Pith Number

pith:56D3MPTL

pith:2015:56D3MPTLBAQVY4QYSZTDBLLWZB

not attested not anchored not stored refs pending

Linear-Optic Heralded Photon Source

Guilherme P. Tempor\~ao, Gustavo C. Amaral, Jean Pierre von der Weid, Thiago Ferreira da Silva

arxiv:1507.01929 v2 · 2015-07-07 · quant-ph · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{56D3MPTLBAQVY4QYSZTDBLLWZB}

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	2026-05-18T01:26:18.139522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef87b63e6b08215c7218966630ad76c85e230a83aa5174ba035e1f1f6a491fc3

Aliases

arxiv: 1507.01929 · arxiv_version: 1507.01929v2 · doi: 10.48550/arxiv.1507.01929 · pith_short_12: 56D3MPTLBAQV · pith_short_16: 56D3MPTLBAQVY4QY · pith_short_8: 56D3MPTL

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/56D3MPTLBAQVY4QYSZTDBLLWZB \
  | 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: ef87b63e6b08215c7218966630ad76c85e230a83aa5174ba035e1f1f6a491fc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fe01491f1b9ba48eecae4c1a5eb999ee7f1bc5019ebc77d4462cc41d15757a5",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-07-07T19:30:05Z",
    "title_canon_sha256": "f25be342b5fce2cb2ccefa3cc2825d7da41ffdd00973e28fdc694bb5f799a3d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01929",
    "kind": "arxiv",
    "version": 2
  }
}