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 0x5aa88d6ef69c6bc4c7bbfc1a6be7c6021436a606c60ec79c4114e1d1c0650c29. 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/0b31430c-e54f-4b42-ad89-2e28557bd0cb.json and https://artists.proofprofile.net/proofs/artist/0b31430c-e54f-4b42-ad89-2e28557bd0cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Romero Ferro no Estúdio Showlivre (Ao Vivo)
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 0x3d0e43aaa5b1dcf063a8773cc7fe3ac25527d1bc365e85d62d5adfbd9b13867b. 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/BXOMB1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1fd1d1292f32369ca97123476022c05e592f89970183b4e165dac220b2df76. 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/BXOMB1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078c2d59e11b8c766a9859e231811c6b0cf2dd8ac3d3e4740df34d5ea74bed94. 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/BXOMB1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec29bad5a31efb865a5049eb95f830aa7704092f400653d5523fd543806ab27. 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/BXOMB1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9df1e56fc7cd0553356d70834ecc7d679ef8d8b296eb2e89717a8de856e78e2. 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/BXOMB1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b11c79c22633745cc0dbfaa0bd795e6c83d54adbde20d1c276274b67e662f4f. 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/BXOMB2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abc328379132a8ee9dc7f3a7d8f3815d02da90932a35623dee7a7036a000979. 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/BCSID2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abd0d97d957c78e7662c17b8920d0e6be1ea0dc37aacea2720c44ae868aa587. 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/BXOMB2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711ef08bc01a8e9ff6ff76ce74dddc4a84482b0c2379ada4ced2c54ea8a91277. 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/BCML02000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb3712b1ac3717d243f1718d6e6f70e399dab6a36d4c11b3247210e1b6a1b9d. 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/BCML02000048.
Natureza Sonhadora - Tributo a Accioly Neto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b2ebcbc60eabb2eebddba53923950793ab64cfeff4456deb2e6c3ea8c4e4d2. 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/BXTY81900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30724c426f6368b795ff9a9b744d2ade7ebf21a59c4f1bf31c4674c7e9610ce1. 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/BXTY81900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2df929e53cb295c4d93c5f5f0e981606a1411bde4a138654fbbb8535353903. 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/BXDAB2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248a65b9f0c56b5c48b4ad7f7aa08ea0c26627cb6216afcdc8452303b297ea48. 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/BXDAB2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c4fa4812b3a9be4399ca655fa7f3579a443b7d077f7888ace0d066b4dc256d. 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/BXDAB2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540c56685a7aa814df34612efe9df8f24f33b1dc074abb3789bc5037660f5aa5. 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/BXDAB2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02910fafb0b9556dfb95882f6a01143b673e80e50f523f65f3f5c19709e9e529. 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/BRUKM2200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef482606c51622ab72e6bdb7fcd1ad5f9f9e375e71accbb7e7ff477a108c047c. 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/BXOMB2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84040ff87fc358457e5be2d0e6f0ac13df10a4a2bf2ecdeb6341d9afc03a458. 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/BRRGE2400530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735515c2468c0239d9b7d34f5d97a5cf2b82a2efbef5420af310ff22f561425b. 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/BRRGE2400532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a96513150abbc6c1c110b52d8dade4979137fc76bf7d0a0d3d171aac8df47e. 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/BRRGE2400411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ab35c948112c612b3ec672f8503fc678a174d944fa61c1f7d49282e97cc73c. 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/BRRGE2400536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b266f4f0501e5314bcb91a61a1611919e2a10ea5f8947d361ad6963f8c3024f. 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/BRRGE2400538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b7c71a7928b12a9dc4b22d6b51e520d9f64dab451efdbe9db349684f78a65e. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:02:42Z), 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/BRRGE2400540.