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 0xa009b28fc7c7872baf07ab1a557fabc5181ed8cac54a9a7c3b30e0645eab36a5. 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/5d2d4eae-023f-40d0-857d-7e2fc9bb75a8.json and https://artists.proofprofile.net/proofs/artist/5d2d4eae-023f-40d0-857d-7e2fc9bb75a8.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 0x772277f6fb7ef109cd3ce8e74c2dd2cf728a79325a9bcfa8a50b4794391fe5d7. 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/USA2P2016577.
Palomas Que Andan Volando / Cariñito de Mi Vida - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dd56eae654dbddce77658a3a2bb28bb54826d50585af5e2eb0c0976289b999. 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/USA2P2016578.
Cuanto Me Gusta Este Rancho / La Prieta Linda - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea39b3796e42880f64ffd85875e286d6a4be875b31282bab8886e773f070dc51. 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/USA2P2016579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15bc79444326d74cc03aa337d849a323f1cdc437486f545d7d6e9b1cbd6b372. 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/USA2P2016580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15eda5e94d4f5531f7c546b2dfe602e102b6d3fca60dbf006c8d36969231b7c. 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/USA2P2016581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8abb434f790ba27fcd64d4cdae7968f2e459a040bba2a29c18fd5e38e6a54c. 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/USA2P2016582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4da329618235ee6c6d7816853f4e6d8475b155191d724c6ab53295d02a0571. 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/USA2P2016583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52649f9f68fc751ecb91a22b203d68fb022ea5c977163ea77b167b1cc67f08b5. 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/USA2P2016584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981ba0170290780f2be70dc6aa640ab04125ef5b1a43c41318aa3b000fc315c5. 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/USA2P2016585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee483a6ce22134193be23d2bf6f1fb5727eb09bf25fbe5a74eaa7ddfee51f93. 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/USA2P2016586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fd9f4be973fc1ac6d1d36bc5a3527c1a1634e717f692f3f9fb4cb7968f2d44. 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/USA2P2016587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8081c540a4a3c1cc42cb7558d5ee4c51f8c5298cefe79044a6bbdb42f94fc7. 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/USA2P2016588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51d5167e86ee347d44a673316e50c398d3103e0f9dbfe344a8356c9eb737eaf. 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/USA2P2016589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d784af75a09e3c524f78ddae99f1968c1bf3c60dde2fffa1aa20e146f24a6d7. 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/USA2P2016590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6941d527106ff404e8da1a2f41cbac902e25aaa01427322ba011a1febfb5246. 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/USA2P2016591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d36ae9bfe21704f58876367b3261db3a357bb38617d6b1adf76eea52e905db. 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/USA2P2016592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ac3a4c2bd0c9591cfc4ba53cc2e6081f65b7bb1651cabc8c2f32b51c20714f. 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/USA2P2016593.