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 0xbd976447531c4d23456b38b8341f13e038482b699767e089b496024ccfbc8970. 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/0916eb47-799a-4be7-b57a-66f2bf82bfac.json and https://artists.proofprofile.net/proofs/artist/0916eb47-799a-4be7-b57a-66f2bf82bfac.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 0x8db21681968b487e29a757fa1b1e806dda078f18fcf34b48dbc723be3a7ad776. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZNJW2013787.
La Agarro Bajando/Deseándote/Hermosa Plena
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2f0f4401d6b83b6e26148c9341bf3edfde3114402b1eef6dec2e5821c39948. 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/QZHZ32156143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56893d8286ee71da676121fc82a725389da800572ef4d8820e34eb51e2f0d48. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/ZZOPM2223504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e775b7cee415ec0e0953288746e753545fea7bf74be111f5459b0c7d2f02b8. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:19:48Z), 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/ZZOPM2230896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45ef7e7b3ea70b4e7312268f9deb754d749094fb06738bc9ec3e6abe9672bc5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ZZOPM2241140.
Para Olvidar Las Penas (feat. Marcos Da Costa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c3f2019efb4953b626d489791838d9874c318947cec8e912ec7ddd420e0821. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BK4DA2320315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8332af26ce24bc5a1a4ce44e3659396f811558bab16c7b8cb3704c94e2bd49. 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/BK4DA2325419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb62cc3998225c6096e0a40769d7a4f85e23971e6cf901fac4947990147c326. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BK4DA2402535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7704937f7015c490e200ef3c7e87bed83da9cd49ee3260d1845a1b8925706912. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/BK4DA2431601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b691604ee232aafb894df628f0629f27352792ef158728d7ed2955d320f9b6d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UYM122501042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d8d166e3b30ecdd4539fdd07cab85da21ed97b45cc86027e6455f24275da9d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BK4DA2520369.