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 0x2fd4d5ab7f9637c5d247576341dd299258358cfc951aa80505285265bdbe3747. 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/d4af2803-9c9c-4fe1-8198-baeb0b793370.json and https://artists.proofprofile.net/proofs/artist/d4af2803-9c9c-4fe1-8198-baeb0b793370.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 0xef0da0069d20c7a60ad2a44c6046135a8110ce7403ff6b35da3084cf703e4c77. 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/QZW9K2337909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f90911f2bb9a742e24ec2ed04abf36913214d01fe8726e82a627d9f8c0587bf. 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/AR5UH2300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a6146b63cb8d76b12be76abc65ba894b3295a8c83d36d3f8819408f368383e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QM3DF2122158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506b158154cc3dd5c414cdf00468cf1a2acc6df788ed8b4e0dd818df8246ffac. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARG991033812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbe1ac44e2bc4c1be6a218d67780fbc1bf7554b70ac764519f6bc9dc926417f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ESA012146512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfca1e20f0586729c3d4ea288da60c462560193b6babbf58130ab9fff9a9c6d3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AR5UH2300533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1fb4258d16a3dbeaf5c1c5a77e03e53c68aa31caa5582dbd90bd1832ae242b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AR5UH2300305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa9aefed15db914cf72d81b8f5263362a76a3c069242634c065756227d0ced9. 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/AR5UH2301643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab082039d77a3771a3348ff289e4d8f90140e4345098427767628cda70f7bd41. 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/QZTPX2253865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c6a564ab24132530053cc5e90c01e076a0ee4744bfe3b0a7b15bc78e4185e1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZW9K2252704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd803e52a0b73282c1a9596fd71bb3af3e54cd1699d3722929d47a4e1feb51733. 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/ZZOPM2119227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612fc287614521b973a320c2dadfa8984198810cb0b6d57282b6a8951c19d50d. 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/QMDA61815264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f7c67a4111cce477230c7e5d3bd027152d21abc4e8871ab866a298b326ebf7. 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/QZMBZ2200055.
Me Voy (Remix) [feat. L-Gante, Kaleb Di Masi, Tirri La Roca, Cotto Rng, HDR, DJ Alex, Omar Varela, Preciau]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d39107080e89481d968be3b25df688914f363d683b3a388ae4ca23a4f9e05f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AR5UH2301814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f18eb1f5b1db026e8d313879f36f328fe1ffd25b2727cec91c1b06bafdf4ff. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AR5UH2301315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67578c51d0a39ae4b8260d1ccd7b8ba489cc7841ea2cc21a5187ab4a96a823a. 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/QZHZ52263598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c54e2494b4f627febcef3054b9c6262895dc8fb115a9a09016fa4615a24110. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMBZ91722412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c819f078dd2b684d8698e7645b8d072158ff0feebcb03299000c909c772acb5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TW1723146.