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 0xdb67447c63aec4cebda1a596c8a776973b74e4ddc1d992cbdfebd5a6bc60b644. 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/8fcd483e-2581-444b-9913-036da9decdb2.json and https://artists.proofprofile.net/proofs/artist/8fcd483e-2581-444b-9913-036da9decdb2.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 0x0e627c0b87ff8d06dac4516cec6aa0208004a0f9207cccd07037715da587155a. 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/GBEWA2101901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e627c0b87ff8d06dac4516cec6aa0208004a0f9207cccd07037715da587155a. 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/GBEWA2101901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccc65019e47029ce6fcc310216e3d02e05dd004b59056bd809172188c5c5976. 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/CA5KR0033251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ec1866285aeb3b26edac1fcbfbf6a4f507acd70b727cd80f9acbf3a148396c. 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/GBKQU2429207.
Rather Be (Tritonia 468) - Misc.Inc Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884544191501b9ac6d4a69c84e35c08d816d048c8e3b6f581ccf68976a204f24. 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/GBKQU2426667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2477c20f0e3cf325118bf7a2f5994517b51e541934c7b35424d22f2a3f3e48da. 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/GBKQU2426670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847a84cfcd1ebb694447f5729e4d94962e598c6d8e86976cec5b8f64be31b7d5. 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/CA5KR2323390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42336b095e9c2acbfcd7ebefe58282516823df7a12adfb193224334274067530. 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/USDY41958002.
Running from the Rain (with Danni Carra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590558c1ec36b921b71f73f9c5de7fd9833665d890b33dbd29c43511e3f3956a. 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/CA5KR2400839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1cc2aa5435c351d29218ca0606b2830ef78a344b118080aa9fa9f7d130a5de. 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/CA5KR2072491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688280b44a8854b79458e70677a568c81d692564697cbedb8e607d2204bedff2. 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/GBKQU2338307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccc65019e47029ce6fcc310216e3d02e05dd004b59056bd809172188c5c5976. 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/CA5KR0033251.
ASOT 1115 - A State of Trance Episode 1115
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cbf765726fa1b7bf2b82037bcdf46d5ca01de2a32cfe85ecf3c8d710d1cec4. 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/NLF712302960.
The Space Between Two Halves of a Heart (Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169b6ddb50b9eedcb6f797e53983041e4543aa84fa9e37eee1025eb9984c3c97. 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/QZZ8A2364690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef7a42bc008b3c99dc2d0b754ea2ee49a93ff8f090f7975afe8638eaafdaf12. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZZ8A2364698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48127b10c7963e6160164ea334a7dbcc5a186ca91e4fceef9b85b8e28bcf842. 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/QZTV32251368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48127b10c7963e6160164ea334a7dbcc5a186ca91e4fceef9b85b8e28bcf842. 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/QZTV32251368.