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 0xb682d811140a8c96405bd282f4cd897498f901abf8b26aca83207c82c4b2b607. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbc26deb-5dcf-48eb-a106-61b13e40fa57.json and https://artists.proofprofile.net/proofs/artist/fbc26deb-5dcf-48eb-a106-61b13e40fa57.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 0x0114306d0ef033ca87d096026aa369986bdbbea9dff0cf4f9d850adbecfe03a7. 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/USCA26800300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf280b051d282739230524f61ffa40f05dc38c3663d455b751261d68a1095b1fc. 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/GBAYE6300745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bb4f1154a9ee42059658add48dc080853fc24c9977930285f18d1813eb3bf2. 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/GBAYE6500463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef36d8eefc5b8ff13ce3a01e22c00562b8d31e2b9364bfe2f96e7bfbfa89f14. 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/GBAYE6500391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc81c64e1537718fd576f95b138ca52f2098c6274a722c45b5b67b82e7d96ec. 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/USCA26800302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ec562481c0cb74cca0568dc27bc7e102a9655fe615d5a71d9abec5773bb6b0. 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/GBAYE7800700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a00d8dd0c19a9ea684d21a4cd132405cb2d147fffc0e163e5e5ca13829795c. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:51:11Z), 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/USCA29901772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1f4a80d57b447f1ea52aaa594b65b2d1a01e30c68bb853a6abb6c1d6880b96. 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/SEAMD7029110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b03a564a2ee653cd63a6d136849d66196f55b311a4b5808fbbf457bfdcf3e3a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USCA29500337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35cc0271e76492b41f963d537e6ed819c54aabb1a60c6a1a6b9de8b168144fc0. 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/USBN29300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8f0c3b6e5a40ac32275fc55081ed2c9166538e43347904aa0c102b08cba6ad. 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/USCA27200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d4799013e1f8f120c909e3762ca0ebde0fc2872875a5116c14ad394cdda7d5. 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/GBBXS2001333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b75de45436a0058759afbe86e12daa568ba2e8f3a423b6a6c7db98be56cd7a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBBXS2001335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5894c0a60cfe6742940eb0e32676777d41b2d7b7c27ab51ca4ecbef3db95c1. 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/GBBXS2001338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa31ca0159694e90413770357dfcadc02e54a125c2c9275e73fed7491a16ccb0. 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/GBBXS2001341.
Evergreens You Love to Hear, Vol. 2 (Remastered 2023)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02409d3e4ea4e2b4daf9e6beab7ac806b2864960d2bd12cfa768d65a95e35ecd. 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/AUXN22029298.