This is Baikal X10/G28 ASICs arrived at Bitcore network
Same shit has happened with Microbitcoin MBC network. diamind-groestl algo.
Officially Baikal X,G28 ASICs don't support dmd-gr algo, but difference between groestl and diamond-groestl is only in markle root. Baikal devs have modified miner software to change markle root calculations on their ASICs and achieved ability to mine diamond-groestl algorithm at 28GH/s on Baikal g28.

some of their wallets https://subscriberpool.com/?address=BdK9ZMkwQfYb5GqUy9d4oCVdJp3TKq9cTM
https://subscriberpool.com/?address=BVtx9kAug38TFeGGdaoiAC4X78QjhwD2AQ

They are used by baikal developers to mine privately with modified software to support at least dmd-gr and bitcore algorithms, with available SDK kernels they can modify markle root calculations and chain available SHA3 algos in any way they want.
Baikal ASIC chips are natively support all SHA3 hash algos, which are contains in bitcore hashing algorithm. and they can combine them in any way with modified/private software (sdk, source code), available only to Baikal developer/manufacturer team

• blake
• bmw
• groestl
• skein
• jh
• keccak
• luffa
• cubehash
• shavite
• simd
• echo

And now Baikal developers have managed to chain them and found ability to mine on bitcore network