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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd8a1326fa0bf7bd3d6fdcbe7b0ee7a15cee621eaefcd1867ed11bb9d13d082. 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/05834d8d-bc4a-4858-9328-1526eee131ad.json and https://artists.proofprofile.net/proofs/artist/05834d8d-bc4a-4858-9328-1526eee131ad.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528e42dc13eb896bb09d62381b0409f3999819863b2305fdc24cc4e61e16018b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/IEDCZ0900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae04f23cfb4dbfc8beda9de8cfb8b62a24f93a05e89d25952673079eacdb8e3a. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/IEDCZ0900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302347aca0bd9763b57dde28c6e96af7d971709e06289e71d6332fa0c747be91. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/IEDCZ0900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898b2639b3ccb2a4365c48e8896edac9d1ef1205aad87fe891a4c8176a82fcab. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/IEDCZ0900031.
The Home of Laughter (Music for Solo Piano Vol.2)
Don't Go Back to Sleep (Music for Solo Piano, Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0932fc7d8c2fdbef8af6cd3ec0f48c6774ad06308ca7346b808632ce05562d7. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/IEDCZ1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae986977299f90ebf91b477b8bf529792eb16af211b4d0f20e73388349170b9. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/IEDCZ1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070c7c58dcb7a88c0af515cfcdc02547e22a6a6672e6320755b9391f0a5ca76c. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/IEDCZ1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835a74d0bb756392626414aa380e947920869543412db852c1a99135a987e896. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/IEDCZ1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b35979cf084f05dbf68710cae66efcc22bd0498758877948ef276b81d5890a0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IEDCZ1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82acc2331c28fa4b561b6e094713c2c4f3f8b7854e02ed3056d15171b1992161. 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/IEDCZ1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea9546802ae7151f10b771876787a914a519385411cb061377ec87f036a8dc7. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/IEDCZ1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3da46628592218480e8c10328d489e990d4e40036d95e18b2f9a81f46b4feb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IEDCZ1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b3f3ff58f3e22fae1ccd02fcb33f45d319e89eb97354b870a1842fd3044e43. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/IEDCZ1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfae1d2be33896a9336e47bcaa2718d2719314fbecc75bb0b30bf32df09c08e0. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/IEDCZ1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a4ef7d3b6bbf34eb79d70195882c371b99151ebe2e61f38b59a55dc21c7dd3. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/IEDCZ1800010.
Songs from A Story of Light Vol. I (Live at AP Studios Dublin)