Pith Number

pith:QQYVWX2C

pith:2015:QQYVWX2CDTSEIIUXSJONQHF6W2

not attested not anchored not stored refs pending

Spectral correlation in down-converted photon pairs at telecom wavelength

Andrzej Gajewski, Piotr Kolenderski

arxiv:1509.01262 v1 · 2015-09-03 · 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{QQYVWX2CDTSEIIUXSJONQHF6W2}

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	2026-05-18T01:10:38.416504Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84315b5f421ce4442297925cd81cbeb6a8cbe29d8842582c64da872df4e867d0

Aliases

arxiv: 1509.01262 · arxiv_version: 1509.01262v1 · doi: 10.48550/arxiv.1509.01262 · pith_short_12: QQYVWX2CDTSE · pith_short_16: QQYVWX2CDTSEIIUX · pith_short_8: QQYVWX2C

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/QQYVWX2CDTSEIIUXSJONQHF6W2 \
  | 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: 84315b5f421ce4442297925cd81cbeb6a8cbe29d8842582c64da872df4e867d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02016db515bbb1dce481cad27cd18c745a93fa9d1ba4ace9ae371593d6b500b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-09-03T20:06:14Z",
    "title_canon_sha256": "36cf0c9adaa65774c3458ee4b47ba58433a3a54656dfda6db97207995afcb0a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01262",
    "kind": "arxiv",
    "version": 1
  }
}