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 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 0x4b000d49350a4655f8e4da8cc9ec7c2dfd8b293af406758436e42c034c7629fe. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbd2e575-2579-41df-82bb-2b02ab2d617d.json and https://artists.proofprofile.net/proofs/artist/cbd2e575-2579-41df-82bb-2b02ab2d617d.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 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 0xb74b4f4a38f2d9a2ddca45672215ffd847e7c2671a11082b2e483ab737bee2cb. 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/DEPI82306447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5515134425e9a9f6290e6b4ce3f00530d2eead9e9bc694c8802b96127cf74d17. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEPI82306705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5db791f3e4655cd7ce30ef13b586161260600681ef7296debf23fcc4d2d994b. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEPI82301901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e854f1136d7f34221409dd90ff9a287babcfc865d277201ea68c806d0e92fc. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEPI82206919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fa6ad67ad96a7f8bbee9aa48ca66c85b19204fb56b1d278fdc1eb2d3e176c5. 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/DEPI82302256.
Tonight It's Party Time (Ghostbusterz Bounce Mix)
Billy's House Drumz (Ghostbusterz Club Mix)
Billy's House Drumz - Ghostbusterz Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e7065d4ded9d7005dd0098e578907e48aa81021d8f7755e5584789a7c0e2d9. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEH742301837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2164a542447639666728de40977d585db47d0c9681846cdcc22211f31bd4048d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEH742301740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509beb544f174cc4276a6a16b524db4599febaeef0b0e2fb92969a6e5d099c79. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBBL71900052.
Save Your Breath (Luca Debonaire Club Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f06704ef0feaf8acae66299055f021570dd27d775003b5b57077f6bdd57661. 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/GBNAR1800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cad7e23e00badf2be47e5fcd276f4b6489878732d80a40299fcbaa0544b105. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBNAR1800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f95d4aa8d9b45f255e7bea7ef42a5f35e2cda6ee71c304ef5e65b4d411fd60f. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/DEPR31900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3809aaad72ad424196da7c3de34c4adc6a835304dff2d01ac058e66f702c22ec. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/DEPR31800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481bee53dfedd6f12da579246b5c97db1be8d167bfcccccd0efa34bb61b4dca4. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/DEW871803476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39919913ec011fdc4af14874ac5115763e9041a9f8ea6c23d0292d7f471e777. 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/DEW871803477.