1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1e783cb2fb72033f946a157e741a222f418506c6f97a84c29421c372381b41d0. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2dbfe58-94f0-41ab-8598-a23493904796.json and https://artists.proofprofile.net/proofs/artist/f2dbfe58-94f0-41ab-8598-a23493904796.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 → block OTSBitcoinBlock must exist at that height 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 0xe02c837821648549aef77023bbd254f066a889d54898fcd126dae13e07d9cc93. 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/CA5KR1551743.
El Horizonte Roberto Firpo - Original Mix
Que No Sepan Las Estrellas - Original Mix
Cuecas chapacas (La bolivianita - La caraqueña)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234d8b791c9bf9d6fe646648abb00f1446883fb1d2695ae8283656d26367684e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ARJ821000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053003b2e19c5d9517dd012766f8dad382ea022a7b2f53139c4a9b553520e368. 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/QMDA71552894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19578b4fabff1d1fccab4747d9bd4d282bc2d019ea2dd7bebf228cc9db6f996c. 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/QMDA71552897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4abf3be2463846a4d93e82565821521ea83dfbf18553ebac276ad98b10ffbd6. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/QMDA71552898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3962ba0847b91cc564106438e6109c0b25b1c79086b027ba4d4c04161259b15. 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/QMDA71552901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1df606114103253d0f0f769b6335e146099e3e023ba15b5cf9fba0b71419db. 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/QMDA71552903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d772f8ca12e5ed38db4a271680ae3c0bcc9a35b2e1d02a33dfd6a69ae37b8e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBKPL2028362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8db4cb6ac208db2049e22fd99164a6830594def91b806cdc05a1f023a8d04d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBLFP2234704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d2f2da490e2bad8acc11abfe330517c501722bd69472546bbe2f52273387d1. 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/GBLFP2234709.