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 0x1d16ce8864418f9cf60ae161f0a4409cabd0a54b6870fd1649d80d6ec4bd414d. 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/16caaa27-324e-4f51-b51d-99e41b8d01a1.json and https://artists.proofprofile.net/proofs/artist/16caaa27-324e-4f51-b51d-99e41b8d01a1.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 0xc61a00139f251ba3ee8a159c6e040746a9d76ea17de6ac276b18039b276dd9d8. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/USA2P1621133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24df34320e02fc36a1e32026e4441700fd3d3ddaafdebf7d09d7607b5bc952ae. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/CAR071600235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0f04ba9535b99c45aec818037a0b7b4a121113503e1da97f7d05e535ac7300. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:52:12Z), 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/CAR071600371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84abcbc0da13bace6d01b587f00fea74a6a0205c5773faf4009374239abd6593. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US25X2001244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7118346c429557539b95f047c391a530e6c2c7a65395fdd38f7466e8a1cb96. 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/NLRD51632639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41acf6c61bf50fc8a6c5536145b284a6c8fa18817204683b9250a2cfd074ce9. 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/US25X2102898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa95fe86b4b2ba6c599f0407bc79e11b0ac9bd759873ff871b2e6f65805ec19d. 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/CA5KR2301007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e842787cf4e27db509e29395b7c9de0bbcfddd0ad7af0a299fdf6d073211aa0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CA5KR2440371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8235377a02d82e8ae961833421e46294b390b68aace46f7d477bd008f2eaf5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZPEW2444559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc206d40da8ca55a06886f8305ba990265f4db4eeaf7d2da7bfec41c3ee20157f. 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/USZ4V1900298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f1c3301f666172fd8d9247a54f5e6cc5d8c60ea1cfc073cf15d890d981b5e1. 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/CA5KR2394930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc7ea4b1ba877456746eb120f826baac2edb642a6ceeb507eb11fb3bd332e50. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CA5KR2257734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed364e9256327cd0c8fe4f5f487b003f6396481843db913b9f0f132e37752666. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USZ4V1700180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b8fafdf33344ae499a2768968362b99cc88f5bfc87aeb278924876397fe147. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QMUY41800252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7d08e23d318ed17041329a54ea452c59be29aa4a701b2b85dc5747ed7fa75e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CA5KR2406581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec905974612331823f716deb3df744ba6302bb65cb8f578ed7a295c0c2982b14. 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/CA5KR2316362.
HEARTBREAK PARADISE (feat. Jessy Covets)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959eb26c760b123248fbe90e1b2bf72e93badef46fc1c96c128163bfe20f6d56. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/CA5KR2344342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab783f5a6eb364351975fe4e520352d1aff99680989fdf0fbfc22f40c6b963e. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/QZN882125832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40eaf4cd956fce4845456d2608f4ac55d197c0c49a9f7041ff82c8b1c4dbe13e. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/CA5KR2394738.
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 0xdb868995c5042c519fba8158917b8f724cadd636b57e6c84f4b4acfc35017087. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CA5KR2394739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef362e2457b30efddd41d09460e885a6773da200ec287921c2e2a5eb130e51e6. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/CA5KR2394741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2008580b646f182410f28180a8c56fe1fa791b682c06ff8cda03e1aca9e8c9ed. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZTLA2304584.