thumb|200px|Brazilian singer Ivete Sangalo singing on top of a trio elétrico thumb|200px|Trio elétrico thumb|200px|Trio elétrico of Carnaval Bahia, in Salvador, Brazil, prior to decoration Trio elétri
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 0xe77daf767b86f4cdd92991da184bbf1e2c3fd04570d7ea6ce44cfe9c0424b651. 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/8a85d497-faed-4a9f-b467-f3e9ec9924b7.json and https://artists.proofprofile.net/proofs/artist/8a85d497-faed-4a9f-b467-f3e9ec9924b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Atrás do trio elétrico / Sem grilos / Um frevo novo / Chuva, suor e cerveja / A filha da chiquita bacana
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 0x01a0915a967a2f7c263a6e03364f196e9aa2d6a513c0d7200297d9f4d9e776ff. 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/BRWMB9901420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf453697156363c1bf550bad36d9d52f47da40d6819eb9255801b624089263aee. 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/BRWMB0200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13cfef4f64863ebddbb4d1c3a3ff6e890eec87642c57f46111fc8f92c36a63e5. 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/BRWMB9901422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccb1f2467f45e399c917fef7d5e74624a6d50c10df2a865c9fb508e73fd6510. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/BRWMB9901423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4890b2d5d03cba233976f84ab41ae9ca61a6b3b9e704b8ebe816efde8e4bc24b. 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/BRWMB0200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1317ac8ab812966815ef7c9892d459d36f6f05d3a6c54f023d7569e000aace6. 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/BRWMB9901425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af51853ef7d303363434ff71f6c73f54f942cf4ad219e1f4d8b6292c6e75056. 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/BRWMB0200008.
Delicado / Arrasta pé / Camundongo / Brasileirinho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f808b7fa2c2c550519243112508b4d47048a505e0f6b73a6be9b88d26e2f8e2. 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/BRWMB9901427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87c5412e9c576364e1d2da104c2686f2be53e9447f28e3403bf0382a097f388. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRWMB9901428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f3f1b28d37e87f78d78307ff4e89d568c4285d192c38eee92091e2facbc775. 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/BRWMB9901429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6427f38ee93e3e6fe798f3beb95ef1bc33b91042f2e09e66f19fad8d0e76e4fc. 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/BRWMB9901430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66fc46fabf02c716f61831f59e8722667079edf9507ae09f87832eaf03bca32. 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/BRWMB9901431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7867d9fe0d64563c6abe882f4699a96f2681221a733886cb77682072b2ce71. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRWMB0100504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e907f059579817624467cc03279008ddaa2ad3e216ebd27865e5b48bbfde0d. 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/BRWMB0100505.
I Want to Hold Your Hand / Ob-La-Di, Ob-La-Da / She Loves You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6d230808d687815fe95b143d2c88db5bf4ee1de0c92431c9fdbf99dca3a70b. 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/BRWMB9901408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf389728ffc028421ca65d4a43b1dbeaf5eb959a385bbba7fc5749c03ea141bff. 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/BRWMB9901409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36220e3bf4f09402d66a730483766fac2bd6c86040b1547d3673f49a67dc174. 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/BRWMB9901410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c06cbb21ec7e9e2a5ade5a0124a0e52f7593e819cddaedbfb3add3e70c7366c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BRWMB9901411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba048c5482cc12f20a5682879bb2fdb47a23a21d60ff569fef51df966b8bae2. 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/BRWMB9901412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f6f5aba4632f0b94b526bcc6d57ac129a500977f79a65ad4da746f15c3c1e3. 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/BRWMB9901414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ca7e5d043dd4e910e344508ce5e418ef337f189068c0847733225eac988b8e. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/BRWMB9901415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69652b09b6a638ee4ec120250e3a44fc7d0ed7a07fb8bb1a33bcbda831f1216. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/BRWMB9901416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18275e4c674711850a11f7fe5a7b893a9e2f6626227bd7dab37dfd164b16c897. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BRWMB9901417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4169827a971deaaff9c2cc11d2b62fd89007a6a9f44556bb32215d954d4f30. 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/BRWMB9901418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce66ea603b102542aa39614d49ec5c9b154554bd1d0f9bd0c7a21dc83a352ab7. 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/BRWMB9901419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca3c9b9c5d8ba81596b2e0e69ef0dc5f2e8bf17527d853b4a6155769e1ebdef. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/BRWMB0100506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79404329b86e8495b9dc578fd857e0685c89824676106d140016de9abc3cea70. 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/BRWMB0100507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec943b76a1c98fa9629a0d4df52383252bc8fe90bc70ce7eb5f542e5beb7766c. 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/BRWMB9804127.