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 0xa8c07c1a7f50995c1d29c3cb5ce94fbef831a9aa545ad0d692cd0b19a311f331. 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/5d90c7e4-b415-4ac7-86a3-c02a8fb4752b.json and https://artists.proofprofile.net/proofs/artist/5d90c7e4-b415-4ac7-86a3-c02a8fb4752b.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 0x0c51f15fce76d952707eb0547dec7077f6af326f71c94f89f674dbbeac926159. 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/DEL712410086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e50af533c1677761a45fff85d2185430781028cfc70d34dad6d3ca993f8326b. 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/USA2P2339490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968a358299817d3d90be33fde9453d4ab0802bfd7e543623b7d17a2ccf9093ff. 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/DEMA61907240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80630798aed618cd7e1bfd2383795ca9b23ae00d89b3ddda0d15b5bbf4e44bdc. 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/DEXN92440592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01f24620b13c0480f222e364fb69cf8817b89f9a12dd71a7d52de38ec40a6a4. 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/DEMA61907092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0837a074725f48a7cf0ba51d76e50ba57c6e84b65408baca7f0f39e0545aad3c. 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/DEHK90909921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850664c1db7f54484daca39ad0ba8c1f175e0a7a5fb69f25000486d134831d42. 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/DEHK91264201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07a0b4ee06929aefb62497f9e18bc7ee5f3e06afdb953dc54c75be973c8cee9. 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/DEHK91264202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e4c1fe0117c7eaac863e7a71db88d0b5a71e3cd510b5547727eacad5db9aff. 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/DEHK92108520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497f7bafe7fbed3923aaee3110053a6b59a62d824d74f216a121641ffc89288b. 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/DEMA61906170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f16cd70c2f16723b70166b785a6f03a5d10628feca4810cf3b11feb61777e55. 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/DEHK92106541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746c1f2e6102d55dd49ee6032467145a0b388d5d760b413465f2212a0ff8b00e. 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/DEHK92106251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba8787d46b39496013e5c0044a0c14d5ebdcdc595af7a881dd82cb777f294a1. 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/DEHK92105571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9062ef9ef227bcf10a30698208e026af5020866889d720817baaccb8aa65978. 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/NL1ZN2000271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5c4f42120e85af55fb3b2071d33624f2295f45acf09c33b74bb1ca717caf5d. 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/DEHK92002455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2776fdf8a53d51f3b2f385d9f1daa5fc883ac5c25bc88e4709dca3e497dfcff0. 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/DEHK92002451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb339900a0b488eb30d3c35d9d0d70aa5cabc2899bafaba450732234eee23ddeb. 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/DEN062003583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b52cfce7410c951c3e43c3d3494ea10a8d920f925dc86db7aaa67c8e7abbdb. 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/DEHK91688668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60819c8a2f8875aa5e1becea326c4159e5b071b59704799a487221b3c07777ef. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEHK91688666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a14fc274715556e262dc9e4b65de79cde0264f17cfbb25b166accf72348cc5. 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/DEHK91688481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d920de7e871ef75ef51f1af798a5ae6f9dd1fbdeeb1b0c14eaec64e7c9baca8. 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/DEHK91688482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe070ce4de11d75944655eedeaa975ea2d94243a03b87f9925b0fd40913a5ed21. 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/DEHK91687765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24c099c826379c5e2b25e870e015217e1ab390754bfe743cd65d80355a25fb7. 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/DEHK91687761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec4f05109867b8555a5ee7c22b44b8d0f8a995ef77d60bb01e486c84c017321. 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/DEMA61907567.
Razzia 2.5 - Felix Harrer Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260b911eff911030681eb6ef8b61711226c1dbdcb473f690bb6eef2bcea1136e. 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/DEMA61907568.