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 0xc9f56369702e7b9df76676ac9fdff45e7002e10351ff05131fac412f987b7f19. 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/3c49ed6d-fe26-4df2-8b78-f4214379e4f7.json and https://artists.proofprofile.net/proofs/artist/3c49ed6d-fe26-4df2-8b78-f4214379e4f7.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 0xe00820701e263139a67108ebf76e11409eeb377285fcc9df02b7d1d54636f703. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZ5FN1989485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9cb4059d6911ee150f7cf995ac592c4290b7d48f69c655262dd0148e15fbce. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USLZJ2352053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14bf8d8c76e17a7cbcbc4ce26eccef39a6e17126b569b13d5f713ef4761c5d8. 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/USLZJ2352055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cee0ff067d62d616032fa68e64274fc677ce3b9900cdb0b6bc8e33dddb04609. 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/USLZJ2352099.
PA UN BLUNT BULLEKELS WORLD (Remasterizado)
Secret Family (Special Edition 2019 - Remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0169a6b91230de4c7f038398486785fdf5fef2163c7fe4ea1416c96cf423b0b2. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/DEKB72042922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ae7c0fa15bcb85d2c773352c25469e1c5f6bf5da9aa7f69be4c07e56a1d609. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEKB72042923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6312a1786b176e3c180eb8b169d6b60f9ffd64bfc043f6b384328086eeebf6c. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USLZJ1964514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d536cfa68489052d02e54c84b0388b1a26b58dfa082ed3f2a8ef64cae68387b. 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/USLZJ1949319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2decc8e560fa17361b7ce490262ef716a3e628860d7dde0aa86583b1e6f5a0cd. 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/USLZJ1949311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0477661552da2c0111b8e747dcc0ccaf594d26a4389679452e7c7cea036f6d. 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/USLZJ1947251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92e2e65e2fde4d30e070cda7af2a8c10ff9b86dfac3d12756b52e6a505d9f2d. 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/USLZJ1911691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3368e3b0db39230cdb14f7bd1fe4c02fa7ad48820e591877feba72874b5d1da7. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZ5FN1850913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754c5c6aa88321a17271f3dfff178de5d55ccddf77463523436d2a29abbc18a7. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/GBRKQ2497915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092058311f96d9238b44ba7de7e3d8415bb1df002c000230b36fad082d6dfbaa. 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/USLZJ1901536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd615de848490efdabb7ee327b7fecdf8a0f0479e7b5d70e8b32c318131f4254. 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/USLZJ1901515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b232f80dd1af0ef572dc6d58bc0b5b63073f1b8c0b930a5687061cea6b439d. 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/USLZJ1901540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5111577fed6398e1d7a05cf6384379b587773cba27558e234f76ba620b97865. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/USLZJ1901532.