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 0x4685137913c8c39645f3fe563e5d1d129b94b6c976306da7a5699b3e48d8e3df. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e9f9575-992c-40c1-ad6b-8ba4e2671c4f.json and https://artists.proofprofile.net/proofs/artist/4e9f9575-992c-40c1-ad6b-8ba4e2671c4f.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 0x34eca3c926427e51315b38feed2f514e98df09e30c7a1e7f502d0180764636c3. 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/ATR981208245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ce0394386314a8be0a37ad427574cef759b8b380ffd29522cfdaefa4ff084a. 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/NLS762200547.
Majesty of Hardstyle - The Very Best in Hands Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31475ddab2e66f78edaf3f7fee8bebd6d6c2174beb74ba9c407b3f5840e7b8fa. 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/GBLV61641220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c46c9ed757c0aa457492ce63a58a0842dbc25c65e602fa7640f5bf5e77d3c2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBLV61641232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489337a15e627fadb069f2f3f2f0cbd32fad90abf64521f4e65cd61fe86b3efd. 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/GBLV61641234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28bc4c249ff5cf6292c5db13b93e098067290e59e6e3f9cd8a2a70fb0522d98. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBLV61641240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18a45bb45115fb5065c36f938b7ee1a522bc5e45d3502892f2f08cdbaf4b4b4. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBLV61641226.
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
Gaming Music - Heavy Hardstyle Edition 2023
Ultimate Hardtechno & Schranz Experience, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5baf5e2108c08f98a4e27395ca887cad865a3f1de15f04a48154dfeb3fc655. 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/DEAR41431095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c7619f4947ec3b1f92ae8f3f74cbc7812d21eab154871c27622ec778d29188. 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/DEAR41439039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9a1767f2065989ede290b83a289a2f807938b8740e4150872ca3f19273a17a. 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/DEAR41431094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a044db11f68d9faf5d6ada9ef42c7e956176fe55070b844b9651493b014e940. 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/DEAR41439040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc7c06fa6537c4ade3bb04fe3ca7f61baa8561016ab41cf27bcd41d90c13253. 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/DEAR41519702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320f451242fa4c94f86d8e1fda5639849e69f01d50afe64c158fb2b583382ed0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR9W11409295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5499f0a8ac59940a6be0f2caaf9af09ca7da15ce512372101a3671861b307ef9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR9W11001420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fe8faaa361aee23531ac42f03e300a1fba955197f80c150039651072e38892. 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/FR9W11004565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dd4a265382415f2971a097ea359d9fbfc7b68dec48f112d973f8e4d56060cb. 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/NLH3Q2101135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb0aa45b002a212d365e3b8b169e319aa96eb190d5945bdae6f5ab2a6294eb3. 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/NLH2L2200397.
Hardstyle Force 2023 - Join the Rebellion
Monster Bass 2023 - Hardstyle Car Music Only
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e71422c693b9915b46ddf87599225a46793a43677583506f73c1b2bf42e9f7c. 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/DEAR41852480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc242bd84f58185f8554c9c55342669ce01436d968ddba48b0187d711d10e85ba. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU1578653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799914a2f834c8fa9f565daf99b258304eeaeb0a6454a168e5eb913bc8d9988c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLCK41400038.