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 0xc3250d587bebdacaddd71d6e1acf2fea86fec24b31685f49f177c1b9a3e2f11c. 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/8143039a-d166-408f-9480-e6d715ce1df2.json and https://artists.proofprofile.net/proofs/artist/8143039a-d166-408f-9480-e6d715ce1df2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tem Que Ter Fé (O Canto do Coração) [Ao Vivo]
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 0x190db459395a902ad53661ae51c3532b1ad75292f711409793626ec1c22a4db3. 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/BXSZA2000007.
Pai Cacique / Aldeia de Índios - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13fd69ce424ea5d5bac963a5f16464d09f305cfc654472365ff97485dc23672. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/BXSZA1900004.
Doce Mel de Amor (Ao Vivo no Tom Brasil - SP)
Luar na Pedreira (Ao Vivo no Tom Brasil - SP)
Vencedor de Demandas (Ao Vivo no Tom Brasil - SP)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eaaa71434cd9c8d3c8783a5137b27ec969b40c75f8bf17b4ffb922ee14a98e2. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BX08N2100144.
Curador da Alma, Tom Brasil Sp (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8480dd23bd1ebf0b3de8bd7d7cc82105b831529ff2e089cc2670c635bd25ef5b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BXSZA2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a35ebd6a79cc46d1b913578fb2c3887953dbde786045410888c5e3116bde4d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/BXSZA2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad023e5764eb1260e0f961762a80dd44ede57fcd6c23738e1c3a7bbc6e8721c7. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/BXSZA2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e7215ac8d43695cfda3ebdff828d08ba7b5792897fb75c33c90657acd459e6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BXSZA2100004.
Curador da Alma no Rio de Janeiro (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e20b492b9f948cbae5af69b1800c4ff9c963ecd4a39b532c0b9f70ae37275c2. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/BXSZA2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a0828a6022404a3459b8d7eb86dc552bb7fbe9ee2d427db9727c57b8882d01. 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/BXSZA2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fd18694f0145ad673b04aeb79c6a5e412cf7a931a4fa7e5107025288f09d9c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZHZ42263840.
Curador da Alma, Exu a Luz do Poder (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357b113bcc1bab26d4224227cab307258edaddf8bc51bce300d9320fc6aa3bc7. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/BXSZA2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4fabd13eb800abfc4223640e97a4764b9f180bd0eea69f5c98783ff81fb5ca. 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/BXSZA2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe186e9ccc1e3c1a326a991b64a37c26f107074285eec41ac04990198dc212fc2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BXSZA2500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92e6ef0124fae98f4cb3b661a4b5e022d77f4b77167cce52e0a87dadc87598f. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/BXSZA2500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a64d85c924e1b5f013a9a5c5281edf2c5866cb69eddd467fc46999efeab9711. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/BXSZA2500018.
Exú a Luz do Meu Caminho / Um Brilho de Magia
14º Festival de Curimba – um Grito de Liberdade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e48c3c5e9efd8d69b579eb59c15fd7ace7d2d0b1dc116afb1e438b545a67f0. 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/BKORX2400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b66ff09be6b7b92544f668d4f42bcbac8d23c8cf11c9795a10228c65be7c05. 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/BKORX2400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4523d442a10ecaba90c100856f5700269b6e9675f9b40c50e89a94c0be7f8f. 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/BKORX2400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e93d3ed505399ac788fa032fb2a6af054bd48b98f63f28bc71545685d1d755f. 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/BKORX2400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1d637f34797888b4ae4081dbef378c63c9726d0bedd80e8649cee033db88bc. 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/BKORX2400087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa6b3a8030b19ec57f44ecf1faf42b0c0d0eed7410d668244515e915798975c. 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/BKORX2400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb10f98ba3ade760aee95890102e2cbbf30b34fb57e33c0034599f0e145bc849. 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/BKORX2400089.