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 0xff343b00575750e8ffd70a001c7b986684acf7bd88d64fb2566cffadd67fa66f. 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/698b8260-1adf-47ee-a5d7-c69e10555d62.json and https://artists.proofprofile.net/proofs/artist/698b8260-1adf-47ee-a5d7-c69e10555d62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
In Between Girl (After Hours Mix) [Slowed & Reverb]
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 0xad87360d92fff6c42aac65689b45907a60182c5bc560e959d0ac9b1ac6430d22. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/USHM22128420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51864f1b923398f78ef76db90928c1c3a65ae137282ad7355a54c4dd9168f34. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TCAGS2353256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646c4b245957dfbe9c1c7af84488f0f7c6dc7f6f7d46ce7d8ea091c15eb7464f. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/TCAGS2353303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165d8397971130df5f2c033f6e5c32b3aebeafb50a6630d13e00b2910bd8bd6b. 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/TCAGS2353306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2b8b2cad44d02c52ac01c4e8776fef4ca09d6ffd78847388eec5daf03eb371. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAGF2268451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0910d1fac91f7c1e02e32f8e2fe920b46a99b9bed52c596bd35cde89b0c190c5. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:16:59Z), 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/TCAFS2176784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb153969c7741580de50fb25359ab468dedaf119ee4dbd46d790f89b1466d9da5. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAGS2353357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c801b41143f6dd0c3d003a4789830ef4e03614bed4db15590296222a0c0af5. 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/TCAIP2495297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe245369b8dcb8a1ac2b178ad30ba011aed77399f69a5042474a10e362d54b10b. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCAIQ2495073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4239a001aed20d9affce362ce0b3cf0f016dbecf7071a8e74a4ebb895118610f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAJL2561715.