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 0x2e22fc00e320982f35541c507ba62318f5f89319e618f68753dd1a6b90e12469. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fcd007de-bda8-415d-a557-d52dbe8f1e78.json and https://artists.proofprofile.net/proofs/artist/fcd007de-bda8-415d-a557-d52dbe8f1e78.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 0xdd4788f4951c1cc34a4ccc67a66988709b0a5cd02e1475b6119bd5f9c313fdfe. 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/BX7MG2200219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa820990f6e7a065b411f35cf1590079fe58a3f82b10b9ff194fb3b8df84845af. 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/BX7MG2200224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34db27429aaac13f91b583ccfbbb471d46649e23963d241c90642c08c1d455b5. 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/BX7MG2200221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078d6f22fef52ba7301f75c989d3f5e8ecb816386a3fa66f19b4c182307073ca. 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/BX7MG2200222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ca2d0af48d83bfae307ae25a8d859bef99cbdc6664e5ff493dacf5fef77fa1. 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/BX7MG2200223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa738652e8a3763cf62d5e1bcf2af0a4bb083736a9bf2e6e8a269a8f929db7dc6. 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/BXQG92100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2866a8f8d6a9b1b44fa1a82e04e1100dcfe951a0c1573ef877abefc6817bb4. 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/BXQG92100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d275275c1e798c5067f0364658446e6043c713f681babc9bdf1224bf443920f. 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/BX4IU2100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe344878e18db6fb9ead630940969310150558183fd466912e5ccf2e72e803c. 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/BXQG92100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2a3771acb251fab7206c9fa735090269ba78a23dcd390db3a04c668de29eb7. 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/BXQG92100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa524e08226595943284d2b2a0a109caf1adaabe41710cdd6ccb03467f0fa268a. 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/BRDEP2400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80d6bcba947bc86eb205d78e639d727babe5905dbfc096b8a051147a126964d. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/BRDEP2400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da1c17e5092e51eea11575cbfa2824c12abbc5e4161f296c838cfd5aa63caef. 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/BRDEP2400205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17344d76050cb6c9258d6a07034def3eb3f600b8216b501ad0de5dc18654adf. 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/BRDEP2400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa8fdb6c50f7ccaebf9924479c017f7e6056ffa4080d2a364b644748bed703f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:49:08Z), 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/BXYXU2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4dd84c0bc29736f7b79b0c0c8acca36c302fc7ad37d2433ddd44f83686730e. 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/BKCCS2200080.
Arcanjo Renegado - Trilha Original de Sany Pitbull
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84725f88f769085ac86974c3c29e039444734ca37731979fbccb9b943d6a90b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/BCAFA2000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa498b8913d9e0e8ffc2dd97810ece7a63ec6cbcca8953000905cfd6615fe6dfe. 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/AUG0H2501015.