Pith Number

pith:BSYPXBCQ

pith:2015:BSYPXBCQUXPEJ3VNGLF3VAAEID

not attested not anchored not stored refs pending

Quantum-State Purity of Heralded Single Photons Produced from Frequency-Anti-Correlated Biphotons

Shengwang Du

arxiv:1507.03483 v2 · 2015-07-13 · 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{BSYPXBCQUXPEJ3VNGLF3VAAEID}

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	2026-05-18T01:28:04.129985Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cb0fb8450a5de44eead32cbba800440fca435fff5cbaf2e6c1f152c167c6896

Aliases

arxiv: 1507.03483 · arxiv_version: 1507.03483v2 · doi: 10.48550/arxiv.1507.03483 · pith_short_12: BSYPXBCQUXPE · pith_short_16: BSYPXBCQUXPEJ3VN · pith_short_8: BSYPXBCQ

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/BSYPXBCQUXPEJ3VNGLF3VAAEID \
  | 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: 0cb0fb8450a5de44eead32cbba800440fca435fff5cbaf2e6c1f152c167c6896

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43bff6e67a391d785b9cb51ffe89cac6cc1b27b9cc26981f719bfb0b5bc707ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-07-13T14:54:14Z",
    "title_canon_sha256": "6960ae8623cc7cb9bdc725ddc58f91986ff71e83e41b9245bc42accefe767c71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03483",
    "kind": "arxiv",
    "version": 2
  }
}