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 0x8cf445e1230dbb071acd37e90c302e421839ca08d8fbea0a1049d27d41b51fba. 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/5b1e2627-dd00-47f1-aae8-2fa78971457c.json and https://artists.proofprofile.net/proofs/artist/5b1e2627-dd00-47f1-aae8-2fa78971457c.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 0x69ca3b16ec889e2d7682a976ac0e3f907f54b9cfae3c78f56399a5678cc68d9f. 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/BC3PG2331540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7937d49d4644aeb093a1bbb121eafd034cb15cce0cc6dd2eba67349196466532. 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/QZW9L2356762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821416c806d5289ebef42f1c80c0b6ceb678eac5b154977aeffcc1d6ea7dd79f. 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/BXKG22302035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaeeea10f3aacc360200bc1fc85166f5a56a8475d75f32d558a610666b12db60. 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/BXKG22301653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f66ee8e07c93f2c935621d054601b1aa7072efb43ae2f294c3d364007bb456. 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/BXKG22301240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb768bdbae311de11c5466d9f32a99ed0f5264d13b626431b84bf74e19a95983. 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/BXKG22300984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c8e246c8be4943a68a0ded29d7e12933c81d27512308197aa45cd9a65c2d0f. 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/BXKG22300790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde0116bfbdedb8219efcc401f4aa80da653c8eef1db53a812c0da6abf6ea28d. 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/BX3SG2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca1fde781aeccfab36fce21cf8c24066958092733b6a032888e9eb58b222814. 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/BXKG22201396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6142b4589010156da106ad588aa37252edc5d9081fd3553d909ec7fc54952da6. 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/BXKG22200938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab0ba624ab1227c2d7fc13fc447f383855c883d553109d4f6256ac20bf4805a. 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/BXKG22200933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5670f530afe3d5cbf9c9bf5f2ff68fd92ccb5a6a44445ffad3febf4d3c054d53. 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/BC3PG2200155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861040d2de06e8fb6d4e7e94830a3a805fdc1cd52ab570453cf70d6f0dc3c302. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BXKG22200824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554e23eaa58fa838f00fe40f3a481b32a9bf71a373b765fb6045318ba5ffb614. 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/BXKG22200543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475cefffc905c7a0ea6d720db1875c72138a4232c6afd7c3d1f9f4d2215a1ec9. 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/BXKG22200456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fda80cc16f4a8d2bebe9f6af9e710ee66fdde7b15457313ac53bcec46bd1d3. 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/BXQGN2100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5c881652bdd5aab7509d72c728c92164f5b7cc811660f2b5d83e28f787232c. 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/BXKG22400829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d90fc0bd6bfa480fd93b37109750d7385470ad1b25f03eb4786428bab6f0b1f. 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/BXKG22401216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6eafb6580e03f7b636fe26ae422c04bcf09910cb03c13b51edc9376aefeac6. 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/BK2242401364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69539b08993426057879c5d49b1c0712c5e57a5802f0ffcbbb4f73be8b7953a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BKDFK2400193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6a2874a186971c311bc427221b7a41b1a564d4e170f2d4aabd3afe98642556. 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/BXKG22302042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8396b0a8cdc0c98cb6432d8ad5ce9cf89793f8718e9ca212af52ed07264a024a. 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/BXKG22101516.
Set Dj Alle Mark (Maestro do Consciente)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758f2402625b98e9088338800d59bccfd28d32153cc8cc70d0214e07896d507a. 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/BXKG22100232.