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 0xcc349daac4d5050f60c06971fec1b8fe91535efaf92183bd0e9da699823bcec3. 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/5d9cf416-8cb2-4a15-a6e4-ebdb77dc68a9.json and https://artists.proofprofile.net/proofs/artist/5d9cf416-8cb2-4a15-a6e4-ebdb77dc68a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Heathers: The Musical (World Premiere Cast Recording)
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 0x28437b99477f991c92e835a0b82355eb9d6189f9e49e19a7ec87bb8bba29c006. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629da38fc33ce9a1a0be9bafc86c97c969628dde57d26ce3a86662283f056b01. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87873727b04dec90153e5f795bbfd0d39dc2970a6966dd1a09146ea26d249685. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493817ce739718dd80b5e000736bcd7a53862e120b805c0c662a1ca80d94face. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8dcb375c4e652530495b7a99bd4a3b82184ab2db8f8bd574cf4bc61f8bb2f7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48de7c474fd8b47aa3a4745f7ee281f4bfd7382cd8816ba1401f359c293595b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc548a124effe9fab38e96dccbf12213ceb4449b0744a6f30744b7fba711afd9a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c88c099e6e70ada3f8d0fc2023a3bf935fc9897a29347760780fdad38f7d90. 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/US6W61422229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa402b3697c517254f5519999c9f9930700bedea1bfc8d66dd819be48ac6cf165. 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/US6W61422230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c75ad49e18226441468ccb6d9b7b2bc630af0ffd6fcb474c87ec377441daed. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41601df1a87c51b08c26a5e11fbf671dfd1a2b99772fef8252ac18bc4adeb41c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a02648bcd7f47534854ddd12dcbf99050abece3116515b9a6c005594e9fcdd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US6W61422233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d43237b40d007a71134c7b39db16977e4863b742b98007a5de9ca6752b0add7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946aa77b31f62bda6cf8e71346ca015b00181dae61509fb59fd757328d13e18e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US6W61422235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f45f76d6d9f9083386975f4bdbb2497dc0176ba4f54bf568f05e8978fc598f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3893eaebbf5d27c13308027e852756e7217ce31235b2b6ac6ac37e20b1bf594. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafddd5f4d118c78683a11abd397e6a883bcd75b39c5bdb585d0c11515723ee22. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f24c0d2bbd209da24e9d5ba6a2b30f9d13c4e01180f30ae4de4aecc5957c9a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7b463afda67705c144b92bb3be4c1e88ad3f03041b4d6a7ee0c8332ca673b5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88d7902dd340037cd8942be8c8705b1b784e189fe21be57a29b4624b1c975e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US6W61422241.