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 0x907ed0124e2cfd6682fb2e7ce0fdd8625c8f02b195ebea51bd5cfe14d16db814. 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/159ea335-e5e1-4d4b-b73d-e3ad9696c402.json and https://artists.proofprofile.net/proofs/artist/159ea335-e5e1-4d4b-b73d-e3ad9696c402.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Lion King: Special Edition Original Soundtrack
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 0x3cb430780dec1cc5a7a324345ed84e0b4b062ea868d4f3dab2804fe25ff6b489. 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/USWD10524336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ff63e056323938a65944ef7e599bcd641f44c7a5e80847041eb8ccb05ec635. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USWD10524337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf956d277a4aadf915f22fe45238bd0fa55251c5d4e3909404951707d40fade. 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/USWD10524338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd29f96b0ede61ee40f08f730a13b2f27e0460bbba51a1302e0f7773243eed9e. 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/USWD10524339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e76ce0a0bb6ebfdbab7bbe1ea21af20f9c173e3567b460c1b9ab70d815c0a5. 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/USWD10524340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72eabd52ff4da35c13b4fd42fd43abdbba70b4eec442898d90f853aa86f83639. 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/USWD10524341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b0dfeaf89feb193159996c645b5283f0b346ba4a2747e12116cfc9f1dd9758. 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/USWD10220755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eefb6dd6def0d387b78ba51319facc3dbccf1d937e24f53154fc52941dbb5f2. 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/USWD10220764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c003c1aad8ab6f546fb901853b1e3aa119bccdd3b7ed84a410d9902960c1bd4. 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/USWD10220765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d728a04b2f63bd7d1d89790524c33fb3690cd1c8b2e05ebc2b2de371039207. 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/USWD10220756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8742af4249facfd532e29a931fce7b9da59bc60e3de07a5c5439cfedc6ee291a. 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/USWD10220757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960626bdf242335fcb7221f3c27b297bb7942d64a74910471eda7ef15273fa82. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USWD10220758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088353ba66a3072b9d2269a2eec189625a40d1bcc09aea480eabddaf47ae0ab8. 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/USWD10321343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43942539551077f7b13fb7d3561d622b10fe95f1dcdcd63a2422854a4db7cb6. 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/USWD10321489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7468ddc81e6ac21269557afc8228083c86c8cc7db5cc2c7c5a41c9d41f3062f3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HUC571410142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd6e2521b818ab0a28d33a284f98292a5a9bab1359f28c7b25e7f300ddedcce. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/HUC571410152.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch