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 0xe25d499fc8e9a122c2b42984d14964ab3c469a721073e0f1f62749d6e58b22a7. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5882d36-1a3d-4d2c-9257-405d81e8d1a3.json and https://artists.proofprofile.net/proofs/artist/c5882d36-1a3d-4d2c-9257-405d81e8d1a3.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 0xab3db8cde38228211078acd21af282fe2ba455aed2ca66c336591ac52d806c42. 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/USBEM0593501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b39eb87e2ecf1a77f1a04c4cd5c86d597216a9ae4b42a23be56b5ad6faa865. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBEM1100185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6986b284fe4ee3ba6458cb31fa3635c1dec21ac86b5923013538e8499b60ba01. 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/USWR30912213.
Micmac Original 12 Inch Club Versions volume 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b366a5ed676b85d65db367f07db02832d42ab7e698e2edf33f842a27b6269ea. 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/USBEM1100493.
Micmac's Greatest Freestyle Hits! volume 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3efa8a61dbb985a73d898945c8ed79ba4e3ee9f93d201e83a87a7771b74cd0. 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/USBEM1100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffa9f8d1bab925985f7e10c45d0b8eb7478f39eda99ac4a0655161c094bd87b. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USBEM7594616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93373cea40c2aff384f695cf96d49f92060539a6a08ef32121d49c6f4e77d387. 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/USBEM7594703.
Micmac Dance Party, Vol. 3: Mixed by DJ Mickey Garcia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e353558c90e11014f6fce2076a98adaaa42859929fffe720d50dd4c6142336e. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USBEM1100407.
Fallen Angel - Freddy "The Edit" Rivera Extreme Edits Version
Edits Gone Wild II by Freddy "The Edit" Rivera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923e23fc161bccc4de075394361621d4eb9c6018175097f7e2abd099af6a302f. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USBEM1200031.
Micmac Dance Party volume 1 - mixed by DJ Mickey Garcia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3feabcb1deed66cf4ce7772631c6b00c04dc893d02a1342ccc9479b636226f. 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/USBEM1100446.