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 0x36cbed287fe2598b72ff0d23893e5927b244068b5cbefa0c5548ec68cd60198b. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e348db6c-5641-48a8-8cbd-852770cc3ad2.json and https://artists.proofprofile.net/proofs/artist/e348db6c-5641-48a8-8cbd-852770cc3ad2.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 0x41f4ef1ccfd980017f9e7a5834c15a7b6fe4d10ba32aa198af62475f813e1ae6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BRIU72100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2982ac2e1d47be5d41bb8d1f95529e0ee1fa0de1a43aa1e50a05f45017c9cc49. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BRIU72100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee24d7dc9933a1c5543c9aee58fe4cc4ec2bd9f17fc2b5c2186bf8fab8f3b12. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BRIU72100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6aac114fd728fa1d9694c1ad3daf57859ff80028a13c9f630348dc08e9f5168. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/BRIU72100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf812a3f7e12eaab558276e89feae44986656257922c84253b2feb76a22324043. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/BRIU72200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe277eec5b68cf6205bb3d1f5a5fa910ef72f66535fc983e43e56e907b945255d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:48:08Z), 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/BRUI72220002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee683d0c30f6f2a574dd56c152e44e623d3839a5067bcd702111f0c08c8a286. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/BRIU72200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580099b2fca4bfeeee64626f5941cd7577b93523360be76e04e9a5b1ed5b47a5. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/BRIU72200004.
Set Pele Morena (feat. MC Guizinho da 20)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b280dcd90e35eda7a9eec18435a9cdb5e8c25156f052419d178ec03431e016. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:00:55Z), 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/BCI5M2300057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddfecabf05747af9bb12920e247a7477fe22111322ff10a6ea257632dd31905. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:59:38Z), 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/BCI5M2300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f7b3c1769b8abb2954be2e6a8763aa3c1d5d93f34daa7487308903d8e5bf13. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:00:53Z), 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/BCI5M2300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bede76b30f8252d50ffe9e323b790cea9739c04760db9d79ab9428768a6ea0. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:07:06Z), 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/BCI5M2300063.
Set Fé No Pai (feat. MC Guizinho da 20, Mc Nerd & MC Bieel R9)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d5c53f8ebb55a0206ac70e265b775887983122a401e68fc726dcef09004307. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:08:46Z), 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/BCI5M2300095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741de66c3b5e7600cd6f279bb3f4a56da6f8b0d77246c39aa3eb20093c1ba4dd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BRIU72400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6de8f3370bfd1d5ce2649cdb127fa05b1cead74380d5325904d83726896d0e9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTPX2409425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2dcc27d460496dbdac31674bab77d3bc8a0d58590ec8935e1b5910069673b4. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZW9K2426104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20eb0577660fae4e8d9622185e1ed0ffb24b08e04f9a8b10d55737ee1b73a6dd. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BRIU72400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf611a447789a49df89cf56b877871132d8637f107391cc94c8055852ed689c8d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BRIU72500001.