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 0xe2e08bd8d65d4f7b84c3d0197763feb9d25d1b044b992a6d91aa1b992516b0c5. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95eaabe3-dabf-431a-899e-d9f3f04a1137.json and https://artists.proofprofile.net/proofs/artist/95eaabe3-dabf-431a-899e-d9f3f04a1137.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Radio Therapy - Pt. 2 (The Classics Remastered)
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 0x42fdac7b6c7c25ba85b12cf7601bf5f057f03eface392b06e96bb1f990f1771a. 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/GBBHF1310799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6181f099bfc89dbe90d184cb940b92eb20f746b6d5f5a9076d6bd2ec94993931. 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/GBBHF1310800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180d7e18b8669e8aa11bb3bbea5b50eab4beebf6cef05e4e01f2ebdd6fc1c53a. 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/GBBHF1310804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a262d0e8ddd11e104934c7a585ced82e74f634cf4f69ebaf7ad88a5e05fc17. 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/GBBHF1310805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dee25f86a40dd3a490d6a3d6845caac4931de20ca4d7d5d00372749c036f3b. 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/GBBHF1310791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce1e481393dff32b8df1dbfe5da77a2ac92329a7a8e6b2f6ae4e0c5b38e8191. 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/GBBHF1310792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cf2b5761ef8ba6b11e9ac691ce1b02b339eef8c0fd63172a8ebb276471c013. 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/GBBHF1310795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3205e41bbd47365228300a9679ee5cbf9c59d4de1b52960717225dc915a2fc0d. 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/GBBHF1310790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf503e75ca933bcbe29cae2e720b15776ef07bb438d6a25646c96d4d29f907143. 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/GBBHF1310798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b186d18d6051e64c432d6bc51161d4acfe77bd4b4b7c8bd5467dc79b0f8074. 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/GBBHF1310796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939ae9c2cb0562960d80e8262b4da2567691f951684c98a7a117f4756daa6239. 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/GBBHF1310797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b4df8610c26d786e7725f0004f746409ad45700f1a44435c9f93527651bdb6. 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/GBBHF1310793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e2b51dbea7249fed3ce89a4f3ca69cb753846f61daecd14307af4c4930ded8. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBBHF1310794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dee25f86a40dd3a490d6a3d6845caac4931de20ca4d7d5d00372749c036f3b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBBHF1310791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3205e41bbd47365228300a9679ee5cbf9c59d4de1b52960717225dc915a2fc0d. 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/GBBHF1310790.