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 0x57853d149445b1f9cf9a2444072b799a2c7868ab9806f6b1279453608616bea8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be34f2c4-8f20-4607-abf2-284a1596817e.json and https://artists.proofprofile.net/proofs/artist/be34f2c4-8f20-4607-abf2-284a1596817e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cumbias/ Miguel Myers - Quitate La Mascara (En Vivo)
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 0x47b5a036cfe93ae3f48120bb879f20e94173316889b5be61c6d882f63ed8f388. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAFW2171565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786ff524c927d63dfeb20999341dcb4077df7f7460d0b9521d5926c42b04b095. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/TCAFW2171568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2f6f2c22678497502e7e70f70f54ba18ba57de804d09da466c7a5de9776f04. 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/TCAHE2383332.
Popurri De Los Angeles De Charly / Me Volví a Acordar De Ti - Amor Secreto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb1850691f79b9626a09e62965822b5e22830a09c19e4bb1ea39122ca31ff7e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TCAHE2383372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf686786e6128b7d8ad9844b22b5e57d205fff4d8d64eed58bf0e8a6bb5c1d9dc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCAIU2477372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7a9457536bc8acbe9c98ccb26bdf738646e2a5dfc65f21825935de8e1d0bc4. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/TCAIU2477407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d4614d88668c28dae8114fc8280662fe0e553887df72154a48bbf84ae214c3. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAJL2563282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d26bbd01df6fa8cb22507b29ee9fe83ade873eb76fad665760189177cbb556. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:49:10Z), 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/TCAJP2571140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7d8bb11bd5c11e9b5c7a650be9c2bca0baa1f04f8d9fba7e377dbda9712337. 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/TCAJT2536831.