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 0x9c242d5b7bac5d770e2a7be97d5e7073f3d640fac9facaaa877ad7c044bccb95. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4824c498-8c07-413a-8349-9d1cf5cdc802.json and https://artists.proofprofile.net/proofs/artist/4824c498-8c07-413a-8349-9d1cf5cdc802.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 0xba11771e2f35d98b05bc1b738ce30ef55a5f44fb301bd11cb9b96e04fa95b5ad. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRACT1606673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e487ca274cf85b680a8b3e5938ffb86fdc8d3a16981cf171b24c5761dce1f75. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BRACT1606680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9911be040c035e29f380286a22234250eb3c54279714ca73761a733a5de998. 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/BRACT1606681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f81ed063803a919a544b818de03120a9e64681978e3b6a43f970ea6f50bfa95. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRACT1606684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9fc40708d72aa6df9617c4fda8166c2ad460c274c5b2de1570611385758473. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BRACT1606687.
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 0xaab3432b0d908d29a7f11d6d58d81a1bd4755cc61965a1821833d233e8111fca. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRACT1606506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2893556e7236bfe62703937f78d42a5d3dede106418c14a5956c59e76f07e3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRACT1606508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8267b0ad7f3e7a60a3216739f84146ce660253ef0fe6029afe6b34f05b66e14e. 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/BRACT1606512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1add93beb4a19818cf9d4b6b48fa3d503419baaef611f808c5a4cb024d4bce82. 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/BRUSA0700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996c95cffd30d8c6aeb5e8204a5723e1e679322f7bbdd9a1f6347b7e5478dd6a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRUSA1100142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b70898a08754f5d3c46c6e9788a2f8d0b3bb232faec8a5378dde7bc38999e1. 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/BRUSA0401890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e58db1385583a0a488d558a36b97ca994dc4e3faa20388fe189e7d55b93519b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRUSA0300211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c25ea5e50c921c8028146b60ccc6a4b33560df08452db6527bc4357b5eb4753. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRUSA0801234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf376ea6d33c91a80ba9065c82e82582ab66340b3a093d95e333a549569617b4. 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/BRUSA1100141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2e0ab4737704f78c59f58fd98cfdc4f7d191109556cee939d861c04a63e8b1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRUSA0400962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d2ca920abce67db0d11adacb72661418cbd17794b044480e00be72552b4559. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRUSA0300418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e490f394d8a8b295cc868218fdb0c002c9d051dce99c5589896d7679a954e1. 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/BRUSA0401349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdb55ef8b4826864d922c6162c9ed0cba2a7cc976ed55f06f82a1a3d7aa02cb. 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/BRUSA0101361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521b77d6423197d3e63d84d4a2d01eca66745af858bb161e5f634d78084d8ace. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRUSA0401351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28693943f748aad3234749325927db803501d59a7e0ddd9261ce73d932b71e8c. 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/BRUSA0401259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9493f39f41d73d7f5ed9a20f5137a12ab77018a2c4295e0e964d9ebae11301. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BRUSA1100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d31eebc9ee7becb731a85f654544db5574190a8685fa958863faa14467382e3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRUSA0500613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e455a714e10a0cf3280d826af529c65c01d6b4edb021a6c74271b5810e826c. 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/BRUSA0301105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a66a249571863c47f3b10eb125d001b739a985ccdd424a7356cadccf62a137. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRUSA0500958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb378793bddf3c065014aa6defa955337b8bf1ece4fb974a98c7cba517c7f76. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/BRUSA0801223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01698c81973d22c191be66d6d161e8f73f429c7a3802d22f1a35040b10e60391. 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/BRUSA0402306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecf2055a1639412b52de1c74915748c468208d6c33a7eccb8430c79a8f7c23a. 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/BRUSA0801239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb951a6655ae31c17353fc34deb3f973d114459fb7cf2c4bcf3ee5620b6767d61. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRUSA1100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bfb906f3a46d13d1165719f476d6a0b3defbae887b65790a68eaa229344f1f. 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/BRUSA0401414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc746119c0b3f992d5a52fa7a25f4a16e8f277ae391dc59a7d0c98fdff81a9a29. 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/BRUSA0800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd529a7d7f7b918ec9d0049f3001c815bdc10b49a41144d3974e7acf39ea92ed. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRUSA1100146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd332b6b8782c053e53e1a0c94bab1ddbc98084e18d04641e99853e43721d79f3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRUSA1700339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813c783503b5284c025455f5f9d09b28795b2467740a86a45c5dde124a7e3f18. 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/BRUSA1700343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375300cb5cd5442661fe0a814fc7dc8ee6b2b81b4d5a138c7404952f74d4b850. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/BRUSA8600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb6268b22cfcb2dd5944a7bfc49bf9fc898afd7b6a96c17b88bcf2fcfd79ec3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/BRUSA1700342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549cd806ba2fa9d7b5e48ca92f65dcb9d8c3e6e2bdc7b059e66acad2ca87c291. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRACT1606226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a4cd74c013984a2bd730a10c051f6e013da864e3a6a56302e7dcccb451ec3e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRACT1606232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0cb01bf1afd17e8cefd03ea3959b33782d2d5f7ba56e48c95761bc5e3307bc. 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/BRACT1605988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb646d834e60bc62e4310ab90329790270821352f6f1dcc6b12819a40477454d7. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/BRACT1606003.
TCHÊ LOCO NA SEMANA FARROUPILHA - EDIÇÃO 1