Pith Number

pith:AQX5NEJL

pith:2017:AQX5NEJL4Y4NVJPITZ36JKVGQR

not attested not anchored not stored refs pending

Efficient generation and spectral characterization of spectrally factorable biphotons

Cao Bo, Changchen Chen, Feihu Xu, Franco N. C. Wong, Jeffrey H. Shapiro, Murphy Yuezhen Niu, Zheshen Zhang

arxiv:1701.01755 v2 · 2017-01-06 · 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{AQX5NEJL4Y4NVJPITZ36JKVGQR}

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	2026-05-18T00:47:48.581238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

042fd6912be638daa5e89e77e4aaa68475e400f1b065b525616e38ac47760220

Aliases

arxiv: 1701.01755 · arxiv_version: 1701.01755v2 · doi: 10.48550/arxiv.1701.01755 · pith_short_12: AQX5NEJL4Y4N · pith_short_16: AQX5NEJL4Y4NVJPI · pith_short_8: AQX5NEJL

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/AQX5NEJL4Y4NVJPITZ36JKVGQR \
  | 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: 042fd6912be638daa5e89e77e4aaa68475e400f1b065b525616e38ac47760220

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffa4f72860d330c70f26bb6553d224b66de5ee3c78ce7ec3e24d22b3666af791",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-01-06T20:52:26Z",
    "title_canon_sha256": "bb1e40e88812908f4be4c58f84479e3ced626f1e927ed8d15a0eb76b796268f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.01755",
    "kind": "arxiv",
    "version": 2
  }
}