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 0x9de32f4c3a426572d6e2e8726c9909d587dae02143d5cd118436e5c59744f5e1. 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/05f912ee-bd48-4012-a892-ba0aebf5fce8.json and https://artists.proofprofile.net/proofs/artist/05f912ee-bd48-4012-a892-ba0aebf5fce8.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 0xa223ef44a53c6d0a26a74fe4c643345498d0b665f881a532e1fef0b2d1ee75db. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ES5709900394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4d80e8fe876f85ec3b1ed64327f4d4b559f26288dd11ffba830f8e7120eeb7. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ES5709900396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1caadf1b63919de7a850b5c4bf6556b65bc7da9519dbf964b0b456d8ef2c414. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/ES5709900292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5e81040e4eb78a7eadb4b33b840dfa978585e2c4fa8798ef8b16cb28468a75. 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/ES5709900294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aca99708934d4d737c47e9620726f65e49cdb2424990a6bcb3e609296337b16. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZK6G2045324.
Aquí no hay playa (Version 35º aniversario)
Aquí no hay playa - Version 35º aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142135429858f7039144c8830d81b987140fa93eaf1e530901c1ea82cc0764ba. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZNWX2432626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ea002c042bfa67d37a226d9c811bece1a67babb580d3a7a6f174c2a5ccd8ae. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ES5620650177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c7ddfbd7d0c08086ce683ec60c21b30014309f27f2ee13a88a427a4b7f2112. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES5709900391.
El mejor Pop español de los 90. Memory Park
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f65229dc3bb78e958ad0c2791a2977f202c37125bfe4446e06e61685423097. 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/ES5151501470.