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 0xd9ad2d3383ac8a43c819d6f27de3d0eeb1b394125edafd99a85cbe384d940e5c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac2fd0fc-8cfd-460f-bd61-e0e0ca60696f.json and https://artists.proofprofile.net/proofs/artist/ac2fd0fc-8cfd-460f-bd61-e0e0ca60696f.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 0x6ffedef1c830b2bf09d579146ed125f41873e53979f583352005c68866c36bee. 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/TCABQ1332747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9e4ab1ecb4cfcebba1900748652dc05aca6a377246c6ff697d32532c0b3d0b. 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/TCABQ1332748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f363c2955ea93bd212441b97d932b182a7aa0af9d8293cad4e7cbcba51df8c4. 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/TCABQ1332750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cf094fb6ca0266fa37bf5556b71efff4baa6476dc32660fcd89975211afbe7. 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/TCABQ1332752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342a3a75f9be633fb2cac633e8154987bdf449e4c521050722ef77c71d3f6888. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCABQ1332754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77076174cff19a5e7ae909cf0ace6546e5949c1d36abc4947dad1f384b72977. 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/TCABQ1332755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cc6267253b0371949b8fb29a466c758ff86ea833fb2fd3fb0db684d80bba50. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCABQ1332757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c883bc9d3e40c0e2200997695ec695f7bb118923e4753027598b0979ef98f7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCABQ1332759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a94a635b36ca02cda8a61ba2edcc69dc4e317830f60ecae09657c2680a674b. 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/TCABQ1332761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe12d10ba7be6dc3721160a12f27d311173ff1614e7288080a3c9c52d568dee8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCABQ1332763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a83d385e66ecd36dd245924cdda88441b751a7f01b3f071f58541dceb3e4919. 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/TCABQ1332765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0dc5ff231183a5d4268a134fbf78b74be9737d3919146cf8fb265f67de09f5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCABQ1332767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f525cf02c38971c9809f01efbaf78d7f795a1b8169c27e95d430726e3c36073. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCABQ1332769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8fdb0f4d4d40ab6a2c29f4d2039011a74e15d7d693537fe849ab7432de0838. 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/TCABQ1332771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18936fc3f17970171edcc5bf3dfaeef44e9e318c73057c6b0c52b90db22bc3c. 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/TCABQ1332773.
The Father's Embrace - Tone One, "Thy Tomb, O Savior"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8e36a1591ca7ca6521dbb76cef86ac77ae5f2b8b991cc6913112c95106de9d. 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/TCABQ1332776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1d5c122d87b557292b6fcf7a20d29c0dceca6aa4a026cf9f2bc727b0eb87d4. 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/TCABQ1332777.