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 0xbe6845cf8cc5c557e08208017328d283e47c9f12369394d3377c491e42b6ac25. 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/2d1b8b9b-6cb4-4094-af05-18fd1e0f6d56.json and https://artists.proofprofile.net/proofs/artist/2d1b8b9b-6cb4-4094-af05-18fd1e0f6d56.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 0x83ec6be8196365e8912ceae329008b53bc569c3101323712218c0a72d02a9007. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/BETOQ0700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efd1901c3ee947662c44e0489d77796c16ea3a05f020c16193af81e2f8264d8. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/BRTOQ0700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d51686bfc6e160349434c3246165ff852f85955d6ddd9c192beeb59e2993a2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/BRTOQ0700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ab3b68c0cd81e569f1bf842c06d1f6ae8ee16014c99003a555d146ba08d727. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/BRTOQ0700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6a280451c24400a47c1ed5915ba56558c4582d5608e1adf57bf6ae50ea105e. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/BRTOQ0800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee264975e1ac1ec74c1399e6cc1231de04ed4926cad3c5fb6ef2bf629a0651b6. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/BRTOQ0800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10c2f6f491fabf45970bfd7eeaa58535c7893ebfe472a2c07f644fcab8ef60c. 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/BRTOQ0800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72f9a97047dd46fb10ed487eb4493c16d3225437d61ef20a07e33b642d63a6a. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/BRTOQ0800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f6f34c25920a23a285e06289d8ea897230cae31799b9fc03e43a3034437ccf. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/BRWYC0900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cb31a49deb0620be58c2ce35c40473469c38cb3a99d31d955a90e1d6c49254. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BRWYC0900008.
Ao Deus das Causas Impossíveis (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab01128d6c93d0f885ddae0dab2b6f1bb071f06456ca6db7a2a90780d7ccc83. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/BRWYC1100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29be03eb353aaeca671caf5db6176f36561c07339682df740eea14bf0411ea54. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/BRWYC1100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2413a136bd9e0444d8e53b93a23652c9c5703ccbfa04d016a4e645933a42c5. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/BRWYC1100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ea18abc6b1aa63520d8ecf7cbd7fc0c2e5d4bfe503cabc939da5e67937ba96. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/BRWYC1100042.
Ao Deus das Causas Impossíveis - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e873c5f66625f8dd9fb906bcaff67c6c4427dc81b2897d8135cf01227e19c11. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/BRWYC1100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e616d42bd3df66d1ce68a0c1cfb2f355abd316124f9dbc9976d63c7b40d4771. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/BRWYC1100047.
Basta uma Palavra Para Mudar - Trilha Sonora do Filme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04de6b1c2302197a2da1f3d10fc02f827935c2eaf244ec0985f7b044225891a8. 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/BRMKP0700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393e8016e904319b4360c4c1eb927c3de06a5c52f75c39e05d1b2d82a20333da. 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/BRMKP0601222.