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 0xd4b92642156b3335a1ee2fc28db15cb480c5441b200a06446d925148bc6a5c9c. 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/37e78282-dc6e-4bd8-aa0c-55e56c124aec.json and https://artists.proofprofile.net/proofs/artist/37e78282-dc6e-4bd8-aa0c-55e56c124aec.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 0xff76f36c0a9b56ff5c6127fa0140b993997346fbc34938198305944d2b01cc17. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES47F2401221.
Catucando Tudo Nela (Arrochadeira Remix)
Catucando Tudo Nela - Arrochadeira Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11710ec5d44c8e63e7f9e64e47b5d40f51f4087aeeca9decc4cc09c2b127ab9e. 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/US3DF2515028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6bb585eaff3b1140c4648dd4d7c18408b8165c256e59517b3bdc9456debbf1. 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/US3DF2515056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c4d5557c8a6def8388d8082eecec5119bdcb89a7df6aeba6d0a544b2d6c5b8. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/US3DF2528273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a59aeb9e9e04f7c257b376d654ade325ff25cf6e83e077da9ba131530f000d1. 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/US3DF2497554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7deccf90dcfa55a7655156c45f5dffcbfb06c03940eb4dffb35be8428e739904. 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/US3DF2497559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7094e576c998b4ad4ad3d235251e8bc21949053e19f178cb19da319181aa0d48. 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/US3DF2497561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaa771406c20ae40423a80579a2267205f08c8013a9c53ac97c7dff6a1e76a1. 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/US3DF2497562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee8cb65ccbba0c974d16ec3429b6b41fbf69263abe631a25304df76811f35ef. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US3DF2497565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916d6efe347ad1fd3744fd1d8b528fd417ee28e6e9282be6696544f1ef882bdf. 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/QZYFZ2401781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6200c1866be4c6fd142b8cd773506c8a08f39a590b8ff22fefbac978ec9c9d9. 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/ES47F2401228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651d0b541388987d1422718eea4d9dcf03698eb0215531435d4739cb21e2d2d0. 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/USANG2477818.