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 0xebb8135b5c6d85cc9026a43e3ac74d0b9f64064aec319f2fdeade016fbd0969e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68d4df53-8374-4fe6-959f-8ce184a49ee7.json and https://artists.proofprofile.net/proofs/artist/68d4df53-8374-4fe6-959f-8ce184a49ee7.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 0xcadb88a6af41343a422bc1bafaa9548f74dc09bd845001f1cd08c23985b25d9f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USTV19700437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ddf87a0e2e2fc9d221e5b4c208fc31141e6a26d76a6b22a1020fcbf4c1ea64. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USTV19700439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cd6baa52cdf547f01d6c5c0e35418f87ccd0e8febf27e446f633b7cf2160ac. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USTV19700441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fc5cd6e50ac5de3f006519e781b8c3425c97f64dd13568cd3ae7603a705061. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USTV19700442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fbd8e8bf74100cf9955cd44bf82460d337b7faae2b274960bdbb00d3876cfb. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:17:33Z), 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/USTV19700444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c1a496f2fbe725c28b98ec796eb40f875e1e04c7b46714e558a441e1b236c0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USTV19700446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33e85e63fa2e81466874bb5225fe690ccf427b63e7bc41706cc94665ffc94f1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USTV19700447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed3c65783efe89890b6e6cef3386e61b116d73cc33bb7bea1a1aab95c3b6333. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USTV19700450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca0d824ac2e849674073e315d6be0251ec920e660e7a0aa99a69d3fefb049af. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USTV19700454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa19e920eba480060ff279a5f5c08dac05a3139b5e88dc7a62414b87fbd9f6d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:59:51Z), 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/USTV19900170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c08e764360683c6a979614514c38ba3f06eecf825560a08b01fda2b1f14c19f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USTV19900171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe03f4ccb097456ace53c4e8deb3909e802ac8d5467ec634802335e6bd46856. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:39:04Z), 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/USTV19900174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eee188d143f1dcacace0e0e23f554bb94a5cb98ae945fed87c973c47370108e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAAZ1145708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4837f9c76433ec0016954d76b630deae3500739b0e070805e8ef895208723de. 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/QZWFM2313012.
Hustle On The Side (Special Version Insrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9635d8577f033b36f9d195274a1d0c27f0bfe24eb001cafa7cbbab8ff86b1e75. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T14:02:15Z), 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/QZFZ32429535.