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 0x628ac990f73d54693f337b34359bcb1b124a3289e50069567c37ff4e21c33498. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/effd089d-9f93-4828-97fc-ea3ef2c37731.json and https://artists.proofprofile.net/proofs/artist/effd089d-9f93-4828-97fc-ea3ef2c37731.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Can't Let You Go (Jack N' Brothas & Iosupastar Remixes)
I Can't Let You Go - Mijangos AfroSoul Mix
I Can't Let You Go (Mijangos & Inaky Garcia Remixes)
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 0xaefc36bfa009b513e1b9c9af5ac9bd9d1a00bf8025ecaf4263968292cccb6565. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:29:45Z), 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/GBLV62002478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9ab9d9ece680aa60b9cca6e7b51a05658c2a3386445a8880a25bf5681abc17. 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/GBKQU2079440.
Não dá Mais - Nikos Diamantopoulos Dub Mix [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e98e4e0fc9dbba9ed029a72e7ea60dc2c24b07f432934e954b1ab94210fe5e0. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/DEN062100542.
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
Beira Mar / Arre Burro / No Dia em Que o Rei Fez Anos / Ó Santo Amaro / Balada do 6º Ano Médico - 1958
José Calvário, The London Symphony Orchestra - Saudades, Vol. III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14ed3bb590925060254fca7bc9ec9c6f39c7373d3fcac11e9390a4039476503. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/PT5DZ2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c65383d2c83a108343c6933c39fb9e717f040aece4a2c8618c030d60b0dece. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBLV62002479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b324a56a66834620e5be4f5076f54a6f6b4f50b7388aae05793f7e072eef756. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBKQU2079442.