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 0xe3cfcc9a29cdb0dd75748f6e064bb70c15117b65553456745d6158a65036fa31. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d6d2c02-b274-4722-9a0a-4710d98f350e.json and https://artists.proofprofile.net/proofs/artist/2d6d2c02-b274-4722-9a0a-4710d98f350e.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b84f7dc1410beb8b8dadcb3d8bb6ba1f88df4ab602e8d6e5368dc88a7b6e1d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BX4IU2335046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb2ac2a92a145e89d23c13fd0a283b00631d6e764a31330b0b11c2c93aff222. 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/BX4IU2355106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa15b9e44dcd76ae3bb7f56c114d766d4404469e234877bb9303deb7016d3c8. 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/BX4IU2336072.
MTG PARAISO TROPICAL x VAI FUDER NO CALOR
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5d6187391d615647b38e52907321aaa28a727ab3e57f33c8f796d685b50c57. 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/QZES52505096.
MTG PUTA È SO UM DETALHE TEM DE NOITE E TEM DE DIA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000cc8991c07ea523d8c97663bb31166722640a0c794f6e63bd8e5ff58e3fc43. 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/QZZ7X2425138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccd6c12770266ae97303c709648a441324bade72fff9a101bf6c5f5ca2edb11. 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/QZZ7S2430355.
Acende a Ponta Do Balão x Vou Te Botando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd9b420e045843abc294864d97ccdbfca2a40bea70dab24a9a1ddd6685f7b2a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZZ7K2477783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bc4034e9ded5981ca77d037dc77aa7dfdb790eb8573a8038a17fde6af8ab9d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTBC2437867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a25649a907dec9b3aaeafd3a8c59627daef63f5a7f42c6db838aca3beeaa46a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZTAU2454293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f5bf9439b2e056da4a6425a0da0d3c3a34cb6f1e8815505ebe536f9ad02d6a. 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/QZNWR2435269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8742d8a0e9083251d797e17076ea4c37c96377391527ad0577bd0f43dca90f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZK6P2451727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2999d99c2697f54391ab57ca32be64f42bdcf6b4464bb97b80bd8f7844715ef. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZFZ72447125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29761cfaa9da4879d2a170f8da9c4f61eac56d4d51065084caf01d068ebc747a. 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/QZFZ32473106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc182d151bd36802d8c0e67728482f3d4b2a760e97bbfab8dfaafb7d391b355. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BX4IU2359022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77736962aa99d5a887aee7dd1fa8d97f4f840773916c24628b802be337b2f94. 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/QZTBA2330493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8f8fc85f5fcda80f491609ebb90ba9fd950145fcdb361624802907356bba9e. 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/BX4IU2351319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6e755de5c75d27b0fc731a914b0b516c67540277a1551996b6078d18169b2a. 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/BX4IU2343616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222707fb060e122909a9a2e25e95ede9decb314d317939dfe23ec300eac8c70f. 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/BX4IU2339610.
MEDLEYZADA DOS CRIA (Mc’s TETE, ERICK PVL, MENO PX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d63d8d72aee92d8c3cef7270fd760dab84576deca40a9600564b20b93ba3bcf. 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/BX4IU2315083.