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 0x2c15095e97a2ca94fb8b664581fea39d1b924e62e64c72efe8dfab621b63e3cf. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40e2ccd5-4cb5-447c-8206-8c58f799dc61.json and https://artists.proofprofile.net/proofs/artist/40e2ccd5-4cb5-447c-8206-8c58f799dc61.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 0xbff0e0a43778584f6a40cfc4f2ad65a18a649000ce3c75b4119e712ef3d1b7cd. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:46:35Z), 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/CA5KR0033547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fabf86fe8c3d1170ab6daff67a2d1f54ea886fdfd7fe0f3cc562ac855479f2e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CA5KR2204508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93be0e7efb7fae512510780911b3367ab388a4d36679b72c2533e4917960211. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USA2P2232749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5733c9961ccc0d4625ba1dfb9770efccc2fd358eeb1f11a4f9e9c74fb3a42f06. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/AUQ9D2402394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8774c276f5a1087b8422021e5ac176dc2cbda3785c52f951e2b37b011a5cac9. 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/DGA0M2392535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49e21a23fe769c48cb5805a68add621dc694416f982b9416150ba39034b331c. 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/DGA062312888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ef8a9e62b30649b9c49a36a677c30691e2a3d989957c98d25d3446ea404440. 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/DGA0M2373738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6954e0485ec028d64b02f675bb75bf5d78464d8b8a6336705dd0d3f50d80d497. 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/DGA0H2314702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3750bd841d9e9d077900b435807f31decd370eac3540edd872e14230d27883. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DGA0H2304583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49e21a23fe769c48cb5805a68add621dc694416f982b9416150ba39034b331c. 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/DGA062312888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447a263156eb24d5ba5dd1f8440a64d44d78f68390a810f9734925b0754e78bb. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:34:10Z), 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/DGA0H2314700.
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
Let's Go - Kristian Nairn x Unterberg Remix
Let's Go (Kristian Nairn x Unterberg Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4aeb1fdae3126f8bf6aa7bb1a80fe64928502e1be02ae743e13a17caaf19c0c. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/DGA0H2314698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f6ab3c3b6ed835a528b9b93e3abf101a429479012b0c03a0038e7f8e40b95a. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DGA0M2373741.