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 0x3260460792cc211c5aad101d72419fd992f4ff2bd9316b054dbae1aa3b569f2d. 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/5063c452-38eb-4fff-8a7a-9dd5f1e817bf.json and https://artists.proofprofile.net/proofs/artist/5063c452-38eb-4fff-8a7a-9dd5f1e817bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Starlight (Incl. Flo Mrzdk & Juliet Sikora Remix)
The Last Song (Incl. Juliet Sikora Remix)
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 0xc504b9b27e447df15ef950a37bf7c1fb0367a8fdaf81995162e675b32f74802d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEW872304126.
The Last Song - Juliet Sikora Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f772bfbf1c6ec73ff06e008a8371f2a22889b131341922a0658e5518d1970c. 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/DEW872304120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace8e30409357392b50b37c8ba1dd26a88b72f37a4c05f6be1581c7b33e622ee. 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/UKU332200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9c668c59b05f6ceb6f2b056fc856e86caa193ac9837e604874ded5e87cdf0c. 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/GBJAJ2200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcb58b5e78a9ac6e3d5a3c1adf548b449400eb84a5892e308a7582d0add9eab. 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/ITKG01900093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3595977f30c5b62d876b48cd3de3089922cb6e0dc7dfd1f94ecb8623bf87b7c8. 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/DECL81500186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eca02fa72aa4126113e4a2c94c1872524170095b96d952236d439bd54a1d90d. 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/DECL81300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042df24fb0902a2f2653182ffae5034a77dd60062083073e67fd7c886451d69c. 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/DECL81300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e7bc528d01e4f220a8184553818e2557d516b0da6c477a746365bfcfe9ab29. 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/DECL81300062.
The Night Has Come (Juliet Sikora Remix)
The Night Has Come - Juliet Sikora Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2e8d25d4e374bf8fd1dd7b28c97b128b51892177fb407b4adebced5ed582b8. 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/CA7C62401210.
Come on Now (Set It Off) [Tony Romera Remix]
Come on Now (Set It Off) - Tony Romera Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aa19bebfeb7176127ee7144646e57dfc1723d87fb33b941d8f157d6ec98654. 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/DEW872501907.
Armada Deep House Selection, Vol. 3 (The Finest Deep House Tunes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce049a0ca93cccb04db8cdd6100be6103292c834cfa37291870e49e1706c282. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLF711402585.
Armada Deep House Selection, Vol. 8 (The Finest Deep House Tunes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d0275643f208a8d14ceb978ab8e261618c5dd1179be0813ed0c2975c1c6ac5. 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/NLF711503727.