1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x18267b70f1928f4424450c659bb92106fc3f9de17045b2b7b0fda1d186393548. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3cfff4f1-5007-4f37-98fa-a56dd52eb6f0.json and https://artists.proofprofile.net/proofs/artist/3cfff4f1-5007-4f37-98fa-a56dd52eb6f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f1093362161796a72d62d721336b9e988ec0365c0f1f01c29472e808bafcfb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3FdHgoJbH3DXNtGLh56pFu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3FdHgoJbH3DXNtGLh56pFu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ec4aba784de54246f990732778ee33ae690fc7b3297278e9bb7bb58d9ca8cf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3HbDHG6oHKjc6mc9JREW7T.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3HbDHG6oHKjc6mc9JREW7T.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f1093362161796a72d62d721336b9e988ec0365c0f1f01c29472e808bafcfb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2xZ2UaZKLjCfa3EoaN49jP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2xZ2UaZKLjCfa3EoaN49jP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d4ac8189317c7349ff496573a86ff77830a4581e0393cf0c598ebde0fc6caf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5nm7mFbjZ7ptkSE8JhpaRl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5nm7mFbjZ7ptkSE8JhpaRl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ec4aba784de54246f990732778ee33ae690fc7b3297278e9bb7bb58d9ca8cf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7kwsCt2qYps64uQOtjD7tQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7kwsCt2qYps64uQOtjD7tQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ec4aba784de54246f990732778ee33ae690fc7b3297278e9bb7bb58d9ca8cf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/44YdeEQgXDhdFxD4vBEZkc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/44YdeEQgXDhdFxD4vBEZkc.
Rhythm Is Gonna Get You - Pablo Flores Special 12" Dance Mix
{"copyright_id":"0x14e2b3babe6a0ae8be18f1ff888f43436bf52357d617248222f3508e57ec731d","isrc":"USSM19804990","name":"Rhythm Is Gonna Get You - Pablo Flores Special 12\" Dance Mix","registered_at":"2026-06-10T15:29:48Z","spotify_id":"6vVcSkjTxz58UDj116a0de","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e2b3babe6a0ae8be18f1ff888f43436bf52357d617248222f3508e57ec731d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6vVcSkjTxz58UDj116a0de.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6vVcSkjTxz58UDj116a0de.
{"copyright_id":"0x63528cbe1986d85847d28f41f6c09baabfcf06db2a0f5c5fd8eaf907b6513abe","isrc":"USSM10026571","name":"Words Get In the Way","registered_at":"2026-06-10T02:17:37Z","spotify_id":"7IM33HFK2978Zh7gExuBPJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63528cbe1986d85847d28f41f6c09baabfcf06db2a0f5c5fd8eaf907b6513abe. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7IM33HFK2978Zh7gExuBPJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7IM33HFK2978Zh7gExuBPJ.
{"copyright_id":"0x14e2b3babe6a0ae8be18f1ff888f43436bf52357d617248222f3508e57ec731d","isrc":"USSM19804990","name":"Rhythm Is Gonna Get You - Pablo Flores Special 12\" Dance Mix","registered_at":"2026-06-10T15:29:48Z","spotify_id":"6gFluz0ErSwSRlG3bSFqZ7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e2b3babe6a0ae8be18f1ff888f43436bf52357d617248222f3508e57ec731d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6gFluz0ErSwSRlG3bSFqZ7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6gFluz0ErSwSRlG3bSFqZ7.
{"copyright_id":"0xee158aea7631b594ad480f502a62e553add5726c1953b96b4f41e0b97c6b976b","isrc":"USSM10011989","name":"Can't Stay Away from You","registered_at":"2026-06-10T15:27:38Z","spotify_id":"72Lcex0WcAeSwCX2bBFkbQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee158aea7631b594ad480f502a62e553add5726c1953b96b4f41e0b97c6b976b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/72Lcex0WcAeSwCX2bBFkbQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/72Lcex0WcAeSwCX2bBFkbQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee158aea7631b594ad480f502a62e553add5726c1953b96b4f41e0b97c6b976b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/09Zg2pY9qS0gybcKhFY2uS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/09Zg2pY9qS0gybcKhFY2uS.
{"copyright_id":"0x19b216292ea6e2d7eeb2db8c07755eae9ccd83a221393ef757098b2b3a4a58fb","isrc":"USSM10009792","name":"Dr. Beat - Long Version","registered_at":"2026-06-24T08:41:09Z","spotify_id":"4zTwtMaBRJeHILjzLDtD9F","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b216292ea6e2d7eeb2db8c07755eae9ccd83a221393ef757098b2b3a4a58fb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4zTwtMaBRJeHILjzLDtD9F.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4zTwtMaBRJeHILjzLDtD9F.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f1093362161796a72d62d721336b9e988ec0365c0f1f01c29472e808bafcfb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2eOosF5vfr7eS1h3AQUfAJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2eOosF5vfr7eS1h3AQUfAJ.
{"copyright_id":"0x46ec4aba784de54246f990732778ee33ae690fc7b3297278e9bb7bb58d9ca8cf","isrc":"USSM18400404","name":"Dr. Beat","registered_at":"2026-06-04T16:09:15Z","spotify_id":"0LEftUZvrWwqMLEUgtrNbQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ec4aba784de54246f990732778ee33ae690fc7b3297278e9bb7bb58d9ca8cf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0LEftUZvrWwqMLEUgtrNbQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0LEftUZvrWwqMLEUgtrNbQ.
Hot Summer Nights - From "Top Gun" Original Soundtrack
Top Gun - Motion Picture Soundtrack (Special Expanded Edition)
{"copyright_id":"0x2dcc9615aa4e22b889371f2fde82f1821f754a8d4728e65af51088f990b8d968","isrc":"USSM19904570","name":"Hot Summer Nights - From \"Top Gun\" Original Soundtrack","registered_at":"2026-06-04T10:13:37Z","spotify_id":"0LpFFaWnSBqU4MCqwKaRQC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcc9615aa4e22b889371f2fde82f1821f754a8d4728e65af51088f990b8d968. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0LpFFaWnSBqU4MCqwKaRQC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0LpFFaWnSBqU4MCqwKaRQC.
{"copyright_id":"0x2dcc9615aa4e22b889371f2fde82f1821f754a8d4728e65af51088f990b8d968","isrc":"USSM19904570","name":"Hot Summer Nights - From \"Top Gun\" Original Soundtrack","registered_at":"2026-06-04T10:13:37Z","spotify_id":"2rDOF0Wi73DOKtz74qks4I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcc9615aa4e22b889371f2fde82f1821f754a8d4728e65af51088f990b8d968. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2rDOF0Wi73DOKtz74qks4I.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2rDOF0Wi73DOKtz74qks4I.
{"copyright_id":"0x1471371ff7d1c4dd864a1ac787043d36fff974c6ad81663bea073b916baef452","isrc":"USSM18800443","name":"Anything For You","registered_at":"2026-06-21T20:11:35Z","spotify_id":"2GErVyz1EnssoARYFxHOPO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1471371ff7d1c4dd864a1ac787043d36fff974c6ad81663bea073b916baef452. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2GErVyz1EnssoARYFxHOPO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2GErVyz1EnssoARYFxHOPO.