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 0xbbd9c933b5b197970afa58641a8fcd6ab38d51ce84a9e321c4762073f2f13588. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c645d771-fd00-4183-85b2-2c5221871ba8.json and https://artists.proofprofile.net/proofs/artist/c645d771-fd00-4183-85b2-2c5221871ba8.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 0xff3c90dbbd8ceec9ab2c3e0501ac6350ff33da8b91eebeee579b3c4eb47fa2c1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCABG1288450.
Hacedor De Milagros (feat. Steve Cordon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321595125a85812472f165ac82278ce2f5e51e6fff4780f46bfbfd6ae4fd3084. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCABG1288455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23e882ae0c6f939c64148d1b94d473da24561cab1602f6eba8cc80cc345ecdf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCABG1288458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d82c4387bca17f02b5bc66b70592007837cb2b03a3e2312d791ac8b139f67cf. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/TCABG1288460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bb56ca2a7b00a0bbabd4165c3046d47a9fb618110e7009a674be1cedcfb4d5. 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/TCABG1288451.
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
Tu Cambiaste (feat. Bryan Canales (Del Grupo Audience of One))
Bryan Canales (Del Grupo Audience Of One)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7416de84a6b8aa861a96933ac6845848ed6f9694a85769c5d8a751fe0709641c. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCABG1288454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7a91cf8104e6334551f113443cc63011773f12101b948cfb609758771c389c. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/TCABG1288456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef15da3cf0944cc8b69c0fc8ad883fce9f5b00119c53903f38058fc75f6c67fe. 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/USRMC0610456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7421f1886e03b2bd0c441e6c70343f9f8856201a116f92e858684dfafcfa342a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USRMC0610459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5908eb51e3a201930fd329a0aed86f5aacc9e0a663d7bebdd9da62c8071afb. 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/USRMC0610460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ced8c818b5c3adb6e44be1d2b8a31b859540336eb7261a8d7352c7297207d30. 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/USRMC0610461.
Al único que adoro (feat. Natalie Billini y Eric López)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16baca49e5ae6d19e8d985cae879554ec7bca1ff739aad56dea8b0dd7f74118. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USRMC0610462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b3a0424a3295734c10ed0fc62a5c7f50b82c1e3e5aea29f2841125e5177190. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USRMC0610457.
Sólo para ti (feat. Iván y Ab) - Includes Reaggeton
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee36638fa23bb6b19310a72f54783e41bfabb3dc1b037f0b23a2aa098484d51b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USRMC0610458.
El amor de mi vida - Feat. Carlos Carcache
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdb6af5b3816fccd419043018fd632b3696f294fa5181be62c5f328d4674ffd. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/USRMC0610463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337024d1df34f9f9d07c043d98d3188329a1e7c4621e34e85b01b1fe3fb22848. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USRMC0610464.