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 0x63e42c5942369047a97c26e759e625d232d17fd796b0e9a71eb9dea2735a7084. 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/a4020adc-9ae6-470c-b54b-7d495798165a.json and https://artists.proofprofile.net/proofs/artist/a4020adc-9ae6-470c-b54b-7d495798165a.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 0x626182b6cdb4912722a8d57d6cc26ceccf0d377c982116c29061b31ec8ae7c98. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1eduROsejdhOh73DURvw7I.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/1eduROsejdhOh73DURvw7I.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2ba8dda5e130d18ef9da38878157d7b78cbacaf5fd02ed2e6966e54c1ea100. 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/1bpL1fF53mXkdGYAMJReLC.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/1bpL1fF53mXkdGYAMJReLC.
{"copyright_id":"0x24fa600c53dfbe967a9ea175ceb4b5f9b03c3a22bb27db13f789f94c85df2060","isrc":"MYAB11009001","name":"Cinta Kosmik","registered_at":"2026-06-19T00:21:39Z","spotify_id":"6ncqRLh6foGXFcTM50VvKJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fa600c53dfbe967a9ea175ceb4b5f9b03c3a22bb27db13f789f94c85df2060. 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/6ncqRLh6foGXFcTM50VvKJ.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/6ncqRLh6foGXFcTM50VvKJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82a80f08a1120859c9fc639137373a89882b7197bd39c27e8572caffcbf24fc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/63BH5tym4Edj5pcH80GqV7.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/63BH5tym4Edj5pcH80GqV7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb665be295954dcf98512841313e240429c11c4441483c9f07e9d2cf6d5ea9331. 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/3YvY3JN2qrX54iEFYKVHEM.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/3YvY3JN2qrX54iEFYKVHEM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad158eb7bcc614d868f9d20b0203a52b93666d6e776325449c585bf120f43e13. 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/7okU5PehMzzToaBzy8nJkp.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/7okU5PehMzzToaBzy8nJkp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe05886ca7dd84dae276fefbbe656d1ebe44ebc7cbd89ef8bdb822532d925e5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4MDjxsseclGufdSrG7BMYU.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/4MDjxsseclGufdSrG7BMYU.
Tak Ada Yang Bisa (feat. Andra & The Backbone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f04003f57ee35b62c1ce432b274bc14b141018b15bf4dd45e69f2008b89732f. 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/4IzKiXEYso9gssoJATDOUN.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/4IzKiXEYso9gssoJATDOUN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82a80f08a1120859c9fc639137373a89882b7197bd39c27e8572caffcbf24fc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7qcmobPeFwtb0Ktsyf6TAy.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/7qcmobPeFwtb0Ktsyf6TAy.
{"copyright_id":"0x24fa600c53dfbe967a9ea175ceb4b5f9b03c3a22bb27db13f789f94c85df2060","isrc":"MYAB11009001","name":"Cinta Kosmik","registered_at":"2026-06-19T00:21:39Z","spotify_id":"2N28zDuiXrkIKRYC5Xdydq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fa600c53dfbe967a9ea175ceb4b5f9b03c3a22bb27db13f789f94c85df2060. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2N28zDuiXrkIKRYC5Xdydq.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/2N28zDuiXrkIKRYC5Xdydq.