Pith Number

pith:ORCKWU43

pith:2010:ORCKWU43T2QVQKYJCB4YMLIUNK

not attested not anchored not stored refs pending

Heralding Single Photons Without Spectral Factorability

Joseph B. Altepeter, Prem Kumar, Yu-ping Huang

arxiv:1008.2792 v1 · 2010-08-16 · 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{ORCKWU43T2QVQKYJCB4YMLIUNK}

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	2026-05-18T04:37:10.065617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7444ab539b9ea1582b091079862d146aaa947ff4204cd2bb942648c32735433d

Aliases

arxiv: 1008.2792 · arxiv_version: 1008.2792v1 · doi: 10.48550/arxiv.1008.2792 · pith_short_12: ORCKWU43T2QV · pith_short_16: ORCKWU43T2QVQKYJ · pith_short_8: ORCKWU43

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/ORCKWU43T2QVQKYJCB4YMLIUNK \
  | 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: 7444ab539b9ea1582b091079862d146aaa947ff4204cd2bb942648c32735433d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c8b7fdc99a784aff5f8a84282699a293efb523152c29f7103ef752d2d28136d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-08-16T23:18:40Z",
    "title_canon_sha256": "3492c8f2f082cb4c143c6036edddd3ce09176e1ef3de1f8acf4e9a9745f037d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2792",
    "kind": "arxiv",
    "version": 1
  }
}