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 0x0b2643ea2795e6cfa3ef8a4d359706cd484b8a774ee371899b23173bb3db9000. 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/56c92e28-5a30-4f12-b4cb-bb1091fbbc04.json and https://artists.proofprofile.net/proofs/artist/56c92e28-5a30-4f12-b4cb-bb1091fbbc04.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 0x71adb0739b9a9d6d0d44be59f4eb9744a8dc7e5998a44fe63bade53b1a2112c2. 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/IDA162200508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f764a7cf010dcb044e7000a3dc7447eb21d6b8f62195ffd01d6f269b46982a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/IDA161900448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0693af8606729c41737df23e7129d91d1ad3c51dae93f5f481be77887158150f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IDA141402216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce6d227666c0e74eec4ff317bd7026f2fc1a9a08dca2662d7c0012370c0bd90. 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/IDA141402217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fb04609e2a1fcde8bcf64fc660e94fbc3cb8149432e676b8d36301c1e914d6. 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/IDA141402218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93194d2da0abcec9dbfe9ea566ca016bebbeabf4a8d1c16dfa10cc6112ccd0f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/IDA141402219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5ae5b3bfc5994de22ca572c148bd0ff2700667630e96174e980623ec7c10be. 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/IDA141402220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb961ea59297e59b16a0c36437708fb0bb5c71f61e9b1c8eb686bf8b72ff995ec. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/IDA141402221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1700260f4517405a1bee70ba539bb29a87bd158eb9ef92ebdebd9070f4db7f4b. 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/IDA141402222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64221f9542d39ba7e7f937fd9267a3a29b62caa1643bfb36d7169832a47f8c35. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IDA141402225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3783785c4652f6286b0be8a9cc07c975007e4f099a47f71ed2f4b7bb6028f1aa. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/IDA141402226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2218cdb0e44c645c0e0a6233f18590735572f975a7ae85499725664051b5ee38. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IDA141402227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71adb0739b9a9d6d0d44be59f4eb9744a8dc7e5998a44fe63bade53b1a2112c2. 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/IDA162200508.
Di Depan Mata (Serigala Langit) [Original Motion Picture Soundtrack]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178cda547b58891138157eba5d89b6bd173a8a80791110ac6ee5e6757af09ecd. 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/IDA162000461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f764a7cf010dcb044e7000a3dc7447eb21d6b8f62195ffd01d6f269b46982a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IDA161900448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90da308b1417d4b386ee900839b60dd5ee6a4e5200ebc38f7edddeb30276cb05. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IDA161800422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b9f5384c39d998b2b37c59503096023f6d3f242aa1cc30e1bedc46a1187e26. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/IDA161700388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbceafa5177f17ac7bf0bce8d4003c0e49039f06720c9dab19461ddbbeeae364. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/IDA161600368.