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 0x71f32e1e0453f4a31581c4e49d5a718f03f77c078e97e0560af971f664dd9e56. 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/a4ff5d3c-6047-4171-8aa5-4f11797df87a.json and https://artists.proofprofile.net/proofs/artist/a4ff5d3c-6047-4171-8aa5-4f11797df87a.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 0x292fe6ddf016bfe5f8ff8c12ada9928e283ec9b4ef81422f866a23629421d136. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM2PV1736653.
bagaimana jika aku tiada (dunia akan terus berputar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67af73f7325be2eb3be6e6736eae9e3a40a8827be4313767737d8c6d638847b0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MYEP32210001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7aa73d4c40a9ada75139901f40c46ea913e53ce6d6ce8b6c8737bc1d41efd5. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/MYEP32210002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb61e7e2f64b4e00a7046b2bfd1339b3876419ce9f5fa66eb3fc6cfceb085c8. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/MYEP32210006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e564986293e6e9a28c9e7f3e0659ec39815ab6ec21eba34c99f4d4beb50a64b. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/MYEP32210008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80cd414475526af95b4de2c6f27592ae028a6b50088e9db64d84d2211af8581. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/MYEP32210010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec14f2ae5e5789d0951e473a76db3c973da61179555d6d709d00c5245d751e9b. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/MYEP32210012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f891ac739f178c4baf89c4ee838c77904bc058cf8f1d43d0343113fe504e63. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/MYEP32210013.
Bagaimana Jika Aku Tiada (feat. Heidi Moru)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f2c112151565660540ef9385a73443b65b6930d2fce15d4f25995e63ca2adf. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/MYTP12300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc572001b9ded5bb09b4aafa5dc9563fff87e0dffb2ccfe3d817a4136f6e5977. Chain 2 (Bitcoin): anchored in block 957558 (2026-07-11T11:36:38Z), 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/MYEP32413001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148d1f05453e80cac829a16ad56fab2f06789540d4ae7714d5f9fe973011cf45. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZNWU2059371.