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 0x1643eba6ec16fd0310c8b1dbc9d6c1b3943435ff57aa90998086f1931303530c. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2f77fb1-20c6-4c49-9cfb-1b41a27f843e.json and https://artists.proofprofile.net/proofs/artist/a2f77fb1-20c6-4c49-9cfb-1b41a27f843e.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 0xb737681e3c88a16ee583031873e59367b74d9deb66a8bbd48979ae5438e42e60. 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/CA5KR2428101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac366bdc5cf2cfd65854331d68cba3b8bc3b870a026a80f638de0e4b57ce393. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/US83Z2319363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69da584afbd7572cc9231e0bc32cf166566f048b1f7ee7909c6e89d0de442f97. 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/CA5KR2179213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b915bf293cd44125a4affbb7fb91d61a7de363ac3ca2129e57e818c5d6440c. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/CA5KR2149733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff06fde4664a6673cedb90e439aa195a297e2aa5470619d4c309ef11411762d. 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/ITB842200211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e2a60ba4815a6cea90a77a87d1878322c04a8743785727d68023d76cb54cb5. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ITB842200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9742ec58a7998b902572a975613c8385ee5f5de3d04487838a501255248031. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ITB842200217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136604ecb09119c866c5cabe8a461639e4ce10bb713a4dcb52c74411f5404916. 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/ITB842200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f570cd35fe7514a73cd9d9b8489dd46f72d1aef72db1748fa1cded6d025d542. 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/ITB842200223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d4c35bd6d27f2028fc2d14a1219bbb5f992499b5b8e3cc7fb67c6abcecba52. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ITB842200226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eff122c755a9bf21a02b723071b95f00fbeed3d2902db0098c349fba67fd67b. 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/ITB842200232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa902f0509c4592df68f8c6a9d391ac538acafc804ba590e9da9e62b1237542c9. 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/ITB842200238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8d71cfc36cd617d3a46e93c6329fe941c7740157cd88d3868f9d38c812063e. 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/ITB842200241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9aa43a7bf0647a58a052d0fbf8b762b48f8d30692fcf68df8b9841ef31ecb23. 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/ITB842200253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe0317375fdd88700810779650ffedc996ee8478215446c2a8eb9d9087987a2. 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/CA5KR2159079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1822fed54a71bb353dc9161cd80c315e58560dead2b85e12bfc7ad98efab91d. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CA5KR2159080.
XenoRave 1 - Best of Hard House & Hard Techno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bbe52de4e7441ffdf4e83bb5703aad7701ad382440f1efef852dae3fd459a9. 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/US83Z2417463.