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 0x3d4cc8f4f61ec6c3f3aad571c14d0c6a4b088a4ad1504f09f3e21ebdf36d73d2. 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/32dc5b91-febe-4b6b-918d-1b9edb76237b.json and https://artists.proofprofile.net/proofs/artist/32dc5b91-febe-4b6b-918d-1b9edb76237b.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 0xbe4b0f5be2b65e2f7890faaeb09a75cf203e9d6dd201ccd09c7566aa76548a3f. 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/BXTB12100075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee71bf058d4261bf2930e172e8c1e984e89890c1aab3b34e5b809a3b74ab2d8. 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/BXTB12300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa122740ae1c6ae602b272bfa3a398901088da33b188a9cbac9030bc9d834f68e. 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/BXTB12300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0416c5f8146b110ffe3f7419bbdee1b2a161e7b203e83b17f90c0e32e165f558. 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/BXTB12300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3846222bd5dfa33e952370c45f6326a8e1fbca1a2d8af5b2d20642dd042894d. 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/BXTB12300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593b55fc0df613f9cdccab37f36ead6ff0c884394cc156a74bf80884b49685ed. 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/BXTB12300047.
Ao Vivo Em Campo Grande (Ao Vivo em Campo Grande)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3fd293b5a54fd26ada7a915805acbbb6c91d2b6032523930983708e39b3e27. 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/BXTB12200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5e9652d54ce1af26a6fc968585283a2a56aa57d016df4d742828db26533f33. 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/BXTB12200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6661adc9dde9ccc76e5d99b1c55c6414a18b2fa7b3c50bceef8d07bf83773328. 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/BXTB12300411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044bfb46d6db8c568108bfa0ea709c72c7ff68dd564e2d84e850ad05e77fd1eb. 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/BXTB12300251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4cb8a3d7efe3f2328c31421b047506e94b1bbe5c9340eb3be4734979d7a2e8. 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/BXTB12300418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6661adc9dde9ccc76e5d99b1c55c6414a18b2fa7b3c50bceef8d07bf83773328. 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/BXTB12300411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044bfb46d6db8c568108bfa0ea709c72c7ff68dd564e2d84e850ad05e77fd1eb. 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/BXTB12300251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7253486c6d6c8936cd6a3eb8569fb012350e978ccaa2d04f0f685c2038f1f21. 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/BXTB12300191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482d33ee166d941f7344386ad7b952a13cf7684f768019ca1854870547793a72. 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/BXTB12300010.
Travesseiro De Pedra (Ao Vivo em Campo Grande)
Truco, Pinga e Moda (Ao Vivo em Campo Grande)
Melhor Não Mas Bora! (Ao Vivo em Campo Grande)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa96de6a92d8665ff910fd08a85f2869a9276535acde84cf1b52358aab85323. 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/BXTB12100162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423a0f37da4262bebbc6a98a5353455573f91bf52c574f41888cc63236f9beea. 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/BXTB12100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655ffd7448b0547f1223c280c6309602b9c0a6822e02d2159615f04d998d41c4. 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/BCSUY2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cba8cf2ca6dfa6caa52b94040e00ad46f53a89b12de60da7f35a5603972dee. 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/BXTB12000224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf69ffd37f6aa1473d81dacfe825131ef1b1a28892f87497bfce285688388b6. 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/BXTB12000144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe0ec5041df28052af6903a1486e150c5d80f0227439b9a62f5bd5ea5de58bd. 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/BXTB12000225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe783f92f1ed5555dd1a3239f37933cb459bc52bfa46eb117793ca8aad483c10a. 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/DGA0M2473095.