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 0xe732402726fad934affb02f970b39c259ab61896abe2fc1d8a95a21ca1a3c533. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ae56aef-fdcc-4610-ad75-9cf063749c99.json and https://artists.proofprofile.net/proofs/artist/1ae56aef-fdcc-4610-ad75-9cf063749c99.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 0x2f4312605876af845d56179a495d1cb86b5f526824b7eeea7e38e5ad22eba69c. 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/NLQS92300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe741286a3b7d48ab6d8cfaaf2172ac3f1d017c80c3f12625c4789189c96a74ff. 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/NLQS92300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2035fff077f20221921312cf7ba319be16b961b44297dd0b41c6c3cda4d07e86. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/NLQS92300042.
Force Of Salvation - Official Masters Of Hardcore Austria 2023 Anthem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09eca625eec4c73585f5324a456a47926195f5f34bb82290ffc0faad4a853a79. 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/NLFL72300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab835e231244624e4f0148b8e577941b20f0ab608352b4634e183aa8896abd3. 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/NLQS92300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f8bd5fd8eaa5b1547ba714101e6726378f8efbbaed23b0efb53e60e47f2b54. 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/NLQS92300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b4a15a753d823fdd3864c75abbe60e77c19a013a7e053fcff4317170bd31fb. 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/NLQS92300057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a362f19eff8946dc980de40d54e3f5dcc154760d2429e473c65b2de10c80ca6. 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/NLQS92300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e315a6c5033b858a45e5291190a5fc6c985c796cd7abce1047962e6ba193b6. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/NLQS92300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d69734a5fbeea82ca86f41c5948ddc1d7a17c499afb1d8a48590ef869930d9. 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/NLQS92300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fb9479a834d2c628ee3806adf95b8256090ef90567b5c245ff56c25b6afed8. 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/NLQS92300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f17c621ec1b06bd2cddb98ee5a150bea6be97679dfdc923bb0170d30b8d245. 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/NLQS92300067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d535a10ebada4e33d4e121cb9d6663cbc36776ac994e77fb0d74324f598ab5. 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/NLQS92300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60f6333bce509b0c80f64eac0eea6d70bf0a0155313818ed6286586ada0061c. 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/NLQS92300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba1273cc8cef99f11675cc68ad889ff4f65bf40ace792b027d45a07f8b701f7. 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/NLQS92300069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c85e3baeda105c552ca2f8dee6de352de701ace1f1840e50886838065dda138. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLFL72500212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae19815b7de7ec8d7ff614d65d9efd20f7e3f21e830ccf8082e43d9b103e5c0e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLQS91900104.
Masters Of Hardcore - Magnum Opus (Chapter XLII)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb593f09ed0575c30838a869dc003f6f13b7dd8ab2f17e91387687f4e485436e7. 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/NLQS92000002.