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 0x297130b473273a1160d7432b84682b2a6099e4e74189224ba8906d01ed8e091b. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15f4c722-1653-4f9e-8816-b89e16a2b6f6.json and https://artists.proofprofile.net/proofs/artist/15f4c722-1653-4f9e-8816-b89e16a2b6f6.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 0x4cc4c5a4134946addf2c403f6894b54c8f46dbdaa6bdb25e865c7c3c7f697ac4. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:08:51Z), 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/QZZ7V2589387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ec482b13bd5646e927865f5b75d482b1ff0b384f14de0e66ad8a184204adc6. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QT3F52593374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eff6d72ebed4bb02cb07f8ab13db451ee961e67146e3ad448858bb2fa198468. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/QT3F62553688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc1cfd0baa5d69b77f74d7587fbc06974c1f44742997ca9a016e0f3ab47b2f7. 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/QT3F62551205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bed1aacce69f2fc3049eadbc15ea363c0868f8c3b633ee2fef921f0fba886f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QT3F62553696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39a0342f6b6a2c8f2208b4f1558997face59a57e1b0b7ed8042ef8b7d78456a. 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/QT3F62553691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461ad7e4f3898323d51c64b28dc112f82b71714bb4c4ab526e24867f315dcfa1. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QT3F62578693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f8ba794398c88a267f0ae99be26d9f330f8ef8429a7fa0265f602b492416ec. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/QT3FB2509932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3e733e12b226d615a29412763f45c9c1965a877023e4ee59466659e02487ef. 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/QT3FB2563016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8c66e4e64ebee5d219b748becc399de4196305548feec3a7569d839fec3751. 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/QT3FB2570167.
Soy La Que Viene Después De La Palabra Perfección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b6bc48d9d34b12b8680df40b4b6fd49a27f740e67acc69d3d76cc0cbc63610. 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/QT3FD2596807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12019bb654f7132406653096d619c7c64a9c8b4066895bea0cea95417956c70b. 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/QT6EC2568552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a2a6245f0b40898d4db3cb97914ccd434d1a35231889fd0fe2572b4b76d89d. 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/QT6EF2521520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e144cecaf1574e51813f732c9a26208727988acb861791347bb958fa56e14e1. 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/QT6EF2593440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747064e9b42a9c28d53c2c06a5770d4d34455aabe3d366a0ba3838fb3488e3df. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QT6EU2546647.