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 0xe8a3d90c4e0572340f44f33ed4dfa14367b9e12b89e4dc23c87ac9eca06dec1f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a165bba-9a85-42a3-a20d-b905bf1a5fc6.json and https://artists.proofprofile.net/proofs/artist/9a165bba-9a85-42a3-a20d-b905bf1a5fc6.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 0x80c9bda87bf63a32b4a901eb4a3c35782299acbbb20a404ed3f02c5f73a936a6. 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/QZNWV2473818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4a05e9162b7118b0ce0ba4a2bf7b11b5c7b8f3286367996fdd9b95628e49a4. 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/TCAFX2146561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb90585e8ee633a322ee1f84c6fcce0ad238681ddad3d652bade95aa24784d2. 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/TCAFX2146571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c360daa2a657090e60f5ebb6ffe6b8a8af59d9ea51ed07860174b78d671da4. 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/TCACI1595309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bb02932cda50d57d991948592244cee772f71996346323296127c055d0d623. 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/TCACI1595313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763017261683a9441db82b33af2c88bf69c35f0f8275a9c16e70053ce6708e71. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/TCACI1595321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07f5c670ce93ae6d92ce1b5e577e4551c5a99490e4bab74430d47de54c7370a. 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/TCACC1463235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a007ccd250ea036d9ed4d71c3e3d1711dbb270b8b1ca0f75b5b24afaa971c4d. 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/TCACC1463236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d628e9a9c85c889e16308bbd4612ea71910c73b581ff8da4546603ad4bc8948. 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/TCACC1463237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48fa7e238e62025fdf2eaa14241b7f3cd19d8673bb99c10a4c8376ca213b76d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCACC1463239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54acfe42cef7af1eee694618a858ff3a3cb75c0d3871ad706d91073796b226f. 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/TCACC1463240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8d547cec5fd7a0b0d257430a48358d3bb60871c334dc63d1be9c52731a36be. 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/TCAGN2223581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d725513107b19938b02778a24c23becb78fa91742786b4bc28a8a59fd77d7b. 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/TCAGN2223599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67114cec9b33af7a27f022646dc374840efdfe6991d1e124b38be2ebd68f6033. 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/USCGJ1399292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac97c41a017001a10c17bcb3c9d081b955eca76c33b954f1a3c7c78dc3821b8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5XG2143563.
Sleng Shot Productions : Eradicate Riddim
Human Being (John Roy Remix Humanoid Mix)