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 0x6be20e9ffc2e2ead3df4cbef22a64d011fd72b2e614d603130174a995bec8476. 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/61f3e8b6-230f-48d4-bc22-7b633dd55bd8.json and https://artists.proofprofile.net/proofs/artist/61f3e8b6-230f-48d4-bc22-7b633dd55bd8.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 0x54ba3f310298cd7b7f6e981de8ba77c297cc17d4c8dcd85a2ff2674a802ea417. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/BXD1V1600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ce4300fd920ea3b7d668eb39c3c71b679637af6b2e42c3e42af3285b8de14e. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:06:38Z), 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/BXD1V1600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6609f4f6f53b8d9d6ca06abfc3541245469ed7135fd673c07c41549066da0bb. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BXD1V1600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd6deb7e73318a067a69bef2918f7b93d90d85275739dd40491b588c7a472bf. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/BXD1V1600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a60a7de25021fb0e4ee9fa10162ce5d7d02a924d8c47c76003853339f6cc30c. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/BXD1V1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9b9852e03d15524cf1b10a1022513c92477745df8c3ac603a76af717b0a5f8. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:52:17Z), 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/BXD1V1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d117905ac4d00e8196ffda5084996adcb3876fc9a9472cb70f09345efddc62. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BXD1V1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da8217ef900bdeb99d9f6977006f3e5454986f6c3c68a2f1cfaaa2ce72f852c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BXD1V1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fea20a6540ada1b76e3b17ae728184117efb6097e0503fac05e71440bec2d48. 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/BXD1V1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350a5468f3b5b138adadad075f85f3c1cadc7e15d7ed39d08ac282d404304e44. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/BXD1V1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a5ad06122abed0128e8f41a059c8602a78ff414146bf104669237602023fea. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BXD1V1600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c00d300a48917d3c013754678d62bd98903f517a56b440e6a6d7bf6f7fbad6. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BXD1V1600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf7351da4c6194e3c7d6156fcfbd26ddd34e1da91fe7e55a212bbb94b430f8a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BXD1V1600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45e2c372bd7c7002ad3c379a35391e61d5b617fe020515a5abc06344047a5a0. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BXD1V1600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e63255d4fa8ca94c6f43e6185020b0ce2c34554b7d0b60baea6c6400c999d1f. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/BXD1V1700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b33861f82f737115801014ab6ed4a0899aa9e98ab341517b29fbee7d2f922f7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:10:14Z), 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/BXD1V1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5379962bf3261798f80b5d925e2191b0b0e0297e79907f377d9fcf2bfa81a7c. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/BXD1V1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba28e6e8e9840464bc3c9d342da8bde6824bbf41185a0e174f603f23cc799584. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/BXD1V1700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b3e82ff081931f30d6105148fbe5ea09452d23aa4c409cf61214cf60c7f585. 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/BXD1V1700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf383a132f8525e23cdbff29b10469c90550855460cfa05a27219fa743099ca75. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/BXD1V1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe6cc94494d176c02f5c70ee0d3d76a80c2d5076ef9bb3dff84bb3f1f843c7f. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/BXD1V2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8903476a9d9658ec7a1f799b675ae98185fb9fe3fd06fb8bc1646a4cde94d0. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:06:19Z), 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/BXD1V2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc5f5f65fec816ad83f5fd14516852c62e553bf23ca7c8e319e22cd6e487fc8. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/BXD1V2000015.
Ciranda Cirandinha - Petit Allegro I Fast
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225ea0d34a9419e683c7a18b1d8c5006966a68e0c588c1a11c56f45703403664. 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/BXD1V2000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51845fe4b6a6adedc5bcd6ba3b012c7d29b40d6983e845015735a06e574a9da9. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/BXD1V2000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb107afdb75105a855f8f59345cc5dfe8a875654cb87c2399fe259e2724e5d70b. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:31:23Z), 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/BXD1V2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc36813a24040a39668a447f58798154e998dfa2b40e92359fd8582c9654fed2. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:47:25Z), 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/BXD1V2000022.