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 0x6553101939236196c744fa51504929383e9638780d6a96db317c51a7bad0f837. 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/c67b6a23-4051-4a7a-bc67-aee168344b98.json and https://artists.proofprofile.net/proofs/artist/c67b6a23-4051-4a7a-bc67-aee168344b98.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 0x9e0869a320e5fe8c75a43e731678b357795620295f7d7d7910ff1b1c4ae9a3d4. 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/QZTB92209728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edb9553e934f4974a1d6bc12f58d9548dd1b02ad31a5598c82f4b85924a1217. 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/QZTAT2103504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8b4c6fa33b2a3bc800dff0a9c729b11c413a87f492d707d9cac12598c7c343. 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/CH7812424947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e6e7872dafeeb9c91060783f68f928ba8a86ae5e10237df6dc73a156baab51. 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/DEUM72308812.
Wackelkontakt (HBz x Luca-Dante Spadafora Remix)
Wackelkontakt - HBz x Luca-Dante Spadafora Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d46ea171b73524d2ff209056d0a4b0943171f4b01618472b45ed93a2890006. 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/DEW242500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f18b81f7b69ce9b5980e747c3e8cbff36a3f90f4d05f22ac32220c7d47079de. 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/DEW242400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759a62064b803dacd1707c9244925b58a97426629c46ec10f38a9ee0504c50c. 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/CH7812350872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5dfbd43b68c43fbc39c7788ff9fce8d5aa6317a3878a87d772a3dcf712138f. 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/DECE72302154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759a62064b803dacd1707c9244925b58a97426629c46ec10f38a9ee0504c50c. 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/CH7812350872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759a62064b803dacd1707c9244925b58a97426629c46ec10f38a9ee0504c50c. 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/CH7812350872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759a62064b803dacd1707c9244925b58a97426629c46ec10f38a9ee0504c50c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH7812350872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5dfbd43b68c43fbc39c7788ff9fce8d5aa6317a3878a87d772a3dcf712138f. 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/DECE72302154.
Safe and Sound - Niklas Dee & Luca-Dante Spadafora Remix
Safe and Sound (Niklas Dee & Luca-Dante Spadafora Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaaa9d48743c2752ac525782cce1476540e37e070c058f2aaf177c2a4adc2e1. 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/DEN062300519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b88d7b7212a6c4b2470fecd8fc914aabf12b17aef39c672466c75f02bafa35. 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/DEPI82416749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b3a51739c894feaba171dbfd7f0c14da1255ce6ac401496daf91eecf26385c. 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/DECE72400453.
Ballermann Hits Party 2024 (XXL Fan Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3408dfecf755533e0df2eabfe5e4e9c411d0e8c012347f2e8a4f7953a428274b. 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/DEUM72400484.