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 0x9983c62fca11b9c3b4c53eee6b679a584c5e09b8ee4d7a4c3665842fd3a77d15. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c78e9d7-57b4-45f3-8115-cfc03b58f6f7.json and https://artists.proofprofile.net/proofs/artist/1c78e9d7-57b4-45f3-8115-cfc03b58f6f7.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11081e8db0ed972ada8185e48625e427e81934aee0d9b710e37886a36ba80139. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX452491672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854e6b3080503c229e8f4c1767c279935c67b9fddf1dd8a1983a08de78df34c1. 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/FRX452491673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a95ba218018ce40e343fd768301b6dfb2f61d82fb9a3c1a485519ec7e1def8. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRX452491674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a842226f0ffd2a2f24b7b3828a68f83c37b1cacdb7f27e60ab6ff82281cd7a. 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/USHM22345581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11081e8db0ed972ada8185e48625e427e81934aee0d9b710e37886a36ba80139. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FRX452491672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854e6b3080503c229e8f4c1767c279935c67b9fddf1dd8a1983a08de78df34c1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FRX452491673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a95ba218018ce40e343fd768301b6dfb2f61d82fb9a3c1a485519ec7e1def8. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FRX452491674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a842226f0ffd2a2f24b7b3828a68f83c37b1cacdb7f27e60ab6ff82281cd7a. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USHM22345581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbb3865a250247d77e4d5211c1d9dfed5e8f9ae8d76a283504a415b491d5d24. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DGA072435444.
Las Manias - Black to Tropical (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11081e8db0ed972ada8185e48625e427e81934aee0d9b710e37886a36ba80139. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRX452491672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854e6b3080503c229e8f4c1767c279935c67b9fddf1dd8a1983a08de78df34c1. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/FRX452491673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a95ba218018ce40e343fd768301b6dfb2f61d82fb9a3c1a485519ec7e1def8. 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/FRX452491674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a842226f0ffd2a2f24b7b3828a68f83c37b1cacdb7f27e60ab6ff82281cd7a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM22345581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41420728210868f3b92e6759c07b04ed438380a89aa952bb47cb68ed11c3dc02. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DGA092469976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015f84643ccf0c81a07fee362a554b6035458624e6bf79a2212336d7b386dc0e. 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/QM6N22447100.