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 0xe9488d3a252f2f5c7813dff1ea3beeb14b1f26112bd32d7dd9920791d861e5e5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d34b7cf2-3448-4e65-bdb3-87d71b241435.json and https://artists.proofprofile.net/proofs/artist/d34b7cf2-3448-4e65-bdb3-87d71b241435.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 0x783814c64626842cd9f2a10e01f4d03ed78dff583f5e64a04965ac6b2de5e597. 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/NLZ542400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac33d79dee98e126f443843008761540e7635ee7bb77289df2d20937524e08e. 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/NL1ZN2402753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88867360aaefdd5f7495607ef4db03d0a9de13ca522e86dc82126fa565fd74e5. 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/NL9KQ2390150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc609f9bc723bff29655fb49037b9bb502f6f63e9fbfb85f5e1f2149c1efdc7c7. 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/NL1DT2300158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb4a0e99814a6c5268fce990ce9c1393710a512049ad9da885eaf837f543dac. 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/QZAKB2290399.
Crossfit 2021: The Best Music for Your Workout
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Happy Music 2025: Best Happy Music - Feeling Good - Feeling Great - Fun Music - Funny Moments - Good Vibes by Hoop Records
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Summer Hits 2025 : The Best Summer Hits 2025 - Fun Music - Happy Hits - Good Vibes - Happy Beats - Happy Vibes - Positive Vibes - Feeling Good - Summer Party - Happy Music by Hoop Record
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e63bc43691cac8a2a9e497619873de14d38dbbab1e10ef316b2520b0f055ec2. 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/ITM2J2400092.
Dance Hits 2025: The Best Dance and Pop Hits to Feel Good by Hoop Records
Summer Music 2025 : The Best Summer Hits 2025 - Fun Music - Good Vibes - Happy Beats - Positive Vibes - Happy Vibes - Feeling Good - Happy Hits- Summer Party - Happy Music by Hoop Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7f0d70a32a9bb3ddb9232cf89ae95d329cbe08c3a3fd396f0cbb04b29d4fd5. 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/ITM2J2400095.
Tiktok Music 2025: The Best Tiktok Music - Tiktok Hit - Social Music - Viral Hit by Hoop Records
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