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 0xb27b14b91488bd061eb9804ea6d65db214c838df3d4c0d197991f11bd04b1e74. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22dddb21-f09d-46a7-aee9-2a9f3665c641.json and https://artists.proofprofile.net/proofs/artist/22dddb21-f09d-46a7-aee9-2a9f3665c641.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 0xd0814bcbd4750ff54b69a7c4572f2eab4eae8ffacc535002924a2c807a759650. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZES61973985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb937b3b880aca4904dda0425116c4906300076b440d0fd89495680dc07b4ea29. 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/QZES71975399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0eea1a014d9332d558d8a171e01ab5ef25a4cf64759a7236ff425edd053b139. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZES71975400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f3a936189d8e01d546fa15f1862aea5f9765ec0f5ca784eedbda713babbd1b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:48:48Z), 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/QZES71975402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be3c24b6e7ea0f2b543f7a498e3231b9a45e9ad067f5e60fef508346581be67. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZES71975403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94aae2e2bc49769cd5a468c6577a4762f5f1a37fc3fac9cfb82712336c64f564. 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/QZES61973682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac3008daee1b0928aab56016fcf5afd5a6f1c1c24df8bd21736ad5d19ef7ac6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES71975405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0814bcbd4750ff54b69a7c4572f2eab4eae8ffacc535002924a2c807a759650. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZES61973985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb937b3b880aca4904dda0425116c4906300076b440d0fd89495680dc07b4ea29. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES71975399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0eea1a014d9332d558d8a171e01ab5ef25a4cf64759a7236ff425edd053b139. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZES71975400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f3a936189d8e01d546fa15f1862aea5f9765ec0f5ca784eedbda713babbd1b. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:16:53Z), 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/QZES71975402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be3c24b6e7ea0f2b543f7a498e3231b9a45e9ad067f5e60fef508346581be67. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZES71975403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94aae2e2bc49769cd5a468c6577a4762f5f1a37fc3fac9cfb82712336c64f564. 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/QZES61973682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da53c69f31101f6f5425fae7a12ccd8ae7d8fa8d8056a9566a1fd4aca34df8d. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZES71948160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5063b8a0a022ff6adfd2b7179bf5c7df10f88e1bc5858d4484c813fd6ac8cb9f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZES71975404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac3008daee1b0928aab56016fcf5afd5a6f1c1c24df8bd21736ad5d19ef7ac6. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZES71975405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c26bcf1662c4d3de28737601d20bce202a4a9d2d44014e014ef86ab650fc86e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZK6Q1957391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a81b0b385086d2258822c5413c22c369147087130030096e85e939c5c488057. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZK6Q1957396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c26bcf1662c4d3de28737601d20bce202a4a9d2d44014e014ef86ab650fc86e. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZK6Q1957391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a81b0b385086d2258822c5413c22c369147087130030096e85e939c5c488057. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZK6Q1957396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5b1d0e7a33f918abbdd6e840d1416c5c1538646a746217657115309e66f6cd. 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/QZHNA2106663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5b1d0e7a33f918abbdd6e840d1416c5c1538646a746217657115309e66f6cd. 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/QZHNA2106663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70bd35279ce74acb6d880ad7cbd6fdbbbf40118d1d0b387435e05c81d2ce7d8. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:23:16Z), 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/QZK6L2169698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4366ffd5780b02b72dc3bc8c90b659f0286d1b61e30d544f0bef81ecdef44a3. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZK6L2169699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80011a4f6d346366f2e27358fe6316688f47a4340789b5b5f9ff0f9161970dfa. 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/QZK6L2169700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70bd35279ce74acb6d880ad7cbd6fdbbbf40118d1d0b387435e05c81d2ce7d8. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:27:20Z), 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/QZK6L2169698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80011a4f6d346366f2e27358fe6316688f47a4340789b5b5f9ff0f9161970dfa. 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/QZK6L2169700.
Soundtrack (Soundtrack: Un Tributo a División Minúscula)
Soundtrack - Soundtrack: Un Tributo a División Minúscula
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641f0f68f2ba43bd583c15f582d3d9bfdc125ec66374f4aa509db66c6c272500. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QM7282444310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51b96605abcb7d203ecf08bee59b55cf050b88d9e1b93899ad4bfe93859b784. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/MXD782403684.
Soundtrack: Un Tributo a División Minúscula (Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641f0f68f2ba43bd583c15f582d3d9bfdc125ec66374f4aa509db66c6c272500. 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/QM7282444310.