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 0x98bf3b94e992b76b32b15abcf6a7d23ca8ddf8da8058534088e87fe7690c3618. 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/ce997a55-bfbf-4dca-96fb-230f8246a6ea.json and https://artists.proofprofile.net/proofs/artist/ce997a55-bfbf-4dca-96fb-230f8246a6ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fuck It (I Don't Want You Back) (Dan Winter Remix)
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 0xfd9961752d20e2bffea5d35cdea5b9ad1020737452cba0192ff22bde639f031a. 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/DET191511199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba27fc15b23c49b4b836d5250ba419c2a5d8090314ff8d620fdd1f72d428265c. 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/DEY372302810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477f0d0f1f9de2c2ade821b206d1a1b8e3606d6f04ba0d096c25cd4f4f479fc1. 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/DEY372202798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37a1c74f3485e6c6dea073d179a97d1ecd1fe23209b2eb781569fa15416cf17. 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/DEY372202789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6c656852218bd6b56476b959a93395867f687d33688d8b4e0255062415f6e7. 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/DEY372402926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20c19b8e6c2fe29c5d71740ccac4c5b192987447ef7aea8d4fee25e2378a4ae. 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/DEY372402927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3c05e7bb3fb464cd147a74b0aea31dd3c87ce5619e5422b42def9cfaa8d947. 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/DEY372402928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74385d5d85282c6af8ef4d2cf195ae7c5cde51b59d4801fe114339a116deb6b. 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/DEY372402922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86caa86ae5248874d3a67b9915c7cb68482a38c8a867160046cf680796c73d6b. 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/DEY202400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3c7c3fced7f65e2ca3c7ae1c7356a68e076f758d5060d4efbba6a07ce22eac. 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/DEY372402929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c065cf613ae8441bc831ae5ec2cc1cee652713c183824547e053b6803d52b17. 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/DEY202400141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37a1c74f3485e6c6dea073d179a97d1ecd1fe23209b2eb781569fa15416cf17. 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/DEY372202789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fda08134a31a4e2b9325210a4c97ff34b6b9cb5146acdacb68dd085fe911fb. 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/DEY372302879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898a451430eb4036098d545d42ca01c3f9716d8f02185d0bf9e1a245b12577d7. 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/DET191511927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c71d54ff36913202ef2bdeb17cf8e1432ecda6d4b8007726ce16ad9c68d2aa1. 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/DEY372402930.
Nicht mehr weinen - Talstrasse 3-5 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf532e2016eff08dc55169dec4e296a1cc50773c31379c3e24fba0cba32c0c823. 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/DEY372402916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a3888f09a968cb03ade8f59b29e557b975975e65c78a3a3831f56b54644b26. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEY372402931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e92fb206e166aa65865a2a555538d48cdca17ce28f1ffe856f41c56ce1e1664. 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/DEZ522100514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b29d53630b059f830ba7e0a2220c21a686b5f6ed8911cc661b4a61f2898594c. 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/DEY372402934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c72ce14226e38d3e3225d5669f47b109768ba76ade55b65ff41c0844b87fb3e. 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/DEY372402935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc48ad38d2da42696f35054f2b5a8b9dc2b0a9c9d3f6b228d3854dabafa7ea30. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEY372402936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab433c8dfea564f516d37adf913c95dbeb1f877f382458cc8d0bf8ce96d26e8. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEY372402938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427f0e33312183a01094c62a89db7cd136a495b38eb0f2ff834af5e87aecf5bf. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEY372402939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d14d2893d246c7759bff617280a7898394690b5b887d9867d2fa6fd611bbe5. 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/DEY372202717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ebe47793fcd592a6e14ea47b0a22bff58636295fdb0a9a492b431f0de3d0d8. 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/DEY372102637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa289cb271d8d58ebc0e5de40fa69c252ef57d2426bcaa9f2df5d75a764b204. 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/DEY372402940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105192003d1ba869747ceb3fb7f0aef3389d215c537e96be6e10466e027c07dc. 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/DEY372402941.
Dub Tunes (Special Dub House Full-Lenght Tracks)