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 0x056eea59c2ec31656d2f01f82edff53bc801b42d6f8739ba90453a03fb7aaa1e. 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/2131467f-0616-491b-b88c-640566b92132.json and https://artists.proofprofile.net/proofs/artist/2131467f-0616-491b-b88c-640566b92132.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 0x0517aece928a656f1c1bbd6640743a936c8869cb36d885c8b714e79bea7b8706. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NOEPO1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9788905e494fc57663cb734953f68306d4fe02f8195e2483923b43d6cc2dca2e. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEVF11700249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fc38c9c8feabec0f2713b45d2246a1211602e8036d4570fdebfe71e707703a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEVF11800338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114070417d40b9bdb4672ee9e990954338355d49148b64c1dd06b2f09e7ecd1e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SE5751875499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bc903c5d4ef0f5ee7e712149a0ac77b3a236456aba4ee8c19ce3d909c04a47. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/SE5BU1947364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ceca11d84bc55ff137572821d6ed9fc7c2464d2b6d92703f8370f4e9a106df. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE5BU1947363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de6be8d55de5589494674a94ecd6a70fcde1d534ad47432d105d4c4ae5c35a0. 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/GBKPL2087919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928140ae186f39192ae6db539fe9caf9d4d240f5d6eda92d22423b403169c898. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/GBKPL2006220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cd91c8b54245e9cd6e84d332f47d419bcfb5e335718310c9094283f9914ef4. 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/GBKPL2006221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920ec1c0c28ef89cf3bf9d41365f3ac8feae3e058413fe4d059adfa531769702. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBKPL2006219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7099e8882924ab93eea837a2241de9f7087925e27ede6abba0749ada56b7b609. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ITM2J2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8954c66125da1fb9069b18fbc927f80baa6a7103328974e96d58db75ef7307. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/NOEPO2000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd877630db1695a01fae57dba403de1d3a63fb158d75ea1e40f06c7a4e2b7dff. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/NOEPO2200012.
Chillout Lounge 2024: The Best Chillout Lounge Music - Chill Music - Soft House - Pop Music - Tropical House - Deep House - Chillout Songs - Chill Vibes - Cocktail Music by Hoop Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7099e8882924ab93eea837a2241de9f7087925e27ede6abba0749ada56b7b609. 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/ITM2J2200021.
Lounge Chill Music 2023 - The Best Lounge Music - Chill Music - Soft House - Pop Music - Tropical House - Deep House - Chillout Songs - Chill Vibes - Cocktail Music by Hoop Records
Lounge Music 2024 : The Best Lounge Music - Chill Music - Soft House - Pop Music - Tropical House - Deep House - Chillout Songs - Chill Vibes - Cocktail Music by Hoop Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7099e8882924ab93eea837a2241de9f7087925e27ede6abba0749ada56b7b609. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ITM2J2200021.
Coffee Lounge Music 2024 : The Best Coffee Lounge Album - Happy Hour Songs - Lounge Chill Music - Sunset Chill - Bar Music - Lounge Bar - Restaurant Music - Chill Music - Aperitif Music.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7099e8882924ab93eea837a2241de9f7087925e27ede6abba0749ada56b7b609. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/ITM2J2200021.
Morning Coffee 2022: The Best Music for Your Good Morning by Hoop Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7099e8882924ab93eea837a2241de9f7087925e27ede6abba0749ada56b7b609. 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/ITM2J2200021.