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 0xe0a392c51d00db01731a2b1ac29e6cf6d6ea4c166b51999cbde211ce8e98bcd4. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/285bcecf-24e9-4708-aa33-ae563167e53f.json and https://artists.proofprofile.net/proofs/artist/285bcecf-24e9-4708-aa33-ae563167e53f.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 0x05af708640a8f799185dfd90f38d81b01218a534dab91f4927b9691bbdea21d4. 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/NLRD51400591.
North Sea - Nature Untamed (Feature Film & TV Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408f2d8689d74f565a9a3229ffed6aea70950c1801c583f7fbbf2a3ea67019ab. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/NLRD51400564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0b2670a7e7b04912f54fbcb51eb59bd3724fbdb45094226cc27b35daa265b7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLRD51400565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abf26b80107c95db24ac37f443531947393d1073ea3d0d6c83ca57e779e43f1. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/NLRD51400566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bce1fadbd470a6fa46dc03f38aea1f9933eaa4dd94750ebf81d5c4bc0ff7069. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/NLRD51400567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffc26bcfcda8f037951ba4c467215d37222bb1e3bfff84c6b17bd369f6cb0b7. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/NLRD51400568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c561755e15094066e911b4ab719eb6790ce6c9f67cf695670a4672cbe30cb0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLRD51400569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9486fceae1469d74d570757898fd2c9f6d00b3fd350c76996a0d337ac94bceb8. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NLRD51400570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc85ad1b3c148b20d5ce31bc56e94efae7e23ae9486268da13a02d9ec5a07c81. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLRD51400571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3e464a9f5a36ecca86ff680cd1098581f13fdc1aae52512c35168ef3616458. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLRD51400572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a242a88cd7081b48c94fdc6a44cddc0770f945bc4c5b642c7f0b9115cfa13c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLRD51400573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99c5dd1e2bde4d2667671b81043a195cd763444b66e14c76c034cd66b4a8db7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLRD51400574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cf542c93fd6719d7be4dc3f8b8a6efb4e90e6bc0ba713d4464cd00e38d01f5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLRD51400575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252bf33eb6521c3ca31e8483824c8922726afd49dd6b7ec0d2253874f393a990. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/NLRD51400576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634785c1f9d296277c180eb235d6323754668ef3db8ccd2bf55515335d701137. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/NLRD51400577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08091cb3770cfb3175feda65b394c6bb1ea9d81fd42b1eab95be00212acb6331. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLRD51400578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86436868d23fa74eecba7fdbe6acec74b524a1609fb85d55acf43175cdebf4a1. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NLRD51400579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bbebb4f89576219549bad6ea648d18b8f48960c579f08a1658cecabefa2e94. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLRD51400580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b8e2c2ca9ecde965994189fdb09af1fad087b5c5cce26c5f3e731bc50ce182. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NLRD51400581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7147099137f07539547f8fd5e0afb4fa9a02ca233eebdf2649d145485b78de. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/NLRD51400582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc42e8d73e26ddff7a6de8cc4645471429ff0517644315dfa4957f06fb1dbbb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLRD51400583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364e4c8d23065236ed4ea0027ecf44feab3e6c310ffa3e02480537cc936d7e67. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLRD51400585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb0ef702646690397b766691b0b3afc6b09c7e058ec33642bdc7c8684464280. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NLRD51400584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1a3ee96bd5c920fd7c78be7e67a28db91f135eb32ec6b8eb9b7bc8a563dfe9. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/NLRD51400586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dbb2f6a56609be290c0a8a1f5675cb18099b73dc555419fd2128f28831a5fd. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/NLRD51400587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff88412607662490ebfb84d8903957645422353d6f0f915d072b229f5255b004. 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/NLRD51400588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723d4fd1a5a06dc60fb553530e5e2e3e010c79ef7c696407f815bc644e06fca6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLRD51400589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81474e2f897da711d5ad19caccdd4e85eae45fec1b601e0044e37e4870ff3ac. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLRD51400590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05af708640a8f799185dfd90f38d81b01218a534dab91f4927b9691bbdea21d4. 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/NLRD51400591.
Plankton Animationem Variation - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68182d759899f30a08fbb319ddee8fdea437f69ecc138f86c254d5d18dccc694. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLRD51400592.
Pleuronectiformes Variation - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98abee5a7f3c5cbb35ac8767d0c7e9333fb694cbbc178474a8abd29e9bf872de. 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/NLRD51400593.
North Sea Nature Untamed TV-Series Additional Tracks
Harlem Nocturne for Bassoon, Double Bass, Hammond Organ and Drums (arr. Marijn van Prooijen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2632aa7d10a8c5290c3e97ae08149ab9450acdcf1bc2e0da5d76d0220d595fb0. 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/NLY331208427.