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 0x0427ebb1c2d5ad83500fb8f3465b4151911005a0f7a5830520cef20f7f1a1a2f. 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/aff7d74d-0765-4bb9-8974-db6fb3c91549.json and https://artists.proofprofile.net/proofs/artist/aff7d74d-0765-4bb9-8974-db6fb3c91549.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 0x8d96404a61e13e5eace28ae1ade61f97b86e075979653763cd8a57392c6b8c5d. 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/USLZJ2103113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4296a8e7dcd9bff6e038f4dbba21a043e23e7f71c677bbe80a3d694b9348ca. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USLZJ2103530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc91441fc28188e5752b66d3b62caeb7e9ae85ab4e4d0e453519dcf18ef5763. 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/USLZJ2103538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3a49bc8e7f8fd4de8f5647b8011406283068a9895f46ddc9336bc2ffd6fcf5. 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/USLZJ2103696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cd72549c66aed60f412073ad63be1eebe9e1b8e9ea292f2685b4c9d2d59eb1. 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/BRCQE2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b4765cb26fa81e828188d0e78068a0e37a65f6c86ace09c5ea5643f381305a. 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/BRUM72001149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa915baefd685c6f80e3d88777c3e4dedcf4b86854bb6028508c0bd6d2c6a6ce3. 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/US7VG1467199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b4765cb26fa81e828188d0e78068a0e37a65f6c86ace09c5ea5643f381305a. 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/BRUM72001149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fbcc068cc6ff17d51ae8c700a595a785c39ef14359b7cff01706144acb3550. 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/BRUM72300405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a1bdb8c6ae96da8b962f0b619fda66296a0b3a4aa58023d04b743267924692. 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/BXBRU1800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1836d7fa3daf2c878053af46974283099ce1848f2b44dd302928c0bbfcd1600. 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/BXBRU1800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70af78d02d400e09528ff7f30e784f29e391d2b19bf9556d7f94d7286cbbc3ea. 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/BXBRU1800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970080e27236b3c95af918679550af0d4b7fb841728dcd63541b3ab66e9be63c. 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/BXBRU1800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05381da18d7d7c4ce32701d9dba766b0d1fe6a0c22b19e2c8697a0394c709add. 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/BXBRU1800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95463fce0c0edf6c462c00e36a5ae18da245f10a05fb9ba95b8fc1f39a6675d7. 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/BXBRU1800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04d20026c4a4fb866284aad0a0d15b440c27995fa4eb670b20fb28859d7b420. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRLPX0600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d817a3692745bc6267f433a406ffdf2c9405e023e14e1b06ae4af399ff0b217. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRLPX1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2828527f7eae03b824431e637b4ccf6af1cc1072975cfe636d4ac314b61a6eb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRLPX1000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833c09906946b6a7e2519bf8aa33e5e695c6db2b3b03ebd22a0e7dbc9a821012. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRLPX0600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac15168934755cc0db1fa511685ea7ead146285893f75254a416477eb4a3e78. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRLPX1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2724a9e960ddce05ae0542f505c72ca279f7f11464c76ffc7b844b11621157. 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/BRLPX1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd182569db3edf0912c36c6e910742ed04fe378eadb4b8c915d79181b2ab425fd. 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/BRLPX1000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e30efce3d9b0fdcdbd9ceb20b97c655ca04c75ceb5c6971f4a25ad444b9306. 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/BRLPX1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b0b8270995615e34d30db3a4de681183230caf221d28b553cc95dd444b7ee1. 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/BXD2J2400006.
Vitória pra Quem Acordou Agora e Vida Longa pra Quem Nunca Dormiu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7883babb1c15f9ae34ccfab037ee9d0bbdacbe5720e7dcd284b498dd962e2e8d. 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/BCMVV2200122.
Vitória pra Quem Acordou Agora e Vida Longa pra Quem Nunca Dormiu (Edição Especial)