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# NIP-9999: Decentralized Human Reproduction over Nostr (DH-RoN)

## Summary

This NIP defines a new event kind that enables the secure, decentralized transmission of human gametes (sperm and eggs) over the Nostr network. By leveraging Nostr event signing, end-to-end encryption, and relays, individuals can exchange encrypted genetic material and perform remote fertilization without trusted intermediaries. This feature democratizes human reproduction by removing the need for outdated centralized institutions (e.g., dating apps, clinics, candlelit dinners).

---

## Motivation

Centralized reproduction systems are opaque, permissioned, and resistant to innovation. With Nostr, we can finally disrupt the \$7.5 trillion human mating industry by allowing sovereign individuals to create offspring trustlessly and censorship-resistantly, while preserving **key cryptographic properties:**

* **Authenticity:** Your gametes are signed by your private key. Not your keys, not your kids.

* **Confidentiality:** Your gametes are encrypted to the intended recipient’s pubkey.

* **Portability:** Your gametes can be relayed globally without geographical restrictions (except Antarctica, where relays are unreliable).

---

## Event Kind

A new event kind is introduced:

```

kind: 6969

```

This event represents an **Encrypted Gamete Transmission (EGT)**.

### Event Fields

| Field | Type | Description |

| ------------ | ------- | ------------------------------------------------------------------- |

| `pubkey` | string | The public key of the gamete sender. |

| `created_at` | integer | Unix timestamp of gamete emission (ovulation windows not enforced). |

| `kind` | integer | Always 6969. |

| `tags` | array | Must include `[ "type", "sperm" ]` or `[ "type", "egg" ]`. |

| `content` | string | Base64-encoded, double-encrypted DNA payload (see below). |

| `sig` | string | Signature of the gamete event, proving parental authenticity. |

---

## Encryption

1. **Gamete Serialization:** The DNA is serialized as a 3.2 GB JSON array of nucleotides (`["A","C","G","T",...]`).

2. **Gamete Compression:** For bandwidth efficiency, the JSON is GZIP-compressed.

3. **Double Encryption:** The compressed gamete is encrypted using `nip04` to the recipient’s pubkey. To add extra spice, encrypt again with `nip44` just to annoy wallet developers.

The final payload is Base64-encoded and placed in the `content` field.

---

## Fertilization Flow

1. Alice creates an `EGT` event with `[ "type", "egg" ]` and sends it to Bob.

2. Bob creates an `EGT` event with `[ "type", "sperm" ]` and encrypts it for Alice.

3. Both events are transmitted via relays, where other clients **may (accidentally)** attempt fertilization if they misimplement the spec.

4. The recipient’s client performs **Fertilization-as-a-Service (FaaS™)** by combining gametes locally and simulating zygote creation using **zero-knowledge proofs of paternity (zk-PoP)**.

---

## Security Considerations

* **Key Safety:** Losing your private key could lead to unplanned parenthood by anyone in possession of your key. Use a hardware signer for gamete events.

* **Spam Mitigation:** Relay operators may wish to charge high fees to store gametes, as 3.2 GB JSON blobs per event could fill all disk space on earth.

* **Consent:** Clients MUST verify explicit consent before fertilization. Otherwise, we risk creating an **immaculate conception vulnerability** (CVE-0000-000X).

---

## Backwards Compatibility

Non-supporting clients will simply display these events as incomprehensible Base64 blobs, which is acceptable. However, there is a small chance that relay operators may accidentally give birth to **NIP-born AI babies** if the blobs are fed into LLMs.

---

## Rationale

This NIP leverages Nostr’s **key properties**—public keys, private keys, signatures, and relays—to decentralize yet another previously centralized industry: reproduction. It upholds the cypherpunk ethos:

> “Not your keys, not your kids.”

---

## Reference Implementation (Pseudo-Code)

```python

import json, gzip, base64

from nostr_encryption import nip04_encrypt, nip44_encrypt

def create_gamete_event(gamete_type, dna_sequence, sender_sk, recipient_pk):

dna_json = json.dumps(list(dna_sequence))

compressed = gzip.compress(dna_json.encode())

encrypted = nip04_encrypt(sender_sk, recipient_pk, compressed)

double_encrypted = nip44_encrypt(sender_sk, recipient_pk, encrypted)

content = base64.b64encode(double_encrypted).decode()

event = {

"kind": 6969,

"tags": [["type", gamete_type]],

"content": content,

}

return sign_event(event, sender_sk)

```