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 0xb65bdacd8bae62010424b915d1129b2bc911100bb3733a3ba5756e22f154c6c4. 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/fc58fa6b-f0ef-4a4b-acaf-49012c7198eb.json and https://artists.proofprofile.net/proofs/artist/fc58fa6b-f0ef-4a4b-acaf-49012c7198eb.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 0xaf18777ecf132b0c139c6ce3574d3b6dd3f9558130d53c1a7889160c678d1e8e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:47:49Z), 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/FR33T2213402.
And If All the Stars Faded Away - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43b44b62b537725eb24fee6f6e02331d578ab23f41c5fad9ac7b2784258cabd. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/FR33T2213403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488dadefdfbaa2e2d539c04b42d13a7a45f542a953ed6dcb7990918f6fb2e036. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR33T2213404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443f158c2c87271eaa204189e4c3c49dc01f15e9b53dc98a5dbe218a1146216a. 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/FR33T2213405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab6d385f022751065dcdf9bb56bc9ce287fc547d514b0b14b08d0cd032f6d24. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR33T2213406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff07eb44d0ca6232180f3b47c7cc517e55db509f2baa6d4b95cf7bc173b42499. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/FR33T2213407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94788c809c87db7db93f751505c21a273934e6f2beb45c84e57df17f916e63b9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR33T2213201.
When the Frost Comes Falling Down... - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2caf75258987a4c9cfa67697926ece903c01cd62092b698479e305428953bf. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:01:37Z), 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/FR33T2213103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67901582fd4614af0f41385019cadc9e7e847d26d1915cad6638a2f1116cc1f. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/FR33T2213303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6b0da6e15f53d262ba2cbfc5bf4fbff96e6dbeb7fd954c97cb89f933568907. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:46:47Z), 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/FR33T2213304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d04d39f070e752535fadaf4e41bf8c51bd393ec03ca34131b53dccb04998c7b. 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/FR33T2213305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce61aa9a002c37fb4157d616063b459705716f04315709af953ccf5184a20592. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FR33T2212901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8d3de56cf42152508170d5e7b0f02c00513306e0310f19fd7e1484f237395a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:31:19Z), 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/FR33T2212902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609e14d3a6e468b6fdabbab385137c6dc50a7945734540a4211168d9d85e27be. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR33T2212903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264a8bff95c78f7db457803d9501711fb10264be743e945307c5de6273376cc1. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:41:06Z), 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/FR33T2212904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6226ebda7641e6094b3b6263f571a5c97ba49898374a3557cd504e4c4a0ed1c7. 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/FR33T2212905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6836ed93b4447917ee9a36d562bdd6f094f9d4ab5f0ec46c6be2b2df4b1098c6. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/FR33T2212906.