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 0xc47194855c5ceda815fee2c003dd6dd3e11b36ea4b634dcd1b131a35bb709c94. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fa880d5-7fdb-49f9-b3e2-0af00ea03070.json and https://artists.proofprofile.net/proofs/artist/1fa880d5-7fdb-49f9-b3e2-0af00ea03070.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 0x0223c38dab220c07ca54976c78da3e29a5169dbc7db8fc6d4b171407495c0f48. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/AEA0Q2006576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395546d68204e7a07c848b4a1c2771447af38520da08fa30a39457cbf3e4cc8b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE6XX2172066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e989fc1e2c7571d3e945666882d9a768f9dddbe19911f26084c26f4d79e0c5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:48:36Z), 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/SE6XX2172069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ef5b1d72a7e673ba33dac3e90113a10455d71877e284be161a5c46e273fae4. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/SE6XX2172044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807d7ab4c22c1fa1e2bddbcb265de33d90562da7f90a72c9c90a460c269a906e. 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/SE6XX2172046.
Peina Rohejaite (2021 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5313158ada627baf94fccf749618ba1939febc41e85812a547707bbe26df5e2. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/SE6QE2233755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d1f8e9f12a95152c1521316ed8b846da1ca32793a5895f2b1d59bb5601a196. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SE6QE2233758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143bae5eb6faa136c6a2de43de91e933268179c5cc5ee167855ff8ce37b81c22. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/SE6QE2233759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf4e8fd45906efcf3b63ca8e1816088c8889e1475d990f130b7b57a0877325a. 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/SE6QE2233760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b90e698c3feded0df9a097b5269113600239f32cbe87f36d3eba9ff0fccd45. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SE6QE2233761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4c1d2fb0683807c2a0b943b9af90a63d9ee79dd4779b9a0e9050f59b87f014. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:02:55Z), 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/SE62M2386574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1557920ff9fff3156073df1b938bac2121f3bcb78218985882f641542b914801. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/SE6QE2445545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea93214afc4679b4b2ca5543d295b3a7cde1d4d66ada50f40ca534efa9c5979a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:49:32Z), 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/SE6QE2445547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ec0d379a8fa9bec90565a920cc1f085ba06ac8f9991360e7859f6fad7c4ee5. 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/SE6QE2445548.
Mba´eiko la nde mba´eiko la che - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe624f1c121c303e2e701898c8b5e855f33957d5da82ac3c7c775c4fa826d1661. 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/SE6QE2445550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8fe5b860ddde4c236db471e059e11450cfb42279e78cc3e402a4bf63994b22. 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/SE6XW2403678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2797d8c07979c4948e5428a98a34624fdedaf36971add904a7e8be81e01a7177. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:23:50Z), 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/SE6XY2586291.