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 0xea2c34f7372cd200653e061ab828b61b757b6bc7edd2bc19c02ab4992a7d434f. 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/5a46e7df-2464-48e0-a3f1-fef260ee5d16.json and https://artists.proofprofile.net/proofs/artist/5a46e7df-2464-48e0-a3f1-fef260ee5d16.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 0x70af69d6c8e25be450be0b72c23358c2abc8b5d82921c2aaa961ddfb41658355. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USLD91713822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba301af0da6498252b1b8765d0b493b61f7e9b3d8f0547f34d3b69ecb5699e2. 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/USLD91713823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1c34a15bf9e9dffd8ba6e77bbde74d1eb1b4cf4de938049907818f74558342. 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/USLD91713824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68e28b6d5bdee69156dc2b9a576c326cab28603c06abeafaa82bae52350d579. 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/USLD91713825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e9ec0f0ce6491ff05374ae941174444b282cb458aad90a7ce367df1bfe1268. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USLD91713826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bb711cf8a56ba9d0fe9e726bff1978afbe66e27359423419e0b51ce69d11c9. 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/USLD91713827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bddedc293b071ffe57d1557b84cfd35971f95131477f1dbcd3623e1632f1b14. 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/USLD91713828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c78a8dfe25333786b61a78e339641e65a2186b5fbcc9f37aac33be3fe98be4. 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/USLD91713829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3103c540a18a02bfe913f72bbeab88d551372604edab5111029ccc4f0ea243. 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/USLD91713830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35b0851af5a0ac51f47d1c4fc8459a1f21c93afebfd15534bd2fe22826477e2. 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/USLD91713831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45baf6f616bda9548a383f10251a7e76708f1b50aba51ac9d64624885544fcf5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USLD91713832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a79ff46c727ec11acd36ee5f2a8127ea0a76032b2b59e01b9680de6d1fff8ec. 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/USLD91713833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d7ca63c957cea04f42a28dca78c5e846eb0de8bc9dfe40a099d1f018fe4ad9. 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/USLD91713834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19423fb594833aeb758bdec276eea5bf4b821e486628f8565c411a8e2bd6cc20. 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/USLD91713835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d966b0e50d564e6187424237b49999000060cf5accaa72da1518a50b5293b5c. 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/USLD91713836.
Crazy Brazy (feat. A$AP Rocky, A$AP Twelvyy & Key!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b4a54784340630a1cdad95623434681ef0440a9a2b9726f27a2c32295cd668. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USRC11602362.
Oh Wow...Swerve (with J. Cole feat. Zoink Gang, KEY! & Maxo Kream)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860f5a188cc432f44c1ebc213c4dda8b6d19bab32b9766ad84f6adbc51c95d68. 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/USUM71912962.
Revenge Of The Dreamers III: Director's Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860f5a188cc432f44c1ebc213c4dda8b6d19bab32b9766ad84f6adbc51c95d68. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUM71912962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9562641d1037a2b3e6594e428eb6b82bfe25b46ff922afcb72137078350adde. 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/CA5KR2231834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b15d1bdc13faf4c5ec03a1dde096a15907990b5781747a4ddf1b42fc212f6e. 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/CA5KR2384196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27648523bb16fb41f0e01b690b61b0eff9a0aa1eba0b4349b649cdb419112097. 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/USUYG1201849.