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 0x15de840c8dd5b45a27fb0967765b003139548410faab0aafaddb119e3c4b4b5a. 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/18fdfb19-1490-493a-bbb0-d918e223e87c.json and https://artists.proofprofile.net/proofs/artist/18fdfb19-1490-493a-bbb0-d918e223e87c.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 0xfdea8e54d9ecb386acc752ca371f691a40125708c371429c66dcca5a77b311d4. 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/ITB002200218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5528e9b644eb5f4510535823c2137677cc74d280a5799a14beaf9f192543b716. 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/QMFME2253331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88458f91ac2957340f28c6f1c774db87970c6e0b1854e8c73e18bf85ff115d0. 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/QM4TX2343826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c76fd632d5bbea96644fa6ba5fea7aa3eea4a4db7d730ab12f36aa6b68ba620. 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/QM4TX2343833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10aa76e234ca1bfa7a61658e54c01dff6a872ce1aa57a34d4d76e3590db17061. 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/QM4TX2343842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbd228b214cf7605a0de4d3156d727c6a85ec35bacbf1203512e1bca8fda52a. 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/QM4TX2281761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a17425f123991e174a4b689cd0226769ff52718118873bcda1b41e5e7583cac. 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/QM4TX2343840.
Mani sporche (feat. Gianni Bismark & Lil Kvneki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae98a7841fadf1c0e22c0f8d4b5244e122f6b20ba3cdfe317db0db1acd31ff13. 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/QM6N22285319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8835ab729cfed59af89132f0f7c56a5c5ad766ad41b2dacc8cd3d02cf2abe743. 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/QM4TX2343838.
Triathlon (feat. Sosa Priority & Security)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b506e00300c269d359a4eb95f594a9cb12e5227c959cb4b33ccf08256d46c8f. 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/QM4TX2343836.
Dune (feat. Franco126, Gianni Bismark & Nino Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd65f0e6462d443080ade81c5f919ccf168b20a52d038217e74d50a1c0ece9ea. 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/ITB552316972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a2875a4f8e1501ddc367a8a8707e6af448aecd906600b6faeb0fe4b57c81eb. 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/ITB001900474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cd18e9eafc2a3480a3ef3f090cb463483eeb3d60d459f809dd02f85a4e9a8a. 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/ITB002000351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a2875a4f8e1501ddc367a8a8707e6af448aecd906600b6faeb0fe4b57c81eb. 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/ITB001900474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae98a7841fadf1c0e22c0f8d4b5244e122f6b20ba3cdfe317db0db1acd31ff13. 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/QM6N22285319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbd228b214cf7605a0de4d3156d727c6a85ec35bacbf1203512e1bca8fda52a. 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/QM4TX2281761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5528e9b644eb5f4510535823c2137677cc74d280a5799a14beaf9f192543b716. 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/QMFME2253331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdea8e54d9ecb386acc752ca371f691a40125708c371429c66dcca5a77b311d4. 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/ITB002200218.