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 0xd2ba7c5dcab9627929f7a2ee8a746b8eb979057b896a9769d511c6e9ebb32c22. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96dfdfe0-fb84-4849-a5b3-94426bd0424c.json and https://artists.proofprofile.net/proofs/artist/96dfdfe0-fb84-4849-a5b3-94426bd0424c.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 0x40b199818532e70e55d1918d617eaab5ae5ea9921ad33f664c996367a7b22b59. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/MX2832313415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610e2edaf0d502eb941d1a0497af03bef4ec1fe545515490c314b7b3f7e4b09d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/MX2832314895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf810ffed2e3537329c16acedfec7fe10689e9b4fa700493a6fb70d397e27ca7. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/MX2832324203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeff642b1d8d5c2e6044c73b08cbab475b02db9e03e672494420e88f2a0e7d52. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/MX2832324204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb59bda41e452aaf26710398ddc923d96bb41954214861f7a1e34dedc2f38f86. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/MX2832336666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563afd33b82b1524e8267f9f7bd73721681d21a7e057722a420d104b827c4282. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/MX2832404266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33dd6f089f007192cd82c5e54d9cdd3b1897c43e2d067b51e4e91eb33798bee9. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/MX2832408416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad07db5c454476f08592a8e3b1eeb170573665dd2f09e02b89e2633d5c5e3e1d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/MX2832408476.
Mix Llorarás - Sé Que Te Amo - Adiós al Amor (En Vivo)
Mix Llorarás - Sé Que Te Amo - Adiós al Amor - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea0400098c7091d760678df2bf8ab6ef9a58db3736e0eca279c03008598fc5e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/MX2832409381.
Tu Eres - Bella Ilusión - Sólo Recuerdos (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232ed9766f97fa2dbd3a6ad04ac819443ba0c51703b031903dc01d3d2c5ca7ce. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/MX2832438900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e64ee8dd598793b4a02ed2a19d416430543cf34c1b0e3e52aae66f0839af76c. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/MX2832525753.