Keith R. Motes, Peter P. Rohde

arxiv:1307.8238 v4 · 2013-07-31 · 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{AF4EDASME24NCUBUEJYR3RGGFA}

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	2026-05-18T01:16:11.801730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

017841824c26b8d1503422711dc4c62824117546983af62a770fdc5f30b2f00d

Aliases

arxiv: 1307.8238 · arxiv_version: 1307.8238v4 · doi: 10.48550/arxiv.1307.8238 · pith_short_12: AF4EDASME24N · pith_short_16: AF4EDASME24NCUBU · pith_short_8: AF4EDASM

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/AF4EDASME24NCUBUEJYR3RGGFA \
  | 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: 017841824c26b8d1503422711dc4c62824117546983af62a770fdc5f30b2f00d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d28ecc3e7ac7cec80cffa47469518eb6ae46a419b020733b097c17a9a29890b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-07-31T07:16:14Z",
    "title_canon_sha256": "2747494a232e7c3a056d55f0590e8bb65385f7bd8928b4596a1a21863ced3f76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.8238",
    "kind": "arxiv",
    "version": 4
  }
}