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 0xa5116e5f644679fc1965f3861117b8bdbf189fb594b61c5d474e8da810592c8f. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebda1721-b674-4689-818e-ef59c7dd0722.json and https://artists.proofprofile.net/proofs/artist/ebda1721-b674-4689-818e-ef59c7dd0722.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 0xa119b26a3dc43d9953fc716a59f5ef7ea44853290501c8db8ed6213f4698429d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZZ7W2589468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1b81b3d0b10ec36c4af109dcbaa7487dd23d56c69b86cd7f1f3901ca2bbb23. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/QT3EY2503030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40be3d1e6b6f8ec77427f6eeafb61dffb807f9d7072ea65823100fdd6f9691c. 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/QT3EZ2571937.
Luffy (O Rei dos piratas e o Deus do Sol) [devideo Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e8f2754c29ecd2ed8ba1b6abfdbe96384f6220f2d555c1a78b80494d52e58c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QT3FA2572051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39947bdf55dd14d4280e3a3a8175f2e5fa3127fd21cea6815d81048c525c66e2. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/QT3FE2563294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2be8f63f9e90df376c051eab1607cec1c4b07bf4be8aed2ce143f33dfcb94d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QT3FF2572025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfe66bec2881eb63aa39603df81a944e6ee26cf499f9fbaf5414d0b4a26f234. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QT3FH2570072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98227c32476b461be7faa494c702a470b03c43186059acf72c94ed7f1ec61c7d. 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/QT6E62554690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4859482bd55f76d1ac9a247fa75ddaa06e08318322e11d472567727f724622d0. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QT6E82543830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c37e9e867605b802acc97ab63cbd9f432ab491f9bab1dfcb4df9aef11cd675b. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QT6EB2543925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39fa0e1486cecc3c2599fbcb609ad5ea2916bb2d1be68fba662903e213d0c6e. 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/QT6EB2539977.
OS HEROIS CARDINAIS - THE RISING OF THE SHIELD HERO