Pith Number

pith:DAQ6VCCI

pith:2003:DAQ6VCCIJDI3YKZOXHJBFY5ELI

not attested not anchored not stored refs pending

Direct observation of non-classical photon statistics in parametric downconversion

Barry C. Sanders, Edo Waks, Eleni Diamanti, Stephen D. Bartlett, Yoshihisa Yamamoto

arxiv:quant-ph/0307162 v1 · 2003-07-23 · 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{DAQ6VCCIJDI3YKZOXHJBFY5ELI}

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	2026-07-04T14:46:21.995365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1821ea884848d1bc2b2eb9d212e3a45a2b6e824f0705c5a92c629c2efa0562cf

Aliases

arxiv: quant-ph/0307162 · arxiv_version: quant-ph/0307162v1 · doi: 10.48550/arxiv.quant-ph/0307162 · pith_short_12: DAQ6VCCIJDI3 · pith_short_16: DAQ6VCCIJDI3YKZO · pith_short_8: DAQ6VCCI

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/DAQ6VCCIJDI3YKZOXHJBFY5ELI \
  | 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: 1821ea884848d1bc2b2eb9d212e3a45a2b6e824f0705c5a92c629c2efa0562cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac3bd2c5b8f7fce728c2d49264571b947566e097eb1b2f7eecca606e9ba87918",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-07-23T06:30:28Z",
    "title_canon_sha256": "97e021d67f6e3e567c672cf326abc651c1c1888e56a12d9f7b5e8a82dc7aa044"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0307162",
    "kind": "arxiv",
    "version": 1
  }
}