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 0x3cbf1afcedf575e61ad6eed9adeb6b5d0c80e39710f4bc025be3b6b47e5c74cb. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3afe69e9-4310-4289-8658-a5cedd3c43a8.json and https://artists.proofprofile.net/proofs/artist/3afe69e9-4310-4289-8658-a5cedd3c43a8.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 0x7b4196144857701799585219a5c6acf7b4e3d732d1a162b0dbcd05b58acc5d0d. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/BRWMB9700055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e8073eee5f9267dbd4905382506a74ebbb03d965904584aa08759c0c6710da. 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/BRWMB9700059.
Giro do Planeta 2023 - Teknobeat Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c165fa548495942217afe4bbba7fa44259bbe5c07ba33104dae8f9c31708c6b. 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/BRVWJ2300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3695faac55f4f6c13736937e7de7e702c6a865b929e7b551e47e4b3e6102f84. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/BRVWJ2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902e5a7aa0894f5419039043cbfde83d488fe33c5300dd68dc149b442e5001d7. 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/BRVWJ2300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf4efb58b36fa30c220017270d37e2abba04e26c6d78a974a3f6db778a24971. 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/BRVWJ2300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b8451763876849b025eaa47d5a53a5e5ebc6e7a4726aed4fdb66c886271571. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/BRVWJ2300057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbce365104a3576288d12757aab48eb99291d59930d6eb6057b49a9542e913e0. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/BRVWJ2300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5667103463a55025ee287210fefca4e7e3d66420af27dd4ee8fb7891dfa95b3. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/BRVWJ2300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89afbac42a9400152f3cf3d42db8a8782ea3a7f943adb6fa221faa8153c7ef72. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BRVWJ2300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ae662a8137900fcbc2e498d6fef223dd6478f4085e65a24a71f62be551015a. 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/BRVWJ2300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499badae4b8522caba43cddd538beed298cbe667a49bc91acfa081bcada6fb21. 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/BRVWJ2300192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9b682e6f0a5cd451f54a422b3636ab6445968e2d1a8e42132b11eb12b11a4c. 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/BRVWJ2300193.