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 0x0f47463c14001f85d476c3b8dd22ad05edef2d090a31e1ca985886d9d5bec77f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5d44383-6b6a-4838-831a-eeb915d09e2c.json and https://artists.proofprofile.net/proofs/artist/a5d44383-6b6a-4838-831a-eeb915d09e2c.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 0x4578c494231ce3244ecf13848b6d5ab34ff6042bfad5f2e354984b767a247aab. 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/ARF102200411.
Para Ti (feat. Maikel Delacalle & Omar Varela)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034b78c432c0937c8444c07efad541326a8716cd7cd994a2a555b7b1b228d6ba. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ARF102300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74134a467b241049e7d33dcb6637d36fefa03f9f12ebbc2cd7f45e9cd7b3cd7. 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/ARF102300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec5411c3372c0950cc1e0cc196f9641e869456b01ce962e87ab805e1095e728. 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/ES5022301118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e85e36b1dde568dd66829ce9d31e9808fdf024ae9da6dc14138286327b93a1c. 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/BK4DA2326116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536a7949b145bbb1be3a8c6856707082ede9a07c376aef678ade319dab92378a. 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/ARF102400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea5f2a7afc4bec8e24bb9e8e58629a6994a5035c8bb03f4453ae05eb895d3b0. 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/ARF102400089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93ced25f8adf5bb606696de9795ab9b31a6dd5ce02147786432f260b8938e59. 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/UYM122400852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd311dcdc75b082933ae667e395d93efb90429b9f84e20a3cc0663a7eb651936f. 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/ARF102200308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a2374d2c6f4a943819872bd6314b0163947e4c5dbaaf4f7984f80c3d50aaec. 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/ARF102300342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c407a25a7957e579e7a49c5ecf0c189dd590efc83f54bffc3b77059da1a947c. 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/ARF102300273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e5ee130a0580870256166b3737bb349975033de43f16702528b1421a832994. 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/ESUM72301394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce1132b91d232135910a2ced98f3e91373a7f0903d55868b44cd085668f5ab1. 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/ARF102200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b343efdd0a89386b0cf2a33eade7b867a9ab394d3ff36dec24ef9cf70cdfde. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ARF102100359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5078a65e7a93e2e7fa604ef534d1e943f3d6e8e092d1c784f435bee81df725. 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/QMDA62136509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95b1d4d950f18ca51156d5a7284aa3093add697dc35d57951ed0c5cce6fda3f. 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/ARF102100309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a7f0ccf8ebe23f829d2160a97d969337cd83e9fd25d9507405202357e5eb0c. 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/ARF102100221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4c68801d18f253062416d849299820812d69b18aecd873a5dd2862b435458e. 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/ARF102100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa9ae32ba86f3786de4e587a11173bde5e7d0162eb1da4f77b3846492a46546. 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/ARF102000317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b017fa7009f609fe18f62984fe7e9ed605fef694b2ed81ee651beb1a4afe165. 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/QZHZ52033656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92277b3d4e36fd569c956f38c99b1a6f0abf208ac990a90af926a7baa92a809. 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/QZES92032236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d6308833d400c1c10a097aee00aa14abff8c359e0b33e238220b5bc91ab1a0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZES52014357.