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 0x4e8ea14a61f1dcc5fa7c91b2c56c0744ea66cc244193d8e59ff4a427a00d3978. 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/8e65e15a-2046-4742-bada-d230b1446015.json and https://artists.proofprofile.net/proofs/artist/8e65e15a-2046-4742-bada-d230b1446015.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 0xefdc01d6b78394cafafda7a98be4d2b3c10df5b72108d1aba45c006e7dd87c57. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKC42200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac9a741ff5c63575d704990d3656adf23c221c295eb35766f39cdb7bd08ebc4. 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/CA5KR1953149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c31676adc9462d56f19d039659525decf18e4849d0973dda38ce1dad5607a20. 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/DEKC42300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8549ec5c66b6fb5e895334bb55de6b2c5d900f3ee4848e212ec576bd5473ac4. 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/DEKC42300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e6c9f84e6351770efb0c98c8bc8bddaf4141dfa8f5cff35218ddeb1d6768ee. 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/DEKC42200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922484b848a5570939386aa6d7048f264de2213a39378c5448c412367763a4da. 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/DEKC42200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffd201600d7b47f49562df1a68fbf1b6972a76b2eb611814f4535f5c3b24eda. 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/CH7812102710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49f017593a4aa7e2f5565f441ba9d84bdd38348840a4b5a43da156ca3ed971e. 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/DEKC42100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5de272474fe63822d024dc774e6baa01396df240923190a19aba8ab4270192. 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/DEGA22103400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55769caee29c0ddbdcd2da26ba3b42d18fe9b3d9d5d5d550ea5efc9be1ea48a. 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/CA5KR2132699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5947293228963d407278e8b4e677c4aedcb23cd38be75f226b1ee1b54af72e36. 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/DEKC42000078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7565cdfd2eec8739fe412cc2b33f4bc9aee992f78206baecbd588839c8d5b1af. 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/QM42K2088521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37838353132c612ba8d44f46d5f213038b74124329af9f28d11658740e74a47f. 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/DEKC42400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81a2a39f7a79acbd306865429424354c299e7bd39016476c68d440d170ec9f9. 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/DEKC42500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c2fa2e6c6306bd69a105595251694deb355b8c9f1c2e1a7180c13bb2b14428. 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/DEGA22103446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41476262cbe9705c182f3bc950dc074378095ac1559607f73e497426c1a7bec9. 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/CA5KR2124192.
Progressive Summer Vol .1 (Compiled by Progstylez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a7ceb0897a389b999092d7530ad36d9a0b0a6fcf2c6d9680dfb15f5dbc449d. 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/DEAR41837674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e1eedc4bd8478df136543d929fa2dfe53f82d973c49e3800d2bf5223ec88ee. 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/DEAR41899717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa81fa7828295ef675826aba39bfbda55ea0801cccd29d439c70f10483d1143. 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/NLRD52024126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bedaa0a836df067c7a2f98df0cba5ef4210c6de40e32a871074e574b84b77f7. 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/NLRD52024101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3a4d507c123062b964066ffa6af015718240b92a3a319077658e9fc8b4aa98. 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/CA5KR1945716.
Clubrotation: Norway Techno (Trance Edition 1)
Goa Kingdom 2022 - the Psychedelic Experience
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485802a6b60de7559e590fa7452b1fd263cf844cfa28b0295fad12f2a1c8d3a8. 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/QZTAZ2591546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a5678ce23ae09b8e2a52adb28e3aa0523c96c64d89fde0b4f557259ce4a7bb. 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/QZTAZ2591547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f31d1e7aabb9fe2b6a7f60f2b900a3a588f3ff2efa871f0b2d2e6b10995c13. 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/QZTAZ2591548.