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 0xfabbc8bdb87c4ed721c6f2d1e1f5004ffc818ace2b6735cb9cc55dc5b99d8937. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc98270d-2757-4e05-adf8-bc3471469386.json and https://artists.proofprofile.net/proofs/artist/bc98270d-2757-4e05-adf8-bc3471469386.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x530cd2695e87cb9e7dac34fe8b06cf7424cae659a8ac83ad99c9190b39382e01. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRA491801251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92addbddfe9e675eb34d684a1eb1c350830656df49851c3e4854013c28a9233. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRE131900113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40347886fabe1a82187128b10442ce18396512f152064224457f48a18399159. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/KRE131900117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e0e24d7bfbae758390759811c54da4483275108a463aa2a4d0bba35814726e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KRE131900122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0bee6fbb2811be608e6592daba00872d59761d1febcd0ab575516ed34c1974. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRE131900123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb85313eb105ec7e0e0c080ce1838272c24d45b0490c66941c266b645a916c5. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:06:21Z), 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/KRMIM2469786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea483421a317a844d736e13cdcaa02eb5f08f10bdb26c79d8336108dbc3c2f5b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/KRMIM2469787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6749aac7ec4495ea2699e4e8f7d4a4401095890355c9eab7482debb08c56047f. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/KRMIM2469788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94afe261fff68e4b89b8f1291a7c694bef38a3f7a0c2b2d63344f33bc19805c9. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/KRMIM2469789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67924cfc29bc64fdacef2d87034969ba4bfc7c4a869449f8313416bf05d193d7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRMIM2469790.
Ben Baller (Feat. UNEDUCATED KID & Ghoulavelii & BRADYSTREET) (Prod by. BOYCOLD)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a58ba23c497bea2f659261fce1a0ba1bd8a0625cf2a39481daa6ee9aafede2. 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/KRC711900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cbd712f64be559e608299e0fba3befb0c7ca31384f8468c71f1782b86371d4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRF152000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf142ae1cb794ee6c4287910362a61c651daa70140246d9437427856cbd5e35b3. 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/KRA381900695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffa0e57d003c000710537288d91cee33eb969e65dc0913d831f1038a94eb59d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRA252002052.
My Side (feat. oceanfromtheblue, ASH ISLAND, BRADYSTREET, Wonstein)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb1d4e5923208509fea508d1da5cd168947400f89042a67e3b00b6e4a44f2c2. 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/KRMIM1903044.