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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5081f768f05a33c2aa4e7da1266115daa4fc767f69223a9aad5742ec38debb2e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2fa625a6-891b-4f80-8374-5fa367ce5181.json and https://artists.proofprofile.net/proofs/artist/2fa625a6-891b-4f80-8374-5fa367ce5181.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfc9f694a86b3fc597903f6671101a5347e5e32867f67fe264e02498c4651f7. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/ES5770605818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ddfeff89269ba48f372caebea4cb9e8fe63514e26645a8d41ebfb02e68f5e0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES5770602801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bd02d5b6b442e9285a9d46fb7d8103ace08d2c284010ca96db7eece0ed0c4c. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/ES5770602802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd887542ad89b8dcd87c08635400eb75cfaa8cd80c07c40c238a63d424387de57. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES5770690393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bb12a656ddb08cf8963ac38c19edfa941636e69e1d7453e8c44636f35990d7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES5770690401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5001b5f26d4d41afc7aef4f5c6076bf97e8a21acf3d17cb63920c57d2ec943. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES5770602067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198335f4e73168558264f03f13b0ea8858fc69f3a4a7bb0b0524e6a0f36bb76f. 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/ES5770602051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e65b4bf322ad390ef183626eb35cedde0356f3042c225d1b83cb30189f3ae8. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/ES5770601722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd887542ad89b8dcd87c08635400eb75cfaa8cd80c07c40c238a63d424387de57. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES5770690393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7673de9ce21d5322ac351dfde1c5d9e13ae89b7edb90f5b49eab679301b8a690. 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/ES5770600578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bb12a656ddb08cf8963ac38c19edfa941636e69e1d7453e8c44636f35990d7. 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/ES5770690401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333a7ad8b07119ad7e7763e2e83c576501b451a513f4a9224a5d4ca6048e689a. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ES5770690403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e9a3dd7d4c562bd19eaaa11d13194ea6c0cda16efe86830e3759fc6ee55474. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES5770600975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd887542ad89b8dcd87c08635400eb75cfaa8cd80c07c40c238a63d424387de57. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES5770690393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6706a84786769ca225db75b7b8878fc26cb88959ff288c804be9a5a110e3fb. 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/ES5770601008.
Mdt Radio Hits: Los Nº1 De La Emisora Del Remember Mix
Mdt Radio Hits: Los Nº1 de la Emisora del Remember Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0901fcf48e29e881f39488c3388192e6941a6fc50a56761e8d755b076fd8d83a. 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/ES5770605399.