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 0xb289c159ee8f4402cc09260c68cc43c8b8fcd31ca08b578d5a14cf53a40ccab5. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8d8b58e-df6c-4814-b470-164d1ae83a7c.json and https://artists.proofprofile.net/proofs/artist/c8d8b58e-df6c-4814-b470-164d1ae83a7c.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 0xd60160691b8b00470ae376ee5513218dffd73637b9e60e37a265ca700a751efd. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZNCB2149959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf91fec0d4904aa1ac5463de095ee1231d80e52405bb227401d60b9931ef287e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:43:41Z), 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/QGNCB2306205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc9b80a27916b3de65989f629e5434c9150ac897c50ccbe7e376777beb61084. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:50:54Z), 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/KSB012302313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbff5b2476b1e599a07778142c407e42ba36efb92c8d121da86303f460b29bd. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/KSB012302314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201ea7961c29fd830a1424290f832471b6e5ec25133f47726d976d9623383724. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/KRB922417631.
볼보이택틱스(Original Television Soundtrack) Pt.3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4b056d6c420c0561b9d88422f832f4f566dd2380b0a563934a1066ecd05832. 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/KSA012394470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccbfbb82c498ad33bc3506cd414d275f6b2d5eed1e9b9ca4c565fd5e29d8de3. 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/KRF702300121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fcafe16cc8e011c555c190b25c3af434cf75d0ad1507d6ecad1e67b48e8082. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/KRF702300074.