Kim Seong-kyung (), better known by his stage name Boi B (), is a South Korean rapper and member of Rhythm Power. He was a contestant on Show Me the Money 5. He released his first album, Night Vibe, o
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddf630b4ead2c2d1f507494156d8f061974dba4ea530ffe5c87b93dc22b1c58. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74848592-5a55-49ec-a0bd-82f043256d32.json and https://artists.proofprofile.net/proofs/artist/74848592-5a55-49ec-a0bd-82f043256d32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tiger Butterfly [ Vamp & Soultree Bootleg Remix]
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67331e43e6c51e5fabe59b9716e53b28a4df0b855c020593f220af5a4f3d9856. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KSA012149875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c236da862bd59dd73d45b067950fb27be3b00335ae2ad38d4003453bc799dce. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KSA012182557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a545ce22e9a4cd1a7faeae9d8f51f731e057955b626eba7786a67e84d61bae3. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTWC2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0ce002373514950a52ba6bee13e91a103afdbcd5812e46f1f4abda0517affe. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA381904406.
A Knowing(Feat.Boi.B)(Prod.Gill Of Magic Mansion)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bd055bd349112043dc960ac9eef85845533ec881a39d7fcd07e05da8f71ddd. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA381701250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50f733aca7a3bbd2098752ebd042079c23e3148b0290639d238314d92dc97a3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRS182103204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a92946fa11664e6d853a656a0492b2b3909bc4730e7d199d441cbdd2f47c99. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRC711800054.
Wavey (Deadbois X Sweet Female Attitude)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d51b431f6c24cbb799a823f93e41eb2a80b22d8633f740f8f9832127332b4b5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRMIM2139986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c839fa138949639554e20d1054f94b18648af6e7e3edb3fd792d07c216deac. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRMIM2023183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb546fd4ff1406c0ee6ff18cb2fffa2e4345a7c6cccdc31f220ba537dfcde08. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRMIM2139994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5281d5cac7a68486b712bb6ce2025b40548556047d316d6765fbd3569819ea6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA491800263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ab9a0be21a6ec6fa83496b910bf9cc0b29460bece37c7db9745deeb14059e3. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRE022400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404dba9ce165fe279ebfc83bd469b5f5974b661b3c1b15f60f6c084b9e866298. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRMIM2100826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd729f7591bbd299636f4842958f47bf36d297662de4747efb3b7b29e3e3329e3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA491600601.