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 0x8eb81a7b74a0489ed4c72180f584d2aa7b3800d5451b4d3a915ec338d3f33b08. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df1b7814-4b48-4a87-ae3a-6d88c91dbd5d.json and https://artists.proofprofile.net/proofs/artist/df1b7814-4b48-4a87-ae3a-6d88c91dbd5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Together for Life (Ilias Katelanos & Plecta Remix)
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 0xc074a74122c312b66323e2a94ef71d3644fd879bfce729123298c80a8ab951a2. 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/US83Z2484558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc074a74122c312b66323e2a94ef71d3644fd879bfce729123298c80a8ab951a2. 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/US83Z2484558.
FSOE 929 - Future Sound Of Egypt Episode 929
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832ce2ca6fbe96448bde059dcbff634c0576579fd8fd24e03ec647f92a664528. 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/UKRMQ2501152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903516664add1df857d681180d01f49fc0449aaed2fea4f56be92b6558fa9ace. 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/UKRMQ2501159.
FSOE 928 - Future Sound Of Egypt Episode 928
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29486b0bfc7e28741c2296c7c34a148bca51e02bd39067391d4a2bc9138464df. 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/UKRMQ2501120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cf90d85ecb04ca0ddaf2975da86d9323493de0e0c8c5813edbf3245bbb28ae. 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/UKRMQ2501121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262612a0f1706a3e94a6871aca55e247e667565dffd085d28719cd4e39992a7c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:01:06Z), 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/UKRMQ2501160.