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 0x881b8948f3e92443a9cd7f68810193ff1052b7e4eef4b085033aa4d8fbbc2da7. 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/ecb6a007-8f06-47d6-8b36-a2f78b7bc040.json and https://artists.proofprofile.net/proofs/artist/ecb6a007-8f06-47d6-8b36-a2f78b7bc040.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 0xc8f9514da001f21de673a8bf9a310243884dbd7f693eb06ab1d42d77b6f426ac. 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/GBAFR6610062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b295f1a425805aef5f5649c6c7ece2d5c3eb9a302701af8c38966acebc22922. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBAFR6710050.
Red With Purple Flashes - The Creation Live
Our Music Is Red - With Purple Flashes (Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1965b14d95196aa588194f2c289e6cc23b8186c28c7a4aacc21083302d14332. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:02:48Z), 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/GBAFR6610061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a17b2609c8c7b6573aa8e9f800dc78836d4ab2fbfffefa5ea2107829799dbca. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBBLG6600071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ead2a12ba54c333fa5191aac8b29515f66f46cf6d7299497f02177337d08552. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:44:50Z), 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/GBAFR6710051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd263265f74911c2857d7ecbc87989c1bfea912d5ade6b0bb94f68acfc1605be0. 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/GBAFR6710052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb742f0b0dce1e5070fd9d970e10e2ea04412ee516794b0077eb57e0a4db627b8. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:18:34Z), 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/GBAFR6710053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78164b9354d5e5394e9f3a8adbc88eaac218f121a088e3da21337cce5ce39a7f. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/GBAFR6710055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa521f8fd2af8c7f8f7d84e53591ed65e8646bc1ce146980482675505867c62a. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:32:26Z), 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/GBAFR6710057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafde30159bc4cc907330fa64871f281692de1f07ee20b286131db6846daed259. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:05:21Z), 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/GBAFR6810029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54bb314c2db84fd7264646ba499b43bca8d33a6e5413138e83e2a16b895770d. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/GBAFR6810028.