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 0x3c7759aab32fe68b5378b3ec07561babe35b9e062bdea9e54f2281de99abfa85. 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/ba2554bf-a99b-4d3f-9e5b-0abf728f06e7.json and https://artists.proofprofile.net/proofs/artist/ba2554bf-a99b-4d3f-9e5b-0abf728f06e7.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa3f9283dcbcbd2e8e51bdc7b4856e113fb88a4b26ba4b610b74342e97d46e4. 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/QM4TW2236158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0edf4bf24e5a617163ca1ae4cfe9cba57ce81eb228420df1e0d7e3a3b9d4c149. 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/NLQ8D2000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bc52695b8ebbd295702e44a6e291f95b26ad61c6d6e73894ca57d83487a321. 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/NLT2H2301122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd28c6453e2571a11570b2945a2b96cfeb440c8d6e049b0fbf2eca14212bc4f. 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/USUS12200894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2067c2d04699bea363a883856febac4cdeabc26f39b2d13cddf37745a4c72611. 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/QZHN62132231.
Put Your Head On My Shoulder (feat. Laurell) [Deep Mix]
Put Your Head On My Shoulder (feat. Laurell) - Deep Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2f0bf7b7011e163c8aedae6ff0f731a711b89bf34ba653dc93571403c11278. 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/USUS12100108.
Put Your Head On My Shoulder (feat. Laurell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1323d139224d889cd838bd3c5104212780673a75019a04ed2460d1efe92e52. 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/USUS12000804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02955853a6e60a7909d6d1d6cd654ec41f0e9585755a495ad478b7d667d74bce. 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/NLQ8D2000286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a19ec07556cf4a82537665ed754a2592e489c2d0ba9ffb0ea1e0e4e7217c4c. 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/NLQ8D1900304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651b3490ab826a39a5e51190c4bd7a83dbd516422860a035514ede134b2ac834. 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/GBPQS2400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d99ffa4a3e8a5430dd6ee55370d4a84ea8918d3ddf37cf6d4f155cee76e8119. 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/NLQ8D2101533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926de833a31b500216acf9db0f27490748d67e5c65b600b6cc67e49140cbe440. 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/NLQ8D2000648.