Miasona Seeding Event

Quote from: rubyatmidnight on June 05, 2026, 06:14:38 PM

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Hello,

I will soon be generating unique avatars for users of our game, these are not NFTs, (every generation is unique, there are no rarity tiers) but I am using a future blockhash as the primary seeding source and I need a public seeding event for it to feel meaningful.

given there is no better place, I am doing it here. As I post this, we're at block height 952507.

The structure of this is `seed = "<SHA256¹⁰⁰(blockhash)>:<blockhash>:<kick_id>" and the result of that will be used to procedurally generate the cat avatar.

I will establish that the block hash at block height 952520 will be our chosen block. That will be in around two hours from now.

Code:

def derive_features(kick_user_id: int, username: str) -> CatsonaFeatures:
    stream = _ByteStream(f"{GENESIS_PREFIX}:{GENESIS_BLOCKHASH}:{kick_user_id}")

    fur_h = _hue(stream.next(), stream.next())
    fur_s = round(_span(stream.next(), *FUR_SAT))
    fur_l = round(_span(stream.next(), *FUR_LIGHT))
    fur_hsl = (round(fur_h), fur_s, fur_l)

    pattern = _pick(stream.next(), PATTERN)

    eye_h = _hue(stream.next(), stream.next())
    eye_s = round(_span(stream.next(), *EYE_SAT))
    eye_l = round(_span(stream.next(), *EYE_LIGHT))
    eye_hsl = (round(eye_h), eye_s, eye_l)
    eye_hsl_right = eye_hsl
    heterochromia = (stream.next() / 256.0) < HETERO_CHANCE
    if heterochromia:
        gap = HETERO_MIN_HUE_GAP + (stream.next() / 255.0) * (360 - 2 * HETERO_MIN_HUE_GAP)
        h2 = (eye_h + gap) % 360
        s2 = round(_span(stream.next(), *EYE_SAT))
        l2 = round(_span(stream.next(), *EYE_LIGHT))
        eye_hsl_right = (round(h2), s2, l2)

    nose_hsl = (340, 50, 78) if fur_l >= 50 else (350, 18, 45)
    ear_hsl = (340, 45, 80) if fur_l >= 45 else (340, 22, 55)

    return CatsonaFeatures(
        kick_user_id=kick_user_id,
        name=f"{username}Cat",
        fur_name=_hue_name(fur_h),
        fur_hsl=fur_hsl,
        pattern=pattern[0],
        eye_name="heterochromia" if heterochromia else _hue_name(eye_h),
        eye_hsl=eye_hsl,
        eye_hsl_right=eye_hsl_right,
        nose_hsl=nose_hsl,
        ear_hsl=ear_hsl,
        heterochromia=heterochromia,
    )

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To verify my signature, my public key is on my website, which anyone who knows what this is for should be able to find. If you don't know, then don't worry about it.
Actually, I added a sentence after the fact on accident. Had to fix that unfortunately.

I'm pretty sure pgp hates bbcode, so I'm going to just establish it with a cleaner signed message:

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Hash: SHA512

given there is no better place, I am doing it here. As I post this, we're at block height 952507.

The structure of this is `seed = "<SHA256¹⁰⁰(blockhash)>:<blockhash>:<kick_id>" and the result of that will be used to procedurally generate the cat avatar.

I will establish that the block hash at block height 952520 will be our chosen block. That will be in around two hours from now.
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BthgAQDPYkIUDg3V69AleMBCKiUUmQqBYvq1/ELs0SMSXsJMEQD9HJvJDNdrs12b
jTW58yfmQWJKmRwLhdelhrZGmQx6TAA=
=Z5pF
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Thanks! I'll make one more post once the block height is reached.

BTC Block height 952520:

Hash:

Code:

00000000000000000000e3d9b254ca41ce02e9e292d9ca69ffeb1c4ffc118f17

Code:

def sha256_100_times(text: str) -> str:
    data = text.encode("utf-8")

    for _ in range(100):
        data = hashlib.sha256(data).digest()

    return data.hex()

Input:

Code:

00000000000000000000e3d9b254ca41ce02e9e292d9ca69ffeb1c4ffc118f17

SHA256x100:

Code:

11e993fa8ccfa888e027eafb7f503a636ad240dde70e15a110751fe277c7925e