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 0xa0a3bb1e3c5d13ca7de37e47e365bb45d0a89f3c38672df09563d5b7839da84f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65699f94-7390-425c-8712-d41b7edf876f.json and https://artists.proofprofile.net/proofs/artist/65699f94-7390-425c-8712-d41b7edf876f.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 0x52fbf647798456682289110079a1af6d49e24e2029f05ec15b778739c1a53b7d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTVM2410495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1c5fc662e44bd95fa63074a932ce359445fc8b10aa6d9423dc6e56cd3e060e. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QZTVM2410496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ae39cbf4e24672ba48de03a17e1c42f77447775822b8610996fefeb8613162. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZTVM2410497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2457033278acf9a163256eb34d81153adb7e399372e5a985553cff3be4573552. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZVEM2306872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c60626db10491e2711f8dba274c0f4df9393323d49c4bea7a340efa5d3491ba. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:27:43Z), 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/QZTVM2410520.
Forrozinho Clássicos do Nordeste (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74580cd462ccf12f4d917b78e0715a556b764148502011f87549dac23c19134d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAZ2384172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7e1a7bc4218cbbe54956936a081525b743a75457285e5b8c06dfbf4a9f3b79. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZTB62312453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5197ca20a5519aceea2ba23c9b5861af131f6299c069ff9173e20d7f90aed63. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTB62312471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf821a8dd7183ef3499eda70c705e22f36b69c292c9c85690f31c4fb6aec73bda. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZTB62314128.
Piseiro Paredão When Love Takes Over (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d48dc2f15021119f10378677b9057dadceae8167c6464f946caa43442388670. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/US7VG2554548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90c9651e72eddf256b68b17f28866b061eda4d155cda6fe8c250ed28706db8b. 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/US7VG2580307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe92320d31f32508001d44a6a683aee6618ed707a108729c1797d6037ae53283. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:07:53Z), 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/US7VG2580308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7a49249b969b5f1f23b684c5e6e092779297966024af39a6c1cb93a8fbeda2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US7VG2580312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060545bdf48af0d0ba8d0b8c47523e8846fe0b6a8c719394a562a970352a8dfc. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZHN52536909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4436d038173bd473da92ea8041aaeb030de3f5aa412a8ddf45d3b924311dca9. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZHN72595736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12add45f105c8ea317f75b6e41087fea94ffd608decf33318c6091e991db02ea. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN72597421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8c2b5adf38e249868ce629178180571c77bb46e90d7a9390443f2e7c99f157. 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/QZNWR2590535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396014a78c367160738a85c6c94b77167db3ad05e708f7055d8fadeb73987db0. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ILTON2503479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3296bdb10faa631b2e2b55458ac84a9ea46f2e9d0bad94484672a696b4bed0. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:54:28Z), 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/ILTON2503480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825f941117d4f113b8d238d2dff1b59e6fe1e7fe8396e60a28b93c4a60e81792. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ILTON2503481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6306e41ad42998e58d9dcb33e53e4e30cc6aec29082ddb8a86fab400a75b8218. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ILTON2503483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e90ab15693fa383aa445fa3831a8cf4b0c4ebc8243648edf4dd58ef4260b07. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:54:31Z), 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/ILTON2503482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd441196e1ef7cae192ac2d628655b75530b3e89d334d05386e3b1673ff63b74f. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/ILTON2508808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133459dd8a04c9c2539523e8d3647b73763fb8481315284e268801e6984c7ba2. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ILTON2508809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb421e7e7be020d930d7ec8e68dc677ddf4a266e44a568ef16b9e460ca34865e1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ILTON2508810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42921d6c7c6688e039eb02264e42ddd38d711a58db7d7b70cc0b48d3fc80316. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ILTON2508811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256bfdabe3893dd5a1e54732edd99e16577fe960b85b3aa7149a4d4c295e46eb. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/ILTON2508812.