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 0xd713a1228b5e59cea1d1e3857b27699947a12f56a8ee385009abc6197f08c643. 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/517c78b0-c205-4945-b489-0f954689bb0c.json and https://artists.proofprofile.net/proofs/artist/517c78b0-c205-4945-b489-0f954689bb0c.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 0xeafa95c754d8b41fd80b28710633a4402d334a5faf4a98a5865f1d193b1cf2cb. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/UYM122105062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18b4ea6df8ded46f5b472b6f1da3e1fd5aacc5708a5b4415525110995bf7173. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UYM123000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98a5a42ac70ee59c6b5e6a8c98cd64f06c306b2ed2c9b97110b30696582d11d. 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/UYM123000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5066879d37b97965315d99ac6b1a7a7f87fbe3a9fceabe3230543329fb5cdd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UYM123000299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d8ccf7fc0ebf6a6f284628c745e3e47c7466c551669b76b2a02dc7663bda52. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/UYM122400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761d4058e26fa2e99fa84f1c115256f285f82a864771efd55897bb6b83ed6d4b. 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/UYM122401920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4566c64ee3d2cbed7ca8294ad86fc2bce3b85d01b12813af88d5e4aabcfb699. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/UYM122500103.
Mix Beéle: No Tiene Sentido / Si Te Pillara / Yo y Tú
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8e4df26d7d71bc441110e134ad9083fc19ff8813e8bb4c70eb26a926309f4d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:52:48Z), 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/UYM122501744.
Mix Ozuna (Caramelo / Se Preparó / Vaina Loca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a261c92609c511b99dd38f81faaceaee12cd3cbc6d659a0f37cb1fe4a1f7a6. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:31:53Z), 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/UYM122501755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1c9e23a3912f3248d6a706a5f8b8bb5069729a255943c7e33c85ac54386ec9. 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/UYM123000119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03a87ded009eda3407c4925799fb4260d0a832c629b8cde0e01aef87262c5bc. 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/UYM122400115.