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 0x61fcd6b046a129b9234a5794f7e2a7a74c6a3dab3a91500f49be829cb4ba94fc. 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/e206cc24-f46a-4ece-b911-616b776d79c3.json and https://artists.proofprofile.net/proofs/artist/e206cc24-f46a-4ece-b911-616b776d79c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aletheia (Original Motion Picture Soundtrack)
The Colour of Milk (Original Motion Picture Soundtrack)
Moonage Daydream (Original Motion Picture 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 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 0x2474f253f3dbb60a043fa37e9e0916e38e36bfd6e7529bffd1bc040315193314. 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/QZES71986598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e6866a8faa61fd39b823c4a04972118f4174c4a3567e6b89de16855fa811f7. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZFZ21968365.
Spindletop (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffdd1db7252f800d31c4dd40b3d37b4747cfd30140ed5e44a73c368305cc995. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZDA42013847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84f0d37076d15a8d2993c43f65d9fae5a935c73ffb7bf329b9630bf6838ce45. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZK6M2079168.
In the Pale, Grey Dawn (Endless Leopard Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d3a71bce73b38654015a2d9f64a46df1442a06154bc1b4080d518601d8cda6. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZK6K2116308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa578d48048de2e84cbd96b644e6470f2a9a48a5f63e5ab57c29b1651d21513. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWV2184250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7973bbb6660c752846c897ae79141c982768344e8af0e247753be12b88a5a7c9. 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/QZPLS2155558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0026c7009f706a96064e410fff34f3362b385e15e0a8dc558cd9e21e1e363c9. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZK6Q2226206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a26c4e6c5936e27a11de5a3f2e138ccdc1c487dc062c7f18963d89ef08dad91. 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/QZMEN2485440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f34967f01882b1a92993602e5df81491c3b50f2c4798dadac09bacdb52f99f8. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZTAZ2447085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f34967f01882b1a92993602e5df81491c3b50f2c4798dadac09bacdb52f99f8. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZTAZ2447085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6cbd1bb6bb4c84c2d9f576de6b1729f1162273f567940468a292223fb62322. 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/QZTB92407096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd0ea45f2f2b7da40830eb6e85a74beefe7d82c4dfe1d28417c702dd2da9de2. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZTB92407098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a50b5a0ed9824a6d0a620a37b3b1a5ff1065d0f478850075e3e2c1d8202e92. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTB92407099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44fd14e01736065003bf54192f548ac486f3d3b40c9d474f0ecf375ca8168b1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTB92407100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee0e268b2fe126d0a2211d8322730a7c348b95697fc2333ce32bfe316feb7dc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTB92407102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb202be6121340dd1cb6a591797136f3a67ce70fd505fc06293619d548c883d. 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/QZTB92407103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759bc28c0d2258de9a33fac0ecc4a433b903e7d89f8f7f5ea727be6cf6a252f2. 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/QZTB92407104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3e6372d8bf366391b9e341a44d64c42984d55d1199fd9758a50caaf22ac174. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZTB92407105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840f166ad6e0585ab9572a930e2afb1f512a3247b74bfe5273aa2dffc996901c. 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/QZWFN2488127.
Music for Mountains (Solo Piano) [Solo Piano Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ea28cb751a44cd97fa721348e20cf398f9f4e6fd6491670cf4e7e6610dc144. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZWFN2494781.
The Heart Of The Alps - Solo Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4daf446cab66d1c124bdf99e3180695d62f3ce355e9568d9654251bab2d21480. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/QZWFN2494782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302ca3218065a512fedd650db77054b4f7ec548e46b388be470998ad2fd58274. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZZ7U2446021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624110d6da468b684c0302c29f68fd25ecec5fd434580ccbc5a2782da5f567d6. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZZ7U2446024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a07bb90f6550ab488a71dcb9b7a5c5221f77ff72eb43de6a3e15617593b8c00. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZZ7U2446025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f0cdef89969a9457df9a4c9194240052fe54cc906064b3d7d0ab93a7fc172f. 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/QZZ7U2446027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80586a46661759583d5c7fd2e4823de241e2950ab7e47c7c86e2e1ee60ce17bb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ7T2491634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47edb809ed25adf5f5eea71170fc9a4e6d69a34227f13dea0dced69226c0c4f7. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZZ7P2577697.