1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x42f963b23feea2170538a58a5e1df213da502fc218301784bb0067a1f8d5786d. 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/83e9e109-324c-4c05-a903-a30ac6494849.json and https://artists.proofprofile.net/proofs/artist/83e9e109-324c-4c05-a903-a30ac6494849.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 → block OTSBitcoinBlock must exist at that height 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 0x582d6a2fa782bcf00baed2a11be6d1a138f11da7c87246f2faf70f6ecff01b62. 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/FRX452356657.
d(-_-)b dreaming of your latte art d(-_-)b
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50984ae22f70a1a384e720a75ab97e86d22dd79e7ed3bcd67bc0439871a1e598. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DGA072310277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36d339a545a110e180700e7dd18c296032555bb1ded995cb4351accb43b6f13. 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/DGA0R2340362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10eb0d92370b263d8247bca1dace9dee0a47b236f810eb03089f185dc0c85647. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/FRX762475693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299a24be1b1ffc146261e09ff7436ae8ef96972e73773090524c65e22641f859. 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/DGA052448055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5c3357432aeb7002f39231d57ccde2b98ee59f36b6122343c6936c4d559ec0. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DGA052448056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6954917c93a4154086ec4474590c273acd212bbe52fa2216ad4699c23721400a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX452492021.
one & two & three & four & five & six & seven & eight & 9 & 10 & 11 & 12 & 13 & 14
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a08d24adf0117a3d7fbdf9fa934bb70b512a518d5818019f32cc9c0fb3434a0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA052448060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7f16f40974994f7b871a31710385a4b9dbb38402775b99c17e287ed44ce441. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA052448065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc866d13877553fce21cb9e94724300f18d42db11a3e21ccc577248afdb916a49. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:33:57Z), 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/DGA082488366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b6803d6b53a65450da41f5c0a8177c8588c7f777b0def7cc025d9569fcd15c. 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/DGA082488368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83ba8ceb6081e2ec35383f01a43b6982c7080847ca5d94cdd69fa2c1da5ec7e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:37:07Z), 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/DGA082488370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02e0d4b945ea72299396de19f5e121b3dbae798c50b53c1eec62238642e3952. 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/DGA082488372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a04779a9239db41943efc850b8446893a9f2d784d721feec4ef14962c431346. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DGA082488377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a80e2150a061daaa9d10c6ee63a07f834e76b574892bff98166ee4baf73537. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DGA082488378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115a65306bf418902452cd1c6c7ce1b202ef3438bdf80eb69b11f5eb3fdc03f3. 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/DEA622202015.