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 0x27da0771a9e3cdff223e2ec68eae2fef2b3eaf631701e928ba1f81ca9d9c8793. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db2fef64-9e9e-43c5-b385-5d01b4a7f8f1.json and https://artists.proofprofile.net/proofs/artist/db2fef64-9e9e-43c5-b385-5d01b4a7f8f1.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 0xb2c083c28dc629f0ac4589cf4f4e6255e737058e345aba0fc08752fb3f5a5ebb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR9W11522689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9aad8c5fe507ced81f30084081def9a75deeb3d56c0bc7e6639f3633074fcc. 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/FR9W11522691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb87b53916f8a95607b01edbe0814dd83941a8b4c54d4f9e4e3df08d513d87e. 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/FR9W11522692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc04129108ee29c732cc37d1ff492a22f847df708338cad7fcfa29604cac913. 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/QM6N21707848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98aa09891f64697ef7422a8c54a6098c785a6739d9f74d2f4c13aedb2dd97c7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6N21707850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d18918a511eae09a5eae1907d0517c4a716606505c79c1f07aa6f5b00a4fc3c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QM6N21707856.
Higher Regions Records: The Singles Collection (2009-2016)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5b97579ce7d3aec12ab056312e55f0b2b8d93074a3d78d1fe425746d8955f8. 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/FR6V80378642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7466ec7bb8d18f31ee8003f5521221912bc13f0960ba78f6920995f96a72311. 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/FR6V80378646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da12f7601af0d6216ea8bceb7860900188cad76efa898df22f2089b64b56fd4. 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/FR6V80378647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23a87c3f2c7759b44e863561998eb73ad2b20099ce32fd1bb10f1ba6096c7cc. 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/FR6V80378648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63691e05d694879a848e55ce3b381fe51d7a161fd5b8b3bc6737f29eca495445. 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/FR6V80378649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0d85cb4fc81e8409aaf6d1640e56c0ee826c723bda4467f961a33c386bbecc. 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/FR6V81695504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a94d4fc1dc223ce17d498996e95376325db090f39fb013804b04964ea4d58e5. 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/FR6V82193515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb5beffae82fbd801068d0dd3c039ae71869f0299a1bb584d2e60270f12eb67. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FR6V82193516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48be79003bce046f9c6be60cbfb4373df1713ef15a32230cfc9fc734cb06ee9a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR6V82652451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82052b96682875d1676bd95f126ad938d8c468d804a11cabffa25da327dabb2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR6V82716004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e768c7890d5eda6a77c3882a53ffc44a4ca9a266a75e01ebd579a651ed5032. 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/FR26V1544462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a03dfb833eecd05377d22cc6592d6035766bc9c3411af8f758e0ef7d407d504. 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/FR26V1649296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50221648bfeae13c955621ca8794fafae12861de9189cfbdb7a7bbcfaf299a3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USHM82444409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93b3ab962a6f607d2a76062abb0ea7ba49824a31e39ca8429dbece4653ced1c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBAH61200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8ee5124add40ff0f0c45f1eefbe07c667ba325b8800db04e62425375b54033. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/GBAH61200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3922210cb3f5ce8ecb62a9f93a6b4972cc0272daae5be9d22ae82323331eaa3a. 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/GBAH61200031.