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 0x5b38732e72e47d399f2aa2846d16a83e0041199dacc5fd6a238c8a48090fb70a. 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/bf959b70-bcbc-4c9c-a543-beeb3664716f.json and https://artists.proofprofile.net/proofs/artist/bf959b70-bcbc-4c9c-a543-beeb3664716f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x68ab56748dcbb226cec6bfe927a8cf47e26939a74605e4b83f681d7f2daf0cee. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LE2315411 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fcac7e97fc5b129979ccbe7eaafe08000f137c463f2518b7c034596f728f7c. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CHUM72300154 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9988727e67680ef2ce048cd767b627fc05dc3c893b9418708efbf29a210b07. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRNAR2351692 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7543510cc2d2c835a76261e54c6a81d409c551cc51a73ae6d198d588dbde6a48. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLZJ1984271 — a six-check JSON result.
A Better Day (feat. J.O.Y & Ashley Alisha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313e8382f597e6848f2647aa7bfc0c5fd85b9137dad4f63a55e9a432271306db. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRNAR2371097 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbb6710fa11d18460b884d8a232d83b85c0aecd4e28ca6465e8bce3b23d405a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRMIM2365725 — a six-check JSON result.
A Better Day (feat. J.O.Y & Ashley Alisha) - Sped up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913f8a126c5f3a332e62ca9d9ca1989cff30a2608f39c01e08ed27e23fe748a2. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRNAR2371099 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635a2e3a7ad49ef5c72eb6ac83db5b2d37ac2170e2b3335952617237f7217f31. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRMIM2365730 — a six-check JSON result.
Stupid (feat. Ashley Alisha & J.O.Y) - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e97a084733bc7b31c56e43fb0a9735d68aaf804dc1d09cb39cc28bad5c9f9ac. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRNAR2351694 — a six-check JSON result.
A Better Day (feat. J.O.Y & Ashley Alisha) - Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8a2722acc79a885635d5021daf1e60cebaeb4ce265c8a25070179d4cd6057e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRNAR2371101 — a six-check JSON result.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45817448ed3565d73d2d25972d4882dc2a999c25ed14d71e176318c2ae6dfb6. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITM2J2200010 — a six-check JSON result.
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 0xd45817448ed3565d73d2d25972d4882dc2a999c25ed14d71e176318c2ae6dfb6. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITM2J2200010 — a six-check JSON result.
What Is Love (feat. J.O.Y & Ashley Alisha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c89112d4d75d4af5435e4153813f44e6f25be097bec93f3377c91d7de2446ec. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRMM02309929 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180245318157a6ad3538f616855a2cc14f6a7702565dde04f86749b7b48562ec. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRNAR2207015 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7c2900e0c1727d701a7bf0191dabf4c93efd8907cb73da2f4fe4de156f798e. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRMIM2301476 — a six-check JSON result.