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 0x0d988f68a44abb01296c384731c3310192466d5df8c4f56721c5031d7a49b2cb. 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/79e31fea-8326-4576-b14b-9eba84b33026.json and https://artists.proofprofile.net/proofs/artist/79e31fea-8326-4576-b14b-9eba84b33026.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 0xee5ac3df26fa31a6fbba5b5a677994c636c5e7bfa120243391bc9a29a1c21a98. 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/USQX92206167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff5498797b52bc2203d6ff45a9ee66651b5e48a83cfda437c0fd0aea936d150. 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/USQX92206165.
Don't Wake Me Up (feat. Scouting For Girls & TILI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643243b0abcf7fe02b1f7464eb61256fe0864f0d0ae41cd46aca9cf86f76e3b3. 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/USQX92206163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24613198c9e3b5505d4d788126f5efe916af37b05e813480e194872b2ba5be84. 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/USQX92206162.
A Christmas Fairytale (Solo Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9baf09447664db4bf34b8e766e257f343d793f498f8a064fdf7d88a33a4dd41. 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/USQX92205193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b69669882f135d2a79e9c835d80585beeeb6763d5664dd002cd69cd004343c. 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/USQX92105880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d71473d2568086a1ed227db7a50de60832998aaa794cfde562a237e8928862. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USQX92105879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7850422563d4f385b96265719edbba56360bc1181a9fefcb69abfe5cc89f2ea3. 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/USQX92105878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c68aa7cee540bc448ef45f7b70d237b0ab2538f890449d5461c604001d83d4. 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/USQX92105877.
Christmas by Candlelight (Solo Piano Version)
Christmas by Candlelight - Solo Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca97f45991466108f13c59bc1cbb16f4de3625bd8d71da9b228197f1c1268e19. 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/USQX92105071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a399e4c064075668e9508d81433bc9679a9cb5a56e7647cff021b9308fb030. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USQX92100926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3740e28b35712990f5dcac3fd2379580cf86b2ead3b66c57f34340e18c58e84f. 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/USQX92100925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff69c5ba15501045aed821596580a111fa2a89d5e61f670841fba7b1f06462a8. 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/USQX92100924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acd51af0a6e77d5476abe9cd10484c7132258ff90b558943b8aad928c23aa62. 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/USQX92100923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aaf3b039963713d80e0e0650dbaeeb2803ee8d1985496322604ad3be79cb67e. 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/USQX92005123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7744b6da0ffa35310c65aedbb0d36b6f75f0a3112c07474897e8ef6465a6d6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USQX92005122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9835622b36830e725cd50cd6951b469dfa82ce09e2f5f59b09cdea3f678db5d. 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/USQX92005121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec02f7db3b115a772dbb0bec636191c197991ad96e8b72530842201d09dfc10. 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/USQX92005120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580a99ead8b8e64119dc6f97cae8f237dbb6386cd2fb936d364658372d10be2e. 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/USQX92005119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9217e1a313354a6bf4fea6b16aa0a4d70b811d63ee73b2500ea7312267c76c28. 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/USQX92005118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe836644cc782e8308166bbba270d2653a39892a12c4585c2611ef51554c00c5b. 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/USQX92005511.
Mozart Variation (Arr. for Violin & Piano after Eine kleine Nachtmusik, K. 525 by Wide Eyed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c21eefe984854ab3d108e1abc4772dbff9360e63259dcc11ec728b3c8a4dd8d. 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/DEE862102071.