Pith Number

pith:4TGVVASX

pith:2009:4TGVVASX6BD4DMABBRUAC3EIDB

not attested not anchored not stored refs pending

Generation of polarization entangled photons using type-II doubly periodically poled lithium niobate waveguides

A. Martin, D. B. Ostrowsky, J. Lugani, K. Sinha, K. Thyagarajan, O. Alibart, S. Ghosh, S. Tanzilli

arxiv:0911.0031 v2 · 2009-10-30 · quant-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

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	2026-05-18T04:05:04.376811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4cd5a8257f047c1b0010c68016c88184ae7f1e8832113a22e842c99a63ecad8

Aliases

arxiv: 0911.0031 · arxiv_version: 0911.0031v2 · doi: 10.48550/arxiv.0911.0031 · pith_short_12: 4TGVVASX6BD4 · pith_short_16: 4TGVVASX6BD4DMAB · pith_short_8: 4TGVVASX

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/4TGVVASX6BD4DMABBRUAC3EIDB \
  | 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: e4cd5a8257f047c1b0010c68016c88184ae7f1e8832113a22e842c99a63ecad8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1157004a7254cd74d9675369b10510a25c4c5023d7b99b780e32a88cba3cfb49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-10-30T22:16:23Z",
    "title_canon_sha256": "213f7d3bb90387a170edbd9c636e73bc7fdeaebaba95d0ced9b33d3b99a24bf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0031",
    "kind": "arxiv",
    "version": 2
  }
}