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 0x7b49d08445060cda49d67ce740925e9e742e71897587606948e14e075d775bad. 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/2a8938b3-fd5c-4bd4-ba1d-d74b5985a04f.json and https://artists.proofprofile.net/proofs/artist/2a8938b3-fd5c-4bd4-ba1d-d74b5985a04f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
CLÁSSICOS POPULARES - Homenagem a Florianópolis
Dazaranha 25 Anos (Ao Vivo) [feat. Camerata Florianópolis]
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 0x8203a2ac523f3b59dcc24207f46ae0e1743e3fc7841494d23eda189984d07eef. 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/BR2FZ1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21882650ac4a666a4f23af1781ed0eb2548ae2b723d1dc785a92f032d2702b91. 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/BR2FZ1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d96c286bf83386c46f270d04be36aac339f3800fb61af29c12585d1a8bbc4f4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BR2FZ1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847bb8a5ecb5b0822fc1b26662040db8894aab72589aa3b6041e26b1c317fb42. 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/BR2FZ1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a75d779d74c116f3eaf36e1a4f4e7a606809a00442e5212c6bb7a9c6b53aae6. 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/BR2FZ1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d52c1281b45f4475941440e54b1f50506e81df53637c23b88ff4c4a0e29786. 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/BR2FZ1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ac13d720f7fa231ce055bdf8763eec6e8d1386e9591e360f4f4579a33be6ce. 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/BR2FZ1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c28e9ed512091109ae6d909e7abb268ba91f4957a851b7c2a8e9107eb22a979. 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/BR2FZ1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525f0274f6d226ad5733c90b534cc7f54482232259086a315966f7a2b78a3db5. 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/BR2FZ1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea45f335bb736f2cd932fdf06f5a6f15d9fd1fb1f59f18cd83a9230add642419. 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/BR2FZ1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0e177a1c0b4a7db7738d39574cdabd7e6af7d58842a93c3bcd6b19bde5c90b. 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/BR2FZ1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af7efec87d4dda2eacc170e1abb1516d95754ac492a723752bd4ed322e19a2b. 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/BR2FZ1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb501b0dac3e78bb0d4dfbff8d7a93be299ed0fe81d4b95d1a961682fc89fb595. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BR2FZ1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8f1999264c53624fe2998b3706c45288fa7b7c79f4440d5fb3b46e5a02a5af. 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/BR2FZ1800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9136b43df651798da87d311bf1017704c6530ebf5a08d05c53a895c2eda951ac. 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/BR2FZ1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209f1bfd79e79e7fc918b292e1b4ebb6dd33c35eece9cedc3f4fc12fada94a03. 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/BR2FZ1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7e3eba9de7ba49f1889a87cf5a93008aebd969ea70373c14f6e9ef2da41d11. 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/BR2FZ1800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb59f26c2a75d6af42e1d33aa11201cb5ba8845ab1dbf3eb1f5e2b17563bd722. 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/BR2FZ1800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6ac9151b3e7856f79927d45caaaa45d840ef4efd32a57ce497a2e2eb1ad360. 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/BR2FZ1800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09c2c107fcf43e234d1c4d81750f0b037eabd44225ab50c4ccf1c2de055e132. 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/BR2FZ1800021.