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 0x4b5046e9b31a7309e770e58deb09e608344071cb007a71da8d730c3d54cc4824. 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/321e90b0-8df0-4ad3-bbe3-9aa6430a111f.json and https://artists.proofprofile.net/proofs/artist/321e90b0-8df0-4ad3-bbe3-9aa6430a111f.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 0x08a4450441be2aa6b585a9ec32342fec97dcdc69bcce2931ba3c999ad9715e43. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZ5AB1865395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56a58c7ac4656002c98403af0737444564327913e179ece91b04bce14dd95b2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/US7VG2067270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fc5a5edef62ee1fa40dfda320affeaa558bcf01f9bcf4e655f0488f915dae5. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZMZ92024646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3510222002ef5a6f095270796145348ba661348c164be099090cc5b3c9beaef1. 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/QZW9L2249909.
Nada Me Impede Mais (feat. Bruna Branco & Thais Oliveira) [Ao Vivo]
Nada Me Impede Mais (feat. Bruna Branco & Thais Oliveira) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3510222002ef5a6f095270796145348ba661348c164be099090cc5b3c9beaef1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZW9L2249909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96dc3834de37d4d0e7408b8706bbfdbd6b390cf79d3251f65691e8421501714. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BK53A2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc1bf8c160a9d70a70a4ffeb38b58ee56eaf1f13f2b218e9c9d1249cad2e266. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BK53A2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fcb270abf9d906068e8d92feffba1d13c09282893922fd0ba4c09402b8d3a3. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/BK53A2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0768b28f7eb581efab269e00d708de025822f12d4073942363c06deb21230906. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/BK53A2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd5a26d71df01a03171c28cbbcee734d34ce7c8ae55efe40df3cabbecc8ad86. 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/QZW9L2251407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e1694adfcf587ad901744201c4fc73b28f643281a0ea1602eb2b88395f4676. 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/QZHZ32250413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467da765b24bfbdff7135eded51e86b405e78fbf686f713547d13a664f731cbd. 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/QZHZ42174357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d7c68d563ff7621e2d0dec08e1dc3756fda0bac2dfd2faaccbbd1bc81d1bd8. 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/QZHZ42174353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9d82d1c8d038902de23b14c7a60c5c5ceadd12f794694a23dea2249944ba01. 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/QZHZ32250341.