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 0x3c59836e9d4f39e0e11fbe9d7e8dd91203df2f12be18082e1ebf26740873fc50. 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/0d7fdeb7-4fda-4e4b-b24d-3133bdab60ac.json and https://artists.proofprofile.net/proofs/artist/0d7fdeb7-4fda-4e4b-b24d-3133bdab60ac.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 0x12fa9b5311c9bc3b98fcbeba44e4e7c78a9e98cf5e37b9e13d9dbe81fd2b9297. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QM4TW2037517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc627585c7a0b6019e4ffb0f9019d57195a661ddccaab930edf6f6b628f63402. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR10S2080005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17e3121c6ec7fd047a5964f3e76bab839be62826b48729ae4339591a95e5f9e. 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/FR2X42008007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98a7691956f874784d60d8f78a5342f4a3946613cb5e2ac7ffb1c9de8149fe2. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:18:58Z), 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/QM6P42044715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90cf72686ff55da4461456a0991742cff2549c0e9f767454e83c2784a428088. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:48:34Z), 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/QM6P42044734.
Ditinggal Pas Sayang Sayange (Koplo Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb4cd15a612fe8b60ed4638c74ab6d295523be6ddd3a82f9d4a996eb710d732. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/IDA601901145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862a6c5b27f0f22d72f6b627aa0b28ad1cca24dabbb2597931fd0966aa6ec8c9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/IDA601901148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88a2fa4316790f22cdf62e0b0c2c85c1a801953825589b284f8a9e0a96bdbca. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR26V2054695.
Bersamamu (Stress Aja Kunikmati Apalagi Bahagia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7325f4a24fb29c250034c2675b0991a45390c4877e69a578d3c697e37dc65ef6. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FRX282410926.