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 0x4886edb1fbc8a219ed24bb6229a9cfa41f837f6f72db51854bf827bd460d008c. 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/4a22c4e2-d4a5-4464-a93b-7a385ca31941.json and https://artists.proofprofile.net/proofs/artist/4a22c4e2-d4a5-4464-a93b-7a385ca31941.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The End of the Line (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
The Descent into Hell (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Taking Station No. 1 (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Storm Clouds over Stalingrad (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Not One Step Back (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Zugzwang (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Reinforcing Pavlov's House (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Strength in Unity (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Impenetrable (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Defiant Till the Very End (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
The Story of a Soldier (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Pursuit of Pavlov (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
The Unstoppable Wehrmacht (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Red Orchestra 2: Heroes of Stalingrad (Original Soundtrack)
Across the Steppe (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
The Great Soviet Showpiece (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Wave of Fury (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Red Fortress (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Praying for Death (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Red Orchestra 2: Heroes of Stalingrad (Original Game Soundtrack)
Steady We Must Stand (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Devils in the Tower (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
Red Orchestra 2: Heroes Of Stalingrad (Original Soundtrack)
So Far from Home (From "Red Orchestra 2: Heroes of Stalingrad") - Itunes Ringtone
B-sides from Another Galaxy (2024 Remastered Version)
Jens Jensen the Living Green (Original Motion Picture Soundtrack)
Jens Jensen the Living Green (Original Score)
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 0x25d8981164ee8df724cfec2b1db8a8a2faea7a693883ffe52c06cb2e5d57d02b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USHM81311208.
Through the Pane (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534376d9d2193e81d9a9243a831c435668e2f96736ceac69e7fcd7923541f991. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USE830936247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2909e656bd972a1bf3d0ea1b5e967f404b741982c14622a870382d5eafd03ce. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:32:54Z), 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/USE830936076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe73be7a767cdb66e73d6e1e97110ac2c1746145fe6413e012ed7fe95b2297f2. 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/USE830936077.
Spoken Word (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a5d64870593fcebd83174c8c8f78c8b58aed1320851a4a066406f6b04269ca. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:05:51Z), 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/QZPJ32333269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bef44ce041d9a32df65c110d2ed604f6258342a144441a1a6264314df0ced5f. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZTRX2408331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728e2d94bc1b197ce51f574b7f43ced47ee4dcd07f7363a7cd6af78207c335a5. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZPJ32329249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1b7ddb3f4b124aa464029bca77f340232d4648590be8e5ea5545fcbd5f2225. 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/SEWDL6018209.
Mass Effect 3: A Future for the Krogan / An End Once and for All
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9ae06a0f1081694cdc5c871c714014f86de958db0d3f9892d6811fee8d7cdf. 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/SEWDL6020620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1b7ddb3f4b124aa464029bca77f340232d4648590be8e5ea5545fcbd5f2225. 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/SEWDL6018209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91f51b24586db284096d1b8466b06e042c19fa932efb1b37231bb0b4f04da30. 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/CAN111200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8768e2d8b4d79459ee3cb2171be61313b4d71ab550f9352aef03fde2b61c0b. 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/CAN111200149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0463590651d3bec88cdff20adf3188a6867c402cd05c15db767e47931483caa9. 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/CAN111200150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418a082f4ff7de141ae21114a40c6b4bcdab334ad4b42fd16faa3aeb78231843. 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/CAN111200164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9bde1510b6fdb25ef5c65f747fc101673547d750a31b32b6f66a039d76b1e0. 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/CAN111200165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da7662608151ad0bcccb5d517a1cce72104f1dc47007718b755a48870601818. 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/CAN111200166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cc76baa7369763037e5376720a89af3bafbc5ead39992dd0c9f2e242f3895d. 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/CAN111200167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad55a461bf8e3038299be8197b255f1b674c3fd952bf9415c137ff78773fac3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CAN111200168.
Mass Effect 3: Citadel (Video Game Official Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c61837b07b238e29e99a9252de6f989434e19dba0820d4c9ff6cf11ab8e9124. 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/CAN111300507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fcec06c253bd4f84506c8483459ad22a8f8dcc537fa089495374223278ba15. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CAN111300508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfea147067e3ab060a4446899618b74bc81302406f406ffb584c6ebbbad053d9. 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/CAN111300509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac4a569bccc96e627bc797938e9fa6785c173d900e0dc47e7bc8527a6a61ddd. 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/CAN111300510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb22c6acff8cb576d602e76bb1958271e0108516f7eb2e6ffa5f40bdb7c0e1e. 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/CAN111300511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51c051d2edd2f3d42f7bb17cc5c136195d0cfa25ee4fe778681ef70638cccc6. 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/CAN111300512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3095b96aa64ab2e33dabe6c5d5db96ffbfb5c2770f502a4ecef0761b2cdf5807. 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/CAN111300513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573f4f1f381d9f608cb72c0607658179a3eeb7c1cb79f2a65ec4db6971a214ef. 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/CAN111300514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b82ca73560b52ba49e80a3049a4e0e065a629eb021a62c3f78f5e8d4f35005. 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/CAN111300515.