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 0x5627dc1d2215d49cc21ee7b534e5374c44598c1b851169a0d0a3d21f854bc44f. 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/24a7cb69-f703-46a3-bd25-fffed56161a7.json and https://artists.proofprofile.net/proofs/artist/24a7cb69-f703-46a3-bd25-fffed56161a7.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 0x0d4dcebd8511887127b556281dfe4dbbf37a3fe679137c477f80184f088c08a6. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCADX1868276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e67e065002eec52cc2afad550fe7e5d0e0ffca7c2ced07d7a2ad5a164b1d60a. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TCADX1868277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d54f59a3b370aeefd17e60c5c868bfd616b4fae2d93c6b4f18293d5728632d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:24:58Z), 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/TCADX1868280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20ca09f5455ff78464d05ab9bab281593674445c06638c9c49595356c47faad. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/TCADX1868281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed78d8191e6d8fad71528286c5b08f1112c3fc3492077e4b069bbe12cfb1b9aa. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/TCADX1868282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9212f2ab3e47bc84a6c11ba1dca8926a5f4f90df42865fd1080721e565c7d3. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCADX1868284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dfcb4759ed6368d02ee4c438cfa801e3537dc821f153ead66eafea889cf538. 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/TCADX1868285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a6f2e532fcdddc2e03a62cf10cb94a3f40b0b26d23e0d8f17af469b0b687f8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCADX1868287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94fc64f0f93a727f5ced9166f03d90c7d5f788f7c443e3664d8a9eb76610b14. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCADX1868288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb54fcb47647f8780c75087bf38d9f271dff320a6ed6ce535d10aa4c6eb4e508. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ESA011748806.
Chegada do Papai Noel: Canções de Natal para Crianças, Músicas Natalinas Infantil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050c432a70f0c8e305d6c88e44a2062c8673fb95f67564bcfb0780234fb924a3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNW72222382.
Canções Natalinas: Noite Mágica em Dezembro
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Harmonias Natalinas: um Tributo às Tradições do Feriado
Natal Luminoso: Melodias Festivas da Temporada Sagrada
Celebração Natalina: Harmonias Festivas do Feriado