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 0xe41f809ae0d921fda1f40a2676e026b77bf1382b97e7fc79854920d3e84bfe6d. 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/24a27116-6162-40b9-87db-5cadd39eca97.json and https://artists.proofprofile.net/proofs/artist/24a27116-6162-40b9-87db-5cadd39eca97.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 0xb13c47dd9226f76c0db4a481f9fafed14bbaf1807cd4edb3bfa5786c52603d28. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2345845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c39d4fea43fa6652ea4c9f9945dd54f2d0af0c15c54dbbea93bb0b2bc6abde. 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/US83Z2238061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e820c1487f209ee4f95d5cbbf0e7171058cfc8b26b44f2683ad6a64182d45fe. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR59R2318007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d73223aaa5753fce9c8100dff6d79d3519f40c8ebf0f6c3a993465ece7b8dc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR59R2318010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798134cd9aefa28bb7b1a9aefb6679baced4add166e291a612e3587205381248. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FR59R2318008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7797d6412aca567adff19318929713bff652a4886e590c1563813278e6aaf5bd. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FR59R2318009.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bcea5d4e38b370428f5dca0230d144ab71d4c7552000f3e6ec2a568b2d3b06. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR59R2318011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd7e44a8a05dc1bcdfd2d05a7012c2e66993bb68b75ffbcea472595348b222e. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/FR59R2318012.
Mind Behind the Ordeal - Kebin van Reeken Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e743d0a53e04f52d448ffb7cc878b4d4af7dc1db4674105e5a4edd6a8eb5ed. 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/US83Z2400462.
Mind Behind the Ordeal - Fabri Lopez Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb3146f169e228d720889c67dc8b7f3a3760a77b3b9d42c911253dd57275ecb. 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/US83Z2400464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5213d61fa00de56b48fc084fed622b73ae356df7d84f19113857e684c87aa8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z2494121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef52575a0dd34a3729e3d8a5379b38fad028d310fba5cfa3fbc63dfeb6b7b8b5. 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/DGA082415687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c582b2964d6db7d0e6522feae98e8b831ef7ad145b90b48a4a5d23fba18d53. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DGA082415685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d57d5057663d241777fcdf86648f5e54145d9fb03fb656889c07d1af848c29. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DGA082415684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2c924a5a548d58f6a97aa5d79ab5299558b7a977476cac4583ea167672c155. 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/US83Z2485975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c03c84f1a93cbef9c524b29aead5dbc5efddbd2599734ded459a7da21184cd. 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/US83Z2485977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf859c74c44abc6ab0e742f36c695713a21afdc611f92a265e15d17b45070169a. 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/UK8QM1400934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d1631e72bcffceae1661bfce4157bf02962451436bd83deb1526c44081c59a. 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/UK8QM1400935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122abdfd7a7a4843f9f454e2c988072cf8530a6bcda40fade390a5b3ff3c07a1. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/UK8QM1400936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240a55f6a5d5ad1d8bcb96c3b5f9491bf270be8d6041fd316446e3a9ade0ed6b. 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/US83Z2468346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fad1777bb7533b74e70efddbe162f4c198b5cef8cb1554c35f170310e9588d7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z2468345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68d5be0719d851a451b3974847d4eecf581c34c20001ba5f78ed3a8b52b1f4e. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/US83Z2468343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb8cee080f5ccc0ccec9f06fd2126a442a37ec19c21f8628ffd4d804dd03ebf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US83Z2466832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c79bc098ce09677c97990f114bdf4ea86a36b0a70e18bbd300291aef5bee49. 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/US83Z2466833.
Watchers of Time (Kebin Van Reeken Remix)
Dreamweaver (Kebin Van Reeken Reinterpretation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93051737159adfbcbf70f9e1442227814ce78a8660aed749eb1216933d23bb53. 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/QZWDE2303795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9658950dd13052ec3029d686c5380eefc20a3c8e51751110cc36330321229f34. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZWDE2303800.
Eclipse (Kebin Van Reeken Reinterpretation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7ffd9a2162c1395bf651664a81a1d4d9fd7ed75cf142d455a45d870fdea86c. 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/NLHR22300521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c829cec01be5982b12037d9964e4aa3b38a6cc4e524c0893dc6b52869fc84a. 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/NLHR22300522.
Ursa Major - Kebin Van Reeken Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e63d373e9dadf4670512fe022f372ad22a004f3a837771128c46eacd12f2e14. 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/US83Z2308228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f3f75c79773652759741be46b12a2961b468c2963790e4524ace1a6f87eba5. 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/US83Z2236388.