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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd466e4ee41cd3c709f2ca99782dcf6ff07ee1544aef8b58af5f87d56d62b1cfc. 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/531f352e-4aa0-4545-87cb-6dbdc13442ab.json and https://artists.proofprofile.net/proofs/artist/531f352e-4aa0-4545-87cb-6dbdc13442ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Even If the Sky Is Falling Down (Instrumental Version)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21c7d492fcdb695dae82a9ad8acb1c8b21ea8897d46989ee649e4cf98772f3d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SE5Q51902784.
Give Me Your Attention (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438aa815eb8e7cd1d01b035064a1d36d39ce8410fc04ffbc25d8738872d6b73a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/SE5Q51902546.
You Can Take Me High - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd52ea8ce05f72de6fe5e11655cde986d7fff553ef0747ffe7e0d97022b7e8e. 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/SE5Q51903698.
Write You A Love Song - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340d243c8eb616e1b63ad302fe4fd546bd6916fd283fe754f378b5ed48f61c02. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SE5Q51828897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58fb38278cfd858c82bb3f3438781faec89f4d285b648c5589aa431b6e562b0. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:46:31Z), 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/SE5Q51903986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992f530ce24b0fc4706f2e60360621ba94d93c2c8c989246310182479b73e7cb. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/SE5Q52200815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbe4dd02338af662c306f6f36150b36c30b33179a4179b26b538b4c8943fe30. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:04:25Z), 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/SE5Q52200800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a62eb1f31584a6b333581f66cfad7e22a43d381194c7c25683a3feb70cc290. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:14:52Z), 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/SE5Q52203179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897db1c94f31ebef1c0aaa62c2159b49e0182fde5dd2c6ad971ab39f1f45fc8e. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/SE5Q52203178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce10118201c7a75a5cc1d79a9d680c8285d35d7c93da140d7ebb2b4c09aca08. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SE5Q52204217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b71e88684c3835db6e430d8cb4b64b71f73f2099ee885714b79f604ab9a3d6. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/SE5Q52204216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01010b1a3b110b6c123c42a7dd1f51d7d81af18e851bbfc84b833d10f59dda45. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/SE5Q52300819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c33cb8ba64dfdad10cefa672fdba450873f701de9cc732ee787093eec60b19. 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/SE5Q52300818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9c9f4402cc4568bb028c8a88059f9f21c06c712760d381227d0a1da9ba8f2e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SE5Q52300349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3600c26770249bea89858c8f5ec7a53a9688ae4b42c561889c81ebf466e2466. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE5Q52400442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9aa01af088a3837ed152706be440a2e077fb903c189bb604753ff600cdfee2. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/SE5Q52400443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782d89fd603d75e34592e2f2924934b576f443118093c27b4fed78fca10b4471. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/SE5Q52400859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ced466b9d964d40b97e3fa9b983cf725bc440483de9d1b85709134a739e333. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE5Q52402484.