1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xbead0b7eeeb662dec003f4a534e266f53db1f3e1c246d6941ad920f945a40dd4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f9de4c3-3fc5-4630-b8cc-7bdf0d3a724e.json and https://artists.proofprofile.net/proofs/artist/0f9de4c3-3fc5-4630-b8cc-7bdf0d3a724e.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 → block OTSBitcoinBlock must exist at that height 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 0x3d9d0fecf67727c32243639aee472bfd1ad8aaf03d235f8dd6460b24a4bc10cd. 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/SID050800286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2317d838f7dffda8594ec183bff2d57cb20c1fb9c2cfc5c94e28736de288ca16. 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/SID050800295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cef3f28dbfb6477f5ed8c7f24d8320308ac5ce4ab1457ecb65dcb1aca53dbde. 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/SID050800301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45024f537a35bacdac4f38efe5acd24aa7765bb9025e831c5fb9164dadfa138. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SID050800296.
Naj kri zalije ves svet / Še en sončen dan / Utrujen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd39ab73c399a83f96a57127ccf50f8aa631dbb2017d49bd6c30b3cf6c3b31bf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SIA631500268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb69460bf2fbea842a823db5375a9ab71ed060f54c6d3c99b9745a0550960191. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SIA632400376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72141fcd4e7ce9939765f1049a233d9dc7c5aac77876fa8f86262513b922cd3. 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/GBKQU1366268.