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 0xf342a2be5a2674e9e5744c3b7b7e23e2b13e4d3ce178a00108d9841d68ed14dc. 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/f5d84f93-6049-435d-8435-d88715ce97e6.json and https://artists.proofprofile.net/proofs/artist/f5d84f93-6049-435d-8435-d88715ce97e6.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 0xb7f1cc00dd657af503c3167e7e6b23a96d7fd264284031a8b090ee68d04a2a70. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM6N22145906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac0a37901cd7e7fbc3b7e7724e2878850228b33e8fa08487f3bc703f0d2530e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QMFME2029377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a76ab42230e1af1350d8285fd846c29964b5a712f663d373b681d5a1e2284df. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QM4TW2118905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf4a99ca726578039541f504013a6e0b67132df36f8a5189ce8baa69ffadb1f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMFMF2110533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06dd979620dee03a7868fc5e769e6739f0b0e89436b86c8425989fad8e691d92. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:32:22Z), 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/FRX762204798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcce37151d512e1f1503dc8bed8bbf75bca2c9d89ff71ffb1b01804b83bb1ee. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX872202072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb296057c3c559b5006761d54b20c9f9272b19a0da2813c2c065ee39764c32648. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/RUAGV2401443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60d58c2a743475e2aade63613a35e75759c7579586a2428e7afb17b90443f19. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/RUAGV2403299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5a613d97d77b65b654643e4c3a0d1ab186db2756ecfc99dfa8278da455fb47. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/RUAGV2407011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814f6b04c7b796cf8e0ec14295ba17e860ac7379ba10fb421a44b33e77591476. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/RUAGV2409088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee9bfd9687420bd459356e0179dd3c2e57a2b20e0ce973ba46f97651699c691. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/RUAGV2410632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7464bb0b15b56cde8e6511f4faf944cc8e3b0411b77be8e16203a613278309fc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/RUAGV2411106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda58419d4847593dcf50e5cd2f2d202c707a6dcdf0456db56b9fcf9851eae54. 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/RUAGV2505669.
Mufasa: The Lion King (Russian Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18476d0baf75f63733c82cb9749b973aedc91ba4ce9e644852ad3bda9d061caf. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USWD12435125.
Mufasa: The Lion King (Kazakh Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eaa612332767158cc02675eb352c18e368853e3412a9e2bf6390a368fd28089. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USWD12435131.