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 0x08e759e3b07ed029b943c5039cf1bada72e3f9e0de49cb206f7532c8d92f495f. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b5cb255-fb48-43d2-8692-1dd5d6a8d384.json and https://artists.proofprofile.net/proofs/artist/2b5cb255-fb48-43d2-8692-1dd5d6a8d384.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 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 0xe0391174710fe70f67e99358716306d2cc7dd2fd289edf29876bbcfca6928cba. 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/MYZK11700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b556d98a208229982b0770d0ae5b95ef10b9d3485bbc4340ed9cf008aa4bee. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MYMA11800169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf1b816b0eb5094e9c6b5c2a4a5524648e90c92f83e55d0f7d6736842dba43e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MYMA11800157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c8e50bc11c6037bc9c76c74c2a75180f674cf62042ad51b406c6d9dae3b549. 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/MYMA11800163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe431ff51c125eab8f90e4f187d19864abbbe39ea7e95b09f0a5ed1971b44380b. 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/MYMA11800160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23067b8e02c4ea85c0d2816fcedbb88550454ec0d7cb56eebe948d1e7f5aaf6c. 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/MYEM19800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b1d58f023c679d7098df74d41a15859f43f8a7cae174f3464e2e0746dc6c36. 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/MYMA12000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef0e5c6a983528d4d3e1af813c1388cc7047a446e8f991dbb06372037d4385e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MYMA11800184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775d3d0aecdef2daf721460f740eb7696440c80537dfa174761b3d9576bd2ece. 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/MYMA11900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd640aa4c09447596b114c0cff9df108e82f2d9b09e3d82e9dfa11efb88aced. 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/MYMA11600558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b844449778c878991a2ecd10a7c54127e706dbe19d2bbd39bd3c8deb8904a74. 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/MYNV11300616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf204a2f26d6fe63f2788d9f9b3272e5630d290468c418cf285bf9b45fa6b760. 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/MYMA11700091.
Kosong-Kosong (feat. Astro Radio All Stars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4d284839362e8604baca24949ec4a37a169e9f77014077694f5400a5a72db9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MYMA11600123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77eba69a7fc56853c75529fc474d2faa796ee755fc66c4b3e7eb434e30f92be. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MYMA12100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee03bd7c94d0ac9cd8a2b6f860b342995b8f615843d94eea6e9b05e744ed9bd. 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/MYMA12200028.
Teruskan Mencuba (Original Motion Picture Soundtrack "Suatukala")