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 0x31796f4ac962474a2f38077dd6a13d92a9b0a7de2ded595bc2a9b24758262760. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b4c2176-53e0-44ad-8d36-b6543a6d673b.json and https://artists.proofprofile.net/proofs/artist/7b4c2176-53e0-44ad-8d36-b6543a6d673b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Driving into Magic Hour (feat. Q the trumpet)
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 0x5ccb1d48da73580bcf4422be2ca955d583717c9995f16c75deb6ce53e2f107f5. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/KRMIM2202217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6961e6cf87652c26db6126ff1221a5db2cc7802c26b67603d28e377640fed2. 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/KRMIM2207769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f73ad59b4be5b12da6f20570eab091da957c3b67403712e11dc23c7a3f8ce4a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/KRMIM2203770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9005c6364a01aa93575f8080907af1fc78f65c10790ca6c604e068999cf4ce12. 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/KRMIM2207770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa6ea1703c470b93f924e7a70fbc309ab9d09e7a2bb01f8f272ab3dcef33ffc. 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/KRMIM2207771.
Colombia (feat. Q the trumpet, Baek Gwan Woo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645b980ae876c91d2a4f27421d8341a370e65734d5e203e0c5b95fc1accc1e5e. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/KRMIM2207772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd60793b3ea7c69a85ae7a22c7bb0466a65a7d67bdb0add33684372caa838b58. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/KRMIM2205117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af35cbb421a329230d1e47878595914676d86dad604c9e375fc808ef1541f5a. 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/KRMIM2207773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fb638852343d700ba8381bfff39786bc3f58b11f3e74f2d6805b7f281f48bd. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/KRMIM2207774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe395e7b8deeb41a7834e874ecaf64add71ece71f20ac2983e5f3dd3037ffc497. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/KRMIM2207775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70366bbe749fb777d68d40be9ae54995f57394fc2130ecb55f59f05ad66f3029. 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/KRMIM2207776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e03d49bd52c2cf017ccc5447db9762130180b1b64361799950a98f679f8628. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/KRMIM2207777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278f8c18be41a9c23b1132479858f9c340d47e74c8a0e9aabf8832135ca1aa8c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/KRNAR2231615.