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 0x39956856f44ec1567129086629bc5780ac1fe7baf40b3f3561ceedfa758d07aa. 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/ea367ae9-9af4-4b4d-81c9-f7a075ad7f4e.json and https://artists.proofprofile.net/proofs/artist/ea367ae9-9af4-4b4d-81c9-f7a075ad7f4e.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 0x86340e0a2b9641a79b88b0a8fce91e2d9b71e2973ea183e0c000248ed60077ee. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/BCOAO2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc9f0d723f59cf41e34cfaada06836753c8f24ab9b258a8148ea490108cb66d. 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/BCOAO2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770b71bcc48b01b4b9c4c9e8703c04a866b32b882c6b890adbd48c03bf5cd02d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BCOAO2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c04f12fbca3b2cd479a331a7bd0b7f72b52f77e7cf49a055f74431ad30eaf4f. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/BCOAO2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b403298be8ad41e791709fa2a4518d7e1f5dcd4d1c1c0d96bfefb134def9d2. 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/BCOAO2200002.
SDL - A Batalha Musical (Trilha Sonora Oficial)
Quando Você Está Aqui (de "SDL - A Batalha Musical")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f7b4fe96811b522520318944d5321c809e28dd61548150ede0001a1dfbf5f4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:08:04Z), 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/GBRKQ2497360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05418ca8dfc5339f709d7e0cd894e3479fa208f8593f52ddbf64c472d4b6b52. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:09:45Z), 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/BCOAO2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f59febc2918bf923d45de0955de0c6cdcbeb09ab4f7f845d0b7723bbde6d16. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BCOAO2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05418ca8dfc5339f709d7e0cd894e3479fa208f8593f52ddbf64c472d4b6b52. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BCOAO2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f5cfe877ece947bea6db6c1c238045c123c7ef02961ec7e7f23a20c42ab0db. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZWDD2570141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dff206bab46808a372daf1e5daab9756554dea5007060125b97b2fa58ac1dd7. 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/USNRS2241987.