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 0xb4eb68626335cca32bf3e67a6c8b0e681103a64dddb11fced3dce300a19c3349. 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/7ec2af4f-fa10-4269-a7b2-2a9762fd2439.json and https://artists.proofprofile.net/proofs/artist/7ec2af4f-fa10-4269-a7b2-2a9762fd2439.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 0xcceb519f5487a395a8694424c6e30d2559cbe735d60a30de6014d35aa6b1d053. 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/QZNJV2461114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87a64fb12ac9751206be69357c7a69390b10ae10ab90a5cbcbe875c4e8a0268. 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/QZNJV2461115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc58988def6c6388aa255fd50d34b0d3344de0dac75778687c7decb9fb406548. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZNJV2461116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20d5460cee9b035c6e4e440d935e187247ee0f28b9798fe0ff2b747337b7f70. 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/QZNJV2461118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed64152c1ec09b132886b752812cb22c7495988030bf4081008ce348b891d04b. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZNJV2461117.
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 0x16196448749f5414003079372805cfe11c63c0d8d7feb907dde2a70a453e8027. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTPX2399371.
Sequência do Empurrar e Toma Vs Bandido Não Dança
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25dd6d4d55ee3acb91f4206a9dbf58e08c8f7e6693ee2975cac655d8c75e0b87. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTPX2399373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeca871a5f42d761f593c2fbdf595418ac78cc4651040a8b6efb569d6cadc090. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZTPX2399367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d67eb2dc694f758d5d1c73cd34538059adf9ed8fa3eb0864875dccc70f5ac50. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZTPX2399369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3c66e416aa4bed567430830872cbc54871c7a966795c66e2f114b6b8d7ead9. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZTPX2399372.
Montagem o Rei e o Principe do Automotivo 1.0
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00acb98d3c4a4299aed30e30c36b2c5628d74cb9c94e4512ef022124287688b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNJW2406935.
Bota pra Brincar Com a Anaconda Vs Olha a Cara Que Ela Faz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003dd2b36c8a6a93f0c0e2d273789290f0c183318b64262025460ef8d676df5c. 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/QZNJW2425685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecab8c62a34ddc29ee329f939e88824016015b2d1e3e227a74cc258c57a925f. 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/QZMZ92490366.
Sequencia dos Raul - Berimbau Atualizado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585f975e1a24da35ae8fd1aac6c04676b7f57baa2a9c03edf98506eb32ea14ef. 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/QZGLS2466673.
Montagem Antonellie - Hoje Eu Vou Te Conta um Segredo
Mega Laser X Rock X Bruxaria - Set Fim de Ano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecd4afe753286ef5fb0f99cadc3a3d12e2c75a63c5d445d3f4f2eec85be221f. 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/QZNJZ2540973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9032e61f04797d291f07b15f696a3f14ff86e7ef82a9f01d50b665eeb833d75d. 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/QZNJZ2525324.