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 0x0890665474629a5b5ae139946b69a3f781e235598f9b274961cb9e64670d35ad. 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/86409917-f184-46ae-a41f-8e6ca9bedbe7.json and https://artists.proofprofile.net/proofs/artist/86409917-f184-46ae-a41f-8e6ca9bedbe7.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 0x3003cdc7b73771298e0755164ae7c2cb984ed400b2082d2477fbcd5ebc53899b. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:20:10Z), 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/CA5KR2253067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda746d7538fd1e416ba151fae2c296f25709b43587ddc29c313ab596f75c82c2. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), 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/BRVR11100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74b906cea69359fb89fd332cf75e1f8494c889722268921129de3c2c2855fb7. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:39:41Z), 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/BRVR11100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb70bff0a2039822d824a5807a31c5355953af7f2b6b98aa5e96a84337d3b76c. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:47:51Z), 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/BRVR11100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88741b32a7d2ee8c8973e394b718ca25c01641f898bc09752fafe4087d316daf. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRVR11100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d39959c77009d8db0b0ab3e147964edb13250ef87e25c344c0d969e45a57473. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRVR11200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2df2de94f0d27ce4f0e20650d91985342b9ac83a5c62cb3010c74bbae2adf36. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/BRVR11200216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cc65baa5559ffcc5e0fb6d2941ba52bcd4a8d4c66a12a8828eb3ae6ff2338c. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:01:31Z), 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/BRVR11200222.
Os 16 Grandes Sucessos de os Tiranos - Série +
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62110cd80fcaa5e95c489ccdada43aafcd95d78d38aafadaed2d026db4be6981. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/BRACT0300469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fae738c8cb9d70af9c6a7ebd56c08a419a236b51371ff2b32568652e188ccb. 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/BRACT0300472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60758b4b62b53e09717355b46dd7ff0653cd16a71207ed423e0b1846dcfd1bc0. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/BRACT0300473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c62d78d9289623509872da2cbdf620d41de5c616d8b2508f5e5fdc9b6a2b52. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:28:28Z), 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/BRACT0300474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc671fe0e1ab7e75fac324c8f50a32a04dffe756ddee5141fe42ecfa949ba3119. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), 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/BRACT0300478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756d2425107acf44d313ca6ddafc58624226a09ebacb7fbd068cf4f68a1a5e20. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BRACT0300479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f6745b2b6ae69865048e4c35b1b31623b9ec4257c3789445e30e2600d3dce6. 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/BRACT0400614.