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 0x01d90493481995729d8d0237988fb03eea16cec7dd6e8d18f847f7131abb0a40. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6734400e-1192-4aa2-8dcd-cc19f0bb90b4.json and https://artists.proofprofile.net/proofs/artist/6734400e-1192-4aa2-8dcd-cc19f0bb90b4.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 0x8cf68f6446ba4c64192f1bbca582eede9c47e2a7a19a87e512d670fc2aa13abf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US2252442201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38eee5f26699989b585eda1a9bc615a0cfe94c7dedd633031c7a453ff2894cd. 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/GBPQS2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f3d461dee48859b12e528b7509cb59c87f1ef3bea3149cf17a41ccbc3d2eab. 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/GBPQS2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8370a52c35f5550b5da80455383bb7418967a8dd776359394bf7eba83443e2f1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2385937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b3d633428a83eea095137af1264a7ee949b74d0213287ce97766bda2c724b3. 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/AUXN22383633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe501b59ac5d19aff0f1880c849045b994584a1e3b542a24565031f1ed63dab3. 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/GBLV62201629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae5220541658f9ec79ac2b47c2a150d2aaf5c43db6794e981e3c82903b2f856. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/AUMPB2210603.
Gave up on Love (feat. Zandrina) [DuBeats Remix]
Gave up on Love (feat. Zandrina) [Demarkus Lewis Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35cfe1493d6ed26ad74285c248831b18229e17591f7e8ffea41c753a5b8e8085. 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/GBPQS2100158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2145ad695bb1c6be6bbef77c8accf6b5593c8797e146811656d7b2a79a3c16. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBKQU2168628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55e0b7d05e039b8720a77fc3d74f24db642f58e3b42cbdb1f5b7e5cb4a9f448. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBLV62023645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a7fe254748a9b9744b1da01585735811b69bd97206469fb3c72efafbb8ea7f. 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/US5X22020105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa081aecceba1a877a0d8374ce7cead1f866f3904d2f772bfa98521ef44339350. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US5X22020106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabad720a26cb005556b51b67b8ffc5b9de4f64e0818cd0280625996ff128da5c. 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/US5X22020107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9d9367bbb0c5086b40024819bc4ebf391771a3e598a5255eea40a4368f2bbe. 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/US2251930601.
Take Me Back (featuring Tim Davis) - Dub Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5389d5aa3c69b8c349052ca33184a736657cc57764879df9cbee75cd51a13e. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/US2251930602.