Pith Number

pith:W3IFW53S

pith:2012:W3IFW53SASBL6QUOZYIX2H37R6

not attested not anchored not stored refs pending

Ultra-broadband continuously-tunable polarization entangled photon pair source covering the C+L telecom bands based on a single type-II PPKTP crystal

Bao-Sen Shi, Dong-Sheng Ding, Guang-Can Guo, Yun-Kun Jiang, Zhi-Yuan Zhou

arxiv:1211.4419 v2 · 2012-11-19 · quant-ph · physics.optics

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	2026-05-18T02:45:05.122442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6d05b77720482bf428ece117d1f7f8f82c91aeb4f65345dc60b8c79f8945603

Aliases

arxiv: 1211.4419 · arxiv_version: 1211.4419v2 · doi: 10.48550/arxiv.1211.4419 · pith_short_12: W3IFW53SASBL · pith_short_16: W3IFW53SASBL6QUO · pith_short_8: W3IFW53S

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/W3IFW53SASBL6QUOZYIX2H37R6 \
  | 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: b6d05b77720482bf428ece117d1f7f8f82c91aeb4f65345dc60b8c79f8945603

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d5fdc9246c2a6f6dc3ed3adf5bcca75fd33776559d5076a3198cc254466b694",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-11-19T13:56:33Z",
    "title_canon_sha256": "56a739dbf1292a57ad55c86e793e5c4162cefbc6e9de162bb17dd6ec15ee8092"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4419",
    "kind": "arxiv",
    "version": 2
  }
}