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 0xae9a4152c881657bd5b72dfda519decf700816bf5888e67968772ba66e4f8ea2. 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/c61ff7b2-8c62-4755-9e20-eda63fd7fe0e.json and https://artists.proofprofile.net/proofs/artist/c61ff7b2-8c62-4755-9e20-eda63fd7fe0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
90 Minutos (Futbol Mode) [Bachata Version]
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 0x2f94cb71bc06d5ef01d68837d17f686b3d7a7d435f5cba5b513cd4cfd2ab4c19. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/ITDO81900608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7b69fc8f9d19971c6ed635e593034bb38a9aa47914cadfca63af55769c3b19. 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/ITDO81900651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd233398c6f5dd1839b4f252c991d00cdd56b25a38123afbedb021d0c506ab357. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ITDO81900652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c221bc40d5e96b10238ea0c1a5ab54ddaad93e0be14a715760aefc7de01ebcf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITDO81900625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c651e794b98755a30f322889210e377c94fb61619ca0ac0adfbdabb17627ca. 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/TCAFQ2150083.
Rondò Veneziano - Odissea Veneziana (Salsa Version)
Rondò Veneziano - Odissea Veneziana - Salsa Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79a4aa925e5004bc2fc45a3d474af0bc4f5a6ac19dce78ebdce55ebd2e8b03f. 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/QZTAS2309411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbf4f57941526e698f548225e6a4b4fed3b9bffc8f59bb25114ba23043477c3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:16:12Z), 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/QZES82490378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e216c64fd0d1a912b1e50fff9bde1eadedaf947995870dc19d8cade07ff866f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZFYX2279571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b9748480116b7680b26966542a5c9d879b5d2c9a9551220838edb95d95a6f4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITDO81800470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622c68423e7da5ae5e425903f040dcf26479af44edf2f9aa5ddfb41833903d8f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITDO81800474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7172eada5aa2d62e6548a5a24aa2c62f5e05f01f9e65598eed337622a6c09f9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITFZY1600117.
Para Elisa (Bagatelle No. 25 in A Minor, WoO 59)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5e5f325e7d2c0e7309495c2c44f3f525e016adbc118c7e58d8a147b028c1fb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITFZY1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46ad7aac27434c68d12bfde8f4bc143d5f015bd98b3f61400a8ea1509643ed6. 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/ITFZY1400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6db7e273cf209a7facf141ba456b5ed85f02f13dadc6053a4587aa55308b08a. 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/ITFZY1500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304e76d3191812949eeb33923a590e7f8a2be643b79112785be5f2b32fda7700. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITFZY1500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be92e5dfa2743c5873e81068be03cd75a5088dcbd893ae9384e27c3a35b7e87. 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/QZGWW2133824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28db49cf4b3ba490d03dec94d9100bad91226bed03b5263dfe7f0a51efc03336. 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/QZFYZ2213388.