{"copyright_id":"0xc9509bfa7ad832fb6e7385fdd4b2f3ae9ca6c3dae9c6e62a1b02405ce2da8b96","name":"Vitor Vaqueiro","registered_at":"2026-06-11T18:00:43Z","symbol":"NIM0086125","token_address":"0x8cd1a5cadf6d6c71ad5f49cd7deedbd157aacdc9","type":"artist","uuid":"424bf171-0862-4404-a1b6-3c4bdaecf196"}
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 0xc9509bfa7ad832fb6e7385fdd4b2f3ae9ca6c3dae9c6e62a1b02405ce2da8b96. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/424bf171-0862-4404-a1b6-3c4bdaecf196.json and https://artists.proofprofile.net/proofs/artist/424bf171-0862-4404-a1b6-3c4bdaecf196.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 0x058bea39c066e211e6eccd93a5b8d2be70b70a15706a307bc6a43e353d191132. 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/QZHZ32120543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bfafb6cdb11a7606815ab519671d0bd3fd126b475a26efb89930b69d90aeaa. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZMZ92209547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b475cde6e3c8b46b750113a8fa0c1ebc2cd5ebda69f2ebaf1238fb9af27dfc5. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:28:20Z), 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/QZW9L2201154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c81ad58644810bb2196bb32549373d237d7257ddc4ec16a7dd2bb16a60df50. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZW9L2201156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ca68150d8deda2b410c2272357b1e9b3f0f95f63b9e55be194f901f1a38b5b. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZW9L2201160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79843cbe6880aaf12c5e63dc94775e869173b17fe720c8d663310c4bc8f246f7. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/BC5192300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3135cd2256282492f0e6e29942f46a1b6d8fbb5f249ef1a853204fe39a82261. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BC5192300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf4fc9ea3389a106d85894e8e270be663e9cda4e6a95b96e2349cdaac0369cc. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/BK4DA2322990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f49636b2435cdcb00150e3bddc52a86271c70e6f5931866617bbe8bb4a8b0a3. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/BK4DA2322986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5579e57c4aeabb400e3e26bd0333190bcc80d54b965ef9ea6ad13b40885ecfb. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/BC5192400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e32460043017e38cad3f6a725834df333b00a6228e5717b6aeeb092292e378. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZW9M2415292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ebfaa162b861ca45a336a7a49a4b4c56f4274f7a4e410134d61603c5c10585. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZW9M2415297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4153853109a6b0a39687202bc7d53f01bd47690414f0dec415f906906588e1. 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/QZGLS2556746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd08ed3dbaf9fa376c43780c96e33a837a8d7d5a70f861ebebfc4c70e068c8d. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:09:53Z), 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/QZGLS2556747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d69734b0942de85955815052fb6cd31fdee4ea2004b40572862331764a103c3. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZGLS2556752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e6f58a6c641e8b420cf6c21643d9cd7c6ef6ae8195a1071b641e868fd4d69e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZGLM2595327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afa8dc2d499a5891d45b5c63128a0f5e2923dc5dcf2a2dd99af3d1667968c03. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNJZ2546071.