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 0x51231d0d3f8cbefeca011b511b1b88c3db9b18ecf7d680a2e691e4eaea1904d8. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f83fdef2-326a-4827-8fb5-65ab1c31fb65.json and https://artists.proofprofile.net/proofs/artist/f83fdef2-326a-4827-8fb5-65ab1c31fb65.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 0x5e8348dada795e44122e74e378818bcb220f7e9fe44372c2855fef49dcafebd8. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/TCJPG1728422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b52177f4698539e487d3c667b8f08880bd63950ff082a61b805f1bb761859d8. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/TCJPG1728419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b981defd176c04f9325d8fc6ef5ef3b892e2614f17ca4b8ece3150411b6d9e. 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/TCJPG1728420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce47a512c36a5b73a5e55635709b51b159d47a3fd23b50c34a34c8de2919bf26. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:36:52Z), 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/TCJPG1728421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb73dc5d9cb36335ef649bc26145e8e836f6999116aad3f8ecec3ba3ff6f1aab. 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/TCJPJ1923355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd817947dda685dd0539902a0b3199935cac83507c20362d50297f8fd6244a6ce. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:53:59Z), 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/TCJPP2119594.
One Step Over (feat. Jonathan Thorpenberg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc4b9df6ade310e6dd599c02f896b528e60279ad2576499282978f05bc74815. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/TCJPR2268221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785cf8b908b5c7087814ba044d1bb848649d129e5599989e7a1a3dee043fb68f. 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/TCJPT2201375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1467fa1c2444f6a59217e61c320a659ecd928bba3cde9a695828ad98efccec5. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZTAW2292018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3c5b8d2befe8650f418b92d03f320550a765a18890f01c57fc9c91b437d0fd. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/TCJPV2362187.
Breath of Air (feat. Matt Sosa & Across The White Water Tower)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7136bb3ab73e563d0bd8f618a02dd2e5082daa6e265ab4be05e15687536f016. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCJPY2494683.
Aquashadow (feat. Gabriele Sampieri & The Avalanche Diaries)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112383083e765f7212fc8922e68b705be02c1bcc19b748c86cff8813e7518d91. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPA2449186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e69ee378da6b162624860e79921d6d618c14badede7f4f59eff0f3fb9651cf. 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/TCJPA2469773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112383083e765f7212fc8922e68b705be02c1bcc19b748c86cff8813e7518d91. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPA2449186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893956bee084a8800582cde43e99548d2024db24f2d34c44bf7d4fb2cd9681a0. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/TCJPB2475574.
Monochrome Autumn (feat. Leons Massacre & Alex Rivers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3687eda1f591367704b20448f4b4f3f25fcc3298daa94111dec196c06c4c089c. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:45:52Z), 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/TCJPC2418865.
Catch the Sunlight (feat. Life Right Now & Justin DiMarco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50c73f9d6681a8255be2670451b987f8c3f1ae07365a4f970261aa10402d551. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:06:58Z), 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/TCJPC2447593.
Through the Snowstorm (feat. Right Here Right Now & Drake Shirley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3644da272f70ba418297c2f73eb55466ba1661d4585665d0d3bddc8db17289a2. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCJPC2447605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cc15b63717e17767fd4edae93e97c9647716f9fdeade8d0f2ea1175792ffd1. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/TCJPE2567822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27afaed8b6da8659c2e7b9ab3edcd9e7a5fbbb2e0c732208720c5f3993549cbd. 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/QM6N22345668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05bbbef8467f050728e5e70e4f2a80fbf6c922f7add0d1273dee8b5640fbeed. 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/FR96X2453973.