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 0xbd556fb53eea61cd6bfdf703b7579aea03af4068022f82fed9d74188ab2e93ef. 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/f7d6bad7-7fcd-4f5d-a08c-ac3fba74d285.json and https://artists.proofprofile.net/proofs/artist/f7d6bad7-7fcd-4f5d-a08c-ac3fba74d285.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 0xae2f71e2e871d5be26651a82de08fa0c6ef07f9bb205664811cb0c9fa5878eff. 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/DECE72302067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9870957b93e7ef8b17666158b096bf21180c09be9c819e9060488fc83004f144. 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/FR59R1827979.
Blicky (ft. Vlado & Rockywhereyoubeen) - Remix
Blicky (ft. Vlado & Rockywhereyoubeen) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4443579342778f5afec1d5d81398fbcbb57474b8c6e04638c4fdbfb43ef487f2. 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/QM7282368339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b43b19595e408905d8a147ca0de5ce9b92bdb8b76b9067282d3d9032092beb. 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/DETX91500239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebad70ca6149de0a84e384be509111e3cfdb3238033a83496d469a0344e2a031. 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/DEQ022117694.
Hip Hop made in Germany - Hits & Klassiker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafec4a48fff9f28d4a64b2daab4b112a6b1333351592628bee5cdce8540edbb0. 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/DETX91500281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541daee5735138e9d1fd9c2997cc12d20aeb5ba8096bc149756878ac3994caab. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DECE72102340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc70a87463865ef1bea96a2102b053481b5b8098ba9824ef24c5c328f13604b. 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/DECE72102338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2122cf7f98c0d589e4464e86f33fb59afa80e53496f2740fdc24945514c3800a. 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/DEUM71807695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4f100c77db4a918ad2f5b0fb5cd2b39cfbf1370ee9dd1aa8cb59aa45806913. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEUM71901455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8431721211eacf9de3f71d8977c302b85a2ee8e70bb5c3530a8b58b11b9ab035. 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/DELJ81613857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc205da30faa878d1abaca740bc4e6ab9d82f62080a38f35bbf5f28b73d7be1. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-21T20:41:27Z), 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/FR2X42155514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d97c6734b474c57b8f48d8e6edd3ee65d435f68e22aaf5f5123a1334d91285. 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/DEVY22400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2122cf7f98c0d589e4464e86f33fb59afa80e53496f2740fdc24945514c3800a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEUM71807695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafec4a48fff9f28d4a64b2daab4b112a6b1333351592628bee5cdce8540edbb0. 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/DETX91500281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b43b19595e408905d8a147ca0de5ce9b92bdb8b76b9067282d3d9032092beb. 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/DETX91500239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2122cf7f98c0d589e4464e86f33fb59afa80e53496f2740fdc24945514c3800a. 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/DEUM71807695.