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 0xb88cd4c6da60c9df3379a6b039e64ae93d954b8bdc3ef638de75be23c7c2ec1f. 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/609ba0f5-da24-444f-9c4a-93e1211ffdcc.json and https://artists.proofprofile.net/proofs/artist/609ba0f5-da24-444f-9c4a-93e1211ffdcc.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 0xa5fca7bcc82cf6a08073ef04d7ae69e4c1ae348d0aa3195d89718765938455dc. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:37:55Z), 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/GBDLP1200771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5f6b6c03db8223ad21a898bf570e8ac2402943bcb645b4fd33cd3bb7c5eace. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEDL81201019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffa0181554c339a0abf0548abe41a1ab7a2dbd8df1097a2409f65ec0468aac6. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:09:10Z), 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/DEGL61200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e13ce31aee4d5be4981320a4cc0f6cffe83af8cce2a8471bdb8121d66950648. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEDL81203165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85774f8c1a45367acc813be6cd2c2072bba815c69a67eff2f28b4520488362f7. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:19:46Z), 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/QMSNZ1311000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe068aa9c01f8e53cfacde84a00e54ff98aa67989411afb67583d1d46626b22e6. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/UKACT1650198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c4998c7f355ff742cc7a91c681d2f36dac35bfc259651e176f43176640d264. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/GBKQU1780506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbda7597557d891fe1acb0f421982d9ba5d007761f7792846b5752216a4041a. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/GBKQU1921031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf623837b5b907e79b80f8a4cbe9073f5aaffec101a3e08ff0a683f434ab9e2. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBKQU1983887.
American Dream - Andre Crom & Chi Thanh Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286092e04dc2bf3d35b8a2c436c45a03b40e5f4e08debecba55f5939f6b98952. 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/GBPKF1400008.
Vermillion - Andre Crom & Chi Thanh Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510b80987e0c92a956e04541d11eb7c23879daf9917d98adec8eb9f1ce3ef2fa. 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/GB0001400049.
Freedom Call Feat. Jinadu - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47badb9456deb7676e098f881eeefeb92df462e68c26680ec6c31eb6cee82c33. 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/UKACT1550329.
Everyday - Andre Crom & Martin Dawson Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e316708e8c32f81580dbac3f8cd72efc9fdc330ada9109f2c4a3834bbb17435. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DEGL61200062.
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
Our Thang - Andre Crom & Martin Dawson Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ef14b54befe47aa923cc8cdaf044abb9036914ddb3deb8d32f8454dcefc943. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEDL81101384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58674f611d3474195df10c0b89f455897c00cf0fb78b6cc647692a8007cce36f. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QMSNZ1314055.