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 0xfe481124f18107ba7a9450ccd1df5cf4e31c94b58cc3d6d25be03b8a18c96c6f. 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/1f930063-c34f-4d73-95b8-bf0f9ce48541.json and https://artists.proofprofile.net/proofs/artist/1f930063-c34f-4d73-95b8-bf0f9ce48541.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 0x095f302de51bbe9448d6e92ebf232e6f720181f703ec349d98e6b1120afb6d6f. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/NLRD52203739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364a5313efbc8c4d790e113c0bcd5f037f4c954d48d8ade37d7f4fa282aa4531. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/CA5KR2396355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2f250a491f438cd7f5b82cfb3c5e92957c2639d4774308346e45f6f7074ded. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USNRS2343191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d1110251edb3fd8d6bd0738617df29c757d8f2d12e95048008b554c2414795. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/NLF712407068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09225c52be12b1a06b45854355628ac4168a516b57f309ae72cce0377886e44. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/NLF712407070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8798ae6c6e97eaef0a63549ae48897a2336213168c3bf3ad5007b43fc1023016. 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/GBLV62414232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba5d3f226f259fdb32cfb126268bbb9b1debe47325546d827aaa01e669b8408. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/GBPQS2500115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959912672431829cb07cdbce15c5416713f7616425f52d5cb108a5a4d80c078d. 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/GBPQS2400142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bf4fa651ca23a652f0aaab0dc6452f0159051ee9f2d4c05fa8ce8f2988d65c. 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/NL8RL2331811.
Hayabusa - Draxx (ITA) & cvmpanile Remix
Hayabusa [Draxx (ITA) & cvmpanile Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0623a535062e685ab3e670e155a6becc54c1817469543b85e2d5bfc9f0dd911b. 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/DEXO82211608.
She's In The Club (feat. Asal) - Draxx Remix
She's In The Club (feat. Asal) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e497bc311f7411fd6b737a2e71529a74cda748590c2d9e947de980688ee086a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBARL2401024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bf4fa651ca23a652f0aaab0dc6452f0159051ee9f2d4c05fa8ce8f2988d65c. 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/NL8RL2331811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ed432e32b6e60eaf50731dc2a9ee6f619704537ab4ca83f653a71d4ad1d7ec. 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/GBPQS2300269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a49d56bf59e05489a66b335d1f28f700e6ede7f36de543c03eaae4e233aa6b. 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/TCAHZ2415112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ed432e32b6e60eaf50731dc2a9ee6f619704537ab4ca83f653a71d4ad1d7ec. 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/GBPQS2300269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fa78603f86c30c9e7b74e8cccf12861ee8cc48934d007bd8609addf877f6ed. 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/USUS12400857.