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 0x82443fb28ae187db7291eefc41c725945c65fb5ff6ff5831b420e2978f7b5792. 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/edb2b052-81fe-4c41-8520-88d56d1030c8.json and https://artists.proofprofile.net/proofs/artist/edb2b052-81fe-4c41-8520-88d56d1030c8.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 0xccf55a07d3c17312533b1f7fc8f3a79110416d98637b6dd4c718e256aacf34d7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BRSME7700072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8adedcb6f8422737028811ebf972bad998af4a40e7608c8fce370977a6f04d3. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/BRAPI0600424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c0b05f31a2711654856f3e33115fdac4590585323456e0b1d90d8bad81db6a. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T00:05:41Z), 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/BRAPI0600426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296dd21d32f89311df26791d2c908a016183a3c9ddb6fa6f110d97d1d5d4e7c6. 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/BRAPI0600428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4fee7c9ba0040f72ea05f7fa7c59b758c2e1c8f1f190fc01c7afca683b9101. 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/BRAPI0600414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab999c75502ae12823f4f358960f34460ceef3f31738ecf332ae6644b98ba4e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BRAPI0600416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb16659ce65f9b16de8497103468ae783e8be3a80f2f3554c80ff7ab17f8366d. 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/BRAPI0600421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442b348c20fedf1d35c06e25fa589f7949d000011c0a7ca0ee7307a35a133588. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/BRAPI0600423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8da0683121ce91b8914a3ac75cdcd7111609de5ca448ad9117dd85242ca3731. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/BRAPI0600417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b5880b7a2457ff25411dd828825c10b66f219c29e9fedd5abab34663bbbeae. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/BRAPI0600418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27011d01540e21793bae1cdc6c62d6b1110108334e3b551b99db87de9f5183af. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/BRAPI0600415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c194824e6d40f809b3dfab4599940bccd5af44fc87b4e186a793acb63dd8a3. 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/BRAPI0501210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec453e085b336c3e027ada09e0cc3994bf26bae3699c77ded55c19f56536f8c1. 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/USA371001962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706b6433479536b9c9b41b09cb9593b39bbd847bd8808a5e931533ed719a01ce. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZ5AB1857712.
Juliano Cezar - Versão Estendida (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60a721418c64b1367d546ec64ada2c311be6fad2bd20eb4a8fb4a73f0233b62. 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/BRAPI0501176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b289c076f2941f141c739c0848cf56bbf96ea6c20199860cbf9408b9a5ac7d. 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/BRAPI0501194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a2fdc1431ab3f959977cf6673f4e8283d8de82d0ff776450c1c5560a0cf35b. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/BRAPI0600427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb18b4c02c2549522ef3b9d7d8ad97e3352954bf840bb0ba89154e31c4dcf49. 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/BRWMB9804689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c194824e6d40f809b3dfab4599940bccd5af44fc87b4e186a793acb63dd8a3. 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/BRAPI0501210.