Pith Number

pith:FLRS7DXV

pith:2018:FLRS7DXV6BYCD74CADPXFVPIUD

not attested not anchored not stored refs pending

Low-noise heralded single photons from cascaded downconversion

Deny R. Hamel, Evan Meyer-Scott, Patrick F. Poitras

arxiv:1803.02401 v1 · 2018-03-06 · 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{FLRS7DXV6BYCD74CADPXFVPIUD}

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	2026-05-18T00:15:27.949532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ae32f8ef5f07021ff8200df72d5e8a0e015c06ae13b9951d02fcaaa0253018e

Aliases

arxiv: 1803.02401 · arxiv_version: 1803.02401v1 · doi: 10.48550/arxiv.1803.02401 · pith_short_12: FLRS7DXV6BYC · pith_short_16: FLRS7DXV6BYCD74C · pith_short_8: FLRS7DXV

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/FLRS7DXV6BYCD74CADPXFVPIUD \
  | 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: 2ae32f8ef5f07021ff8200df72d5e8a0e015c06ae13b9951d02fcaaa0253018e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2291d807bec195753d0c6ef0ae6ee235b536b3e68184a58c59ecb69d13fbb9bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-03-06T19:46:05Z",
    "title_canon_sha256": "7ceb320ac5f5954cec5a99c316a5373f21f9a347245c03e091e0e7104ebb5ccf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02401",
    "kind": "arxiv",
    "version": 1
  }
}