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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6dde64de0021227d684d653f4dcdd3fc6537eac12287ceda368fed91d2a8404. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/088b86d9-0e15-4630-a6fe-b78b674ce1b0.json and https://artists.proofprofile.net/proofs/artist/088b86d9-0e15-4630-a6fe-b78b674ce1b0.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07253309e9f40829bf0aad38a89f922c39a7375ee12593f060a969f648025d0. 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/GBMA21816579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe66866ff6ba6d376e0651cd22f1d4c2f6bbd2a6b0c4d9cc752e0ac01f5df4d9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBMA21816834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c6d678ff762f2f294847f201831a5976477d31d818b1cb33e33132764ad823. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBMA21816869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d42321f001ead5a9e1f3184e9e72dae3455c52ace9d7de31ed3be22081ce17. 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/GBMA21816511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee76ab5f124fd1373a76929848c3e107e17c3e35eaf94cfbc33267ffae987270. 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/GBMA21816519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83002ae88d2b3d1b59ba18dc7d239b3eaf5408f7d3c06bec1b03f74ac8601a8. 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/GBMA21816538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c544edd22295ae87a9cc513ce57d744a39b1998b04fca6c0a370635875a2f14. 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/GBMA21816553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfe5b39deb8c90b90ed4b3d7470dbb203d9b31362724869d288f2f930ab9e45. 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/GBMA21816561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3dbae85795a512d5339800e9d79e6ef2aed96468647661df9472400ac3b8a4. 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/GBMA21816921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff56e047dd4be96634ba2ed8f90e99e29fa68f9f0247f3c28a87044e0184e17e. 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/GBMA21816924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d879f1f6fc6d2b7d066ea9f75164e341b316105f5bfe94e934015d584a525f. 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/GBMA21816926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8111a7fdad1b36ec3d47e1c0becb144b18f4556934fe6b5fad708d3e8fe36ec. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBMA21816927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9f488a17bde8426c2ebb784cf23b791ff225732ed1cf0fc83573c3c9b9d33e. 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/GBMA21816931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937224f52e0e5546f60b270ba891bd7bc5ae2ddc1e3ae1884d9e8aa56d73f56d. 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/GBMA21816980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3db2b96a3b5d7012eafbbd3785454515d40295a22ed6bf968b0b11c59f3657. 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/GX3Q92342023.
Cavernicolas - Dj Hermes, Mijangos Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503ab0871de52e90180db40a09f1cfe971f6be53f30b16175ac1f980e36525d6. 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/CA5KR2286181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3ddf52d422c4e18c4c87f1ea0c1e1e0d0f7426e38c47b51d6df0b0d7732e84. 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/GBMA22083827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e24dd8f60014ee6018e6927ef600d19ce82f99896747f583280090ee7875a6. 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/GBMA21841679.
Pasión Que Se Vive (Tema Oficial Serie del Caribe 2019)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4cf59eb72fe9e23f3fa53bc293c23b4acf3e614f726f42f376c8c8c25f91b96. 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/GX3Q92493895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95970f7e9e41881758bbd2506437d46b6ddde81bf8a46ce91ca0a7023f33632c. 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/QMFMF1562297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf43e02b17ea0515cbbac972b682b0fd61b4507738e2b721af47901e1ab8d46. 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/QMDA61888623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd246ca1a2cac80c28d9101897611ed377e5d6afbdd2cfd53b11b6b8926d16934. 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/QMDA61888301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7c86f6f9c64e2fe25b0d74f0fae2f7a3be61630e421e07b1ea84f11fd08c8a. 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/QMDA61890206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99bcdaca062715dc9d2399eef80686e983f5e815c815a110f30a7cfa3c87260. 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/QM4TX1714548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbf0fa3f1b25c37a64e955749f8b9672916b8e28ca08c2e84e8d79a420aab97. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:01:09Z), 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/QMDA61888304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58649b7a88db6aaa0613cd603aa528fca173c8918b736f5ae1f7bedb89363093. 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/QM4TW2416663.