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 0x2015e710f45af30aff421aa5a1fb202eb60f2984fbf42a7ffd0f05986d79ff47. 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/d1a7f8e9-d610-4983-9cb2-50a8904e5751.json and https://artists.proofprofile.net/proofs/artist/d1a7f8e9-d610-4983-9cb2-50a8904e5751.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 0xb00b80939b358fabcba291298a65f205c5bf508be11141d0f029efd5d817bd90. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CA5KR2355404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b71bd35e1ba5bccbc60f43ff39a041f72dca7d1e9b04a444f97ba146f2db8d5. 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/CYA222300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac48ab7be32ec764c5e64eef602fcc91f629c0799f56a5a3638b72005e247a03. 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/GXCHK2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338423c6de910f7f69c078c2bba4eadb052e3f2349dc1901c7f5e76b700ae758. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CA5KR2439888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4288af41ceaa711db733002919cbc9aef20994734b12277bb7b9eaccf3fe071d. 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/GBK6Y2252011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbfcdaf7cebd090e0efc604609278c56f5e4c4e032830a4ba8d0102ebedd41b. 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/GBTDG1302792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4a380dff27b839c6eea6b1894628751ebc7096ce046234fb1e1ee2d482b695. 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/US39N2317178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece0e3a9cb2addca4825569a07aca2d8c0d50809b79fcb3d5c01ee5f60f27de1. 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/US39N2309624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b7b9140e3d09f1f97b57cb2e1bf8a47a76a6a2732e6f5b52c8f016132ae22b. 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/GBTDG1302733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcda97f95e155cd5ddee2e3db395619e5238ae9840164b9b89621b1e2b32e86d. 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/GBK6Y2205101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41b2e21e19b85c6b59c469779775258ca481a30601e940dac7f852ddef6f8bf. 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/NLRD52203682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f96cedefe8b61c5b97d560b1bbdced15b53ad6dfb18cb4e3ce2e2408578436. 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/CA5KR2313964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a13ab76e942b5011085520155b488ab0ec2e5d42553f9de4afd4f6b5af70e9b. 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/GBTDG1302559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef381ee55eca1de7765844d650a584043881ac214a96a4f02eac32d9ebf13d1. 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/GBPQS2200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c113d3e07a1ec8ba9804ba0fa0c755a2f183e19bb4740710377609214c6fdc. 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/GBKQU2260953.
Mirror Mirror (feat. TELLER) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fae75f1a5821972b010a6180331b8a850d7ed88d0f4135322ee95a26b1a36b8. 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/NLZ542200820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0028a595abde0deab6d8b7e9fd34a53fd864a8fbd57931c5889d97f61baaed8d. 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/CA5KR2245693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b71568d97e9f19e91f13120c6f93302f0954ab2ee6b2bf3e26b6ac0a292bec5. 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/CA5KR2210309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958c974cd489e849f92bc2eaee3808304cfcc44743b9bf5fb705d1f218bbfd94. 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/GBKQU2203679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968843d1b79ebb913281d0447b2e50c3ac7219c341164292ff31c686ac6ba792. 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/NLZ542101487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1006716ab814236b36c20cbd4a381ccc5049ee7b5052a25dc48931fe55e30b96. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:16:23Z), 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/CA5KR2188670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a165cc996aa65bb7466bd890314ed34547094b59a1f25fc7f5899bf4700647b. 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/CA5KR2188691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8648b52d60fbf7880cb224a0253abd970cddc704ed05d65628deb4674c0c3176. 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/CA5KR2188692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bddc61cef5e48b4e1c54d3deced374827c4d440c98f41df1dd896f96e568ab. 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/FR96X2115877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0c3e08e76bd15731075f96d11f0ef6e36bb5792a551649e83e2a072ecf35ad. 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/CA5KR2058777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45bbe5e6773f06d556c9e37bdc7ba61e811a98053c312332f229b6832c6d19c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/CA5KR2055645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f9df4b5219fd1b6be1508722929535efc1738b721bf106fd781b5b581abf25. 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/DES231700200.
Current Mood (feat. Cat Lewis) [Truth x Lies Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7d831fbf997571b3082d929314af0f72609014bb3216e933b91fb2637d570a. 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/NLYK91700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14374f8ab3427f6c242700222251980f41dee30308ac3427edaeb5b5938cf021. 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/NLYK91700002.
Leave Me Alone (feat. George Shelley) - Truth x Lies Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb96b732d0c62050d4b380f3277fd193a51c14233ad4868c8988a3a050e6ab12. 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/NLZ541800125.