No there is nothing saying the master key must be the identity, think about Bitcoin, a coin ownership isn't the same as key ownership, you can move the coin from one key to another.
Similarly in my system you would register to get an oridinal number according to the order of registeration, and that number is yours and you can then transfer it to another address based on any rules you want.
Then you encode that ordinal number as a readable name and use it as a DNS, here is an example of how would you encode these numbers (note that these numbers while ordinal they will be encoded to random names you can't squat) https://gist.githack.com/Nuhvi/8daa04620118a00d5d6bf40c3fbd9c6f/raw/mns-visualize.html
Let me try to make it easier to understand, imagine if instead of a Bitcoin address, you are identified by the Order number of a UTXO as it appears on Bitcoin (that is how ordinals work) then you can keep moving the coins from that UTXO from one address to another and retain identity.
I am doing the same thing but with Rootstock smart contract that controls registration and give each user that registered a unique number.
Nuh
npub1jv…s7yqz
2026-06-01 11:54:00 UTC
in reply to nevent1q…kdfg
Author Public Key
npub1jvxvaufrwtwj79s90n79fuxmm9pntk94rd8zwderdvqv4dcclnvs9s7yqzSeen on
wss://relay.damus.ioPublished at
2026-06-01 11:54:00 UTCEvent JSON
{
"id": "576839da77ef1bccbcab988320c44682c947c79d7b902b08c22161cd052747e2",
"pubkey": "930ccef12372dd2f16057cfc54f0dbd94335d8b51b4e2737236b00cab718fcd9",
"created_at": 1780314840,
"kind": 1,
"tags": [
[
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"15fde76baeb9bac55815115d43bc4be5a67cfb611a78f718d0c599dc9b40b7e9",
"wss://relay.primal.net/",
"root",
"930ccef12372dd2f16057cfc54f0dbd94335d8b51b4e2737236b00cab718fcd9"
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[
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"content": "No there is nothing saying the master key must be the identity, think about Bitcoin, a coin ownership isn't the same as key ownership, you can move the coin from one key to another.\n\nSimilarly in my system you would register to get an oridinal number according to the order of registeration, and that number is yours and you can then transfer it to another address based on any rules you want.\n\nThen you encode that ordinal number as a readable name and use it as a DNS, here is an example of how would you encode these numbers (note that these numbers while ordinal they will be encoded to random names you can't squat) https://gist.githack.com/Nuhvi/8daa04620118a00d5d6bf40c3fbd9c6f/raw/mns-visualize.html\n\nLet me try to make it easier to understand, imagine if instead of a Bitcoin address, you are identified by the Order number of a UTXO as it appears on Bitcoin (that is how ordinals work) then you can keep moving the coins from that UTXO from one address to another and retain identity.\n\nI am doing the same thing but with Rootstock smart contract that controls registration and give each user that registered a unique number.",
"sig": "51fea1bc93e0a68fe2a2cc5fc7e190bad640b68e52990597a64e82e01a147678c416a2a6d6f9a06d3743cb922b5629de20ab079628ff62b5d3445fa900412754"
}