Pith Number

pith:PRSN7VZ4

pith:2011:PRSN7VZ4B3VMZTZC2YYU2B5R3J

not attested not anchored not stored refs pending

Randomly poled crystals as a source of photon pairs

Jan Perina Jr, Jiri Svozilik

arxiv:1101.0757 v1 · 2011-01-04 · 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{PRSN7VZ4B3VMZTZC2YYU2B5R3J}

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	2026-05-18T02:04:13.326697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c64dfd73c0eeacccf22d6314d07b1da5aeb7baedd6aec53fcb504d1ce95e75b

Aliases

arxiv: 1101.0757 · arxiv_version: 1101.0757v1 · doi: 10.48550/arxiv.1101.0757 · pith_short_12: PRSN7VZ4B3VM · pith_short_16: PRSN7VZ4B3VMZTZC · pith_short_8: PRSN7VZ4

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/PRSN7VZ4B3VMZTZC2YYU2B5R3J \
  | 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: 7c64dfd73c0eeacccf22d6314d07b1da5aeb7baedd6aec53fcb504d1ce95e75b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edbfdd73aa90536c785b529b6e52c3ff75e1ed1865354a9f18aa5e864c44d21b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-01-04T16:32:42Z",
    "title_canon_sha256": "f3fb2e0b86b57735817e7b781b5646e95f341d2c1a795746ecf1e87a89310123"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.0757",
    "kind": "arxiv",
    "version": 1
  }
}