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 0xbb6a3f8c0b994ab932684612af6dbabb7a3cecae2cc28e1f120a2a7855085a40. 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/674ddf83-c2a3-4fb1-ae0b-97a9b512df91.json and https://artists.proofprofile.net/proofs/artist/674ddf83-c2a3-4fb1-ae0b-97a9b512df91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Last Goodbye (The First Album - Special Edition)
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 0x2489e81068b862ce2e595ad8411cf812264c6e7cd220ecde604483af16527517. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DEH741504015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81007da0a4df3b0da7ed454c705c3d951ff6558773d8725728b8deee4fb0f918. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEH741313226.
Love in Russia (The Second Album - Special Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fc1a88fd6a9c2394147fa18681e36c6a13bfcae74da165a0f9136c6a2c880b. 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/DEH741648340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd38be031cdd36acccbe73d39451530724801a82c9a8494991d07c49d9d9d25f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEH741514583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd4f3b0ac36048657c547613e29902f275b81ef9bbb5948700536c9805f5a08. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEH741649625.
The Girl That Saved My Life - Short Vocal BPM Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fb1f771d1be43198cb86facdb7afc507ed83ca6f28ccd8243ab07fef444933. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/DEH742172660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b43d74824312e73d67ca015a9f8a01a9ae8c1b16e21944e71aba736364a2722. Chain 2 (Bitcoin): anchored in block 958677 (2026-07-19T05:47:23Z), 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/DEH742321770.
Doctor Zhivago - Extended Vocal Zhivago Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acd180c5f76b43fa1186c27ea8f820ae782f77c0fb280fffa973bcc543518da. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEH742406241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab485a484fffb535bbea2804ecf66732e202fcefd1ddc1e6504c6c33ab054fb8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/DEH742427249.
Dreaming in the Night - Instrumental Jamaica Mix
Italian Style Everlasting Italo Dance Compilation, Vol. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc79b10a31f57730fb0957633b1dec4f1c070356e6f33544504136f1b1a4922. 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/DEH741648159.
Love Is a Memory Away - BCR Long Love Mix
Italo Disco Extended Versions, Vol. 4 - Italo Holiday
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350ec9764ab808d364e0d9a7619a2f130a8f14807740deffa166aa2f677aaa8e. 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/DEH741603060.
Love Is a Memory Away - Radio Russian Instrumental Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdcb1ff2e9f77ad6eae849b4f173bf939ecddcc074618c3b68372ce51e3a620. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DEH741647938.