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 0x55723b448f3d292737262fcd9dceefd8a00d8cf28f10132b3be95ad52b0acdc8. 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/b57d0a52-390f-4ff7-8fdd-0858ee276618.json and https://artists.proofprofile.net/proofs/artist/b57d0a52-390f-4ff7-8fdd-0858ee276618.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 0x76474e405add5cc83a0d841280349765c28d5d56b3534287cdd7aa529a2bf9ba. 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/BXIV82286692.
TUDO QUE ACONTECE NA TRETA, MORRE NA TRETA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cba9228940b824fe95029cc0be4a33315f76962a9479352d591cf49be4a264. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/BXIV82475097.
2 DOSES BEBIDA ROSA X PIQUEZIM DOS CRIAS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ca6ff3b17cbe23d3ab8cc0becbe4495411b79cc75f0e6d8e197a3fa32ca4c6. 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/AUGBT2420844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a6f2850c4d8513010fa1a02719859e09cb2100305d1aed2d61dbc74cb79f26. 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/QZ5FN2494276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14411be54596fff1f22d15d5645ef08ad5fbfdf9992b6b846591f6cb8195953. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUMEV2372142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd25001583a49b53531804f49af37fe4c92761dcf63c15cc14bd03ad98b5bd4. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/QZDA72315513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb141f2202cb8cac2a9296624d197cc5f67c53054395595fce159a3c8688c36b3. 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/QZGLM2458055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857fcb9b0f8faa635c6fb056b72a6af114ad67a8392ae7f56626f63d2e4876ba. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/QZW9K2354325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983495d5fb72715518cec222cf9a85da567251dacc69623287a851ac126e9b64. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/BXIV82291152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20fef8f15f9cbdd9d578de9e494cd4a76863b147fd950494db19df952e8f929. 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/QZTV32417899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1440d1fd52a599327b8c7a593a8ee7128ccc4ed8a3dc32ef0d772f0673c8591. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZNJY2207758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6087ef1a0dd8178e908b269c1da7f91fc3de64d7a45445c6b942eb72eb1b69d6. 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/QZZ8B2345777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6707834bf1c353e93c75f6c34db7b4e9a7fd20d93bba473f920dc2ef62c4811c. 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/BXIV82439440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879ba636a09fc812ab8a1c8dcb874142f399fbf5c37549f092f3e404d0cbeb23. 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/BRSVB2501477.