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 0xbde08c60ba6cec3ee3df7469041cd13c311478969accec6f108b8ac20b3dedab. 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/7e75f206-cc55-485f-9414-c9cd938d4a83.json and https://artists.proofprofile.net/proofs/artist/7e75f206-cc55-485f-9414-c9cd938d4a83.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 0x47e9e95b93a9ca4d9613653aeffd337037a4268125fddd345d5963a7fc98c715. 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/QZNJY2462176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1639f84c67ce178e870890f438c6aa05a3e3c5316335b8c1f27fa08c194e0627. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZW9K2481050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000e17b7fb7ea86f28082c7d65d6205181bf758ab015c3c871cf08b0b4f53e7f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/BKXXA2400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e451b479a0388fd7745b486d8bc6792aead414ae2c43ab9bcc87dcea9c6fee. 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/QZGLM2565541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5230053005b2f682de5e03ff37aca4970aab7892f121bb2a3f97eac2526d72e2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BKXXA2500020.
Te Trouxe Um Presente (feat. Greezy, Bury)
Próximo Voo (feat. Enzo Cello, Wall Hein, Bymd.wav)
MadrugaDama (feat. Fiore DJ, Urano Og, Thurts)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775c6a0020133253e3f2f63ce126d57d369973da9691fef6a9d8b725843c5f4c. 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/QZ5AB2313051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c35487120e3d78fe7cb708f5d51e11bf969c731cc3c1601575f0b67ebdbbe4. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/QZ5AB2313049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24279c68895b4d3fc48a43b64e7cae2134bedca559f1b9e64f737d549befd1d. 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/QZ5AB2313050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc685aed1eed673d918579552072bc11940766e9cc3e71bcab40ad1d4416b7eea. 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/BXG6R2300888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92240604910f1c4c8a907e54ac0c0775725e3757423e9af0c30c4b5fcc73ce85. 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/BKXXA2500009.
Set Xaolin "Bandida" (feat. Porfs, Cassianx, Kaéssi, Mc Bululu e Nagui)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa322400003db6ae31b97a2f511edc72ae838684dab79f0463e59dd89c0dd8524. 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/BRWMB2201286.