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 0x617d77b43f998382be6fac36c101ce5aac2eecce76ed61f0971a933ca77bb1db. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/616ef19f-261d-41f5-a3c3-69d6327a0bdf.json and https://artists.proofprofile.net/proofs/artist/616ef19f-261d-41f5-a3c3-69d6327a0bdf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Distress of Hard Techno & Schranz, Vol. 4
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 0x3f6e37fcce1479a023ed1e626a20ba0288101c2c2c631b5b79caa95a34892945. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/DEAR41246540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2fadeaa61e64e2ebeec14e4112c806bdf1e049cbc2b7fedd7472663e13c9505. 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/NLH2L1800239.
Toxicator (Official Toxicator 2018 Anthem) - Radio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061a37c1a3c31a7cf6793ae9518d75298a0dd23182cfeb1570c04d21f634ebb6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLFL71800690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb731efd467513ab929cf8a3ab3c6545e884961efdca6a0c9ba237f652761adeb. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/NLFL71800699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebc73548c9a04600f9e71c5b70827931dc83e3e683d87ac4a9d22e362fae958. 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/NLFL71800694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5e6ccd8b192305d2a54a0b5c83113a5b8fb614840e51abc5efe1ff496e4753. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLFL71800307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3df7f78f79bac850a4a24da9de8198146fb9115b5e090c4ff1dd6ab73040ff. 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/NLFL71800173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8dd98f60099019d36a62cbedccc8f6b86a937f2c6fb08ee1c7c5180d0154e2. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLH2L1800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cb7988b61bae8a71ef54f26350f7854181de4263dd9b71dd9443bd9256e336. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLH3Q1800210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622bbc2a80d79942138e1201c1f17ef3010611a3fdb302ae62fdfd490d3b3471. 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/NLH2L1800090.
Hardtechno Is Not for Babies (The 2023 Remixes)
Hardtechno Is Not for Babies - B.UNQ! Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3021d1aa62766e5d284db4ac4926c54342c7b6c2571727918b0b836c8cc3b4b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEH742330800.
Hardtechno Is Not for Babies - Minupren Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ab09b6fb1ef1988b62379c97d4332041e49c2a34d7041f97e3a974d7ea3bd3. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/DEH742330808.
Hardtechno Is Not for Babies - TRIPTYKH Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0612f0dab9fb750199ea79db3201f492d119fe6b678897e1fe3c5013066ecfc. 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/DEH742330813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0579eafa798c74f7a268e62fa6a30d8c4a3dc39a11ff7c4b6ae264bb39532c26. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEAR41219760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf97d50b20b81528a23b4baab43606c60d330909a79667b77c195a90dac1693a. 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/GBKQU2430564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5250f861c298dc8ced894a326d514ae6846edf170ed11911cc9a2b60019535e1. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DEAR42364943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695592d10f50cc5d1ccf56ade55d44c42e10e476316131a501eba0aa14615f90. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEAR42386884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17eca1d377030f16efac9c070ee28ce687677e01fcf56730eb6b924eb12ef30. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/DEH742219524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42047eab54e3fa4808ba7f18d8a2e4d7a86c3f00883150c0450913e0e229ddc3. 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/NLCK41059834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc5714097258ba5325732b7d27659c0eb5ef73d77903068d9f3ee3dabd89670. 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/NLCK41059836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c8efb70879a1706a496a38b9f7bd3e3925d9dfbbc6c6ec2662eec45081dcd2. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/NLCK41050603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556692b21866317c3ea2325f04e678d8717e3a24817defe455f54d5bfcb0d0d4. 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/NLCK42415133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37d36f8b27bc5762bf886e2e081ffc827c56c1c37f04d585ba629a967530d8c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLCK42415134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2002097195145684d6d425ab47b626454e0451d076f339da6ca2fd54a8941474. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/NLCK42415138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18654f855090e60dd2ed88b66b720a08ca4b97ab2eba723157bd394761858803. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/NLCK42415140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a25a2363800c952fb87d0d7ea76a0066815b58660dc427c02caccb1ec8d69d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLCK42415141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25dc5d6095ad07a06ead7e01ca75a47f5b0951d0c5e68d8cd8a3bacca9753ed5. 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/NLCK42415142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4a51dfde9793b7fb39ecd0e9cd06ef8b969ce36226fcf5b5fd8e52ae4b38fa. 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/DEAR41244029.
Hardtechno Is Not a Crime - Greg Notill Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8d8861604b977e7a7c7d1095de0bbbf869d41fd92bbe2a898dca239dc99f26. 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/DEAR41240384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07c8bdedb6429684175fc6705e69c00af18fb3517069d7cf8fde8c447551f47. 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/DEAR41227908.
Headnoise 2k22: Even Harder, Louder & Faster
Best of Contempt Music Production Vol. 3
X-plosive Resurrection - Hardtechno Style