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 0x7e3aaef8fd8a4c7ccd53fee0219a83345e9db2ab65534c26c48ce539599b9aac. 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/60924dd4-87a6-4b51-a049-af116175cb66.json and https://artists.proofprofile.net/proofs/artist/60924dd4-87a6-4b51-a049-af116175cb66.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Intropium (Das EFX Opening) - Remastered
{"copyright_id":"0xef35ab1b89327aa9a4f25e80301dc8628d8d63c7e5a7fc2d89c3067cf664c067","isrc":"RSA222010552","name":"Pucaj sad - Remastered","registered_at":"2026-06-27T12:03:51Z","spotify_id":"1vHlMdVQlzbuT1FdOLMk5F","type":"track"}
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 0xef35ab1b89327aa9a4f25e80301dc8628d8d63c7e5a7fc2d89c3067cf664c067. 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/1vHlMdVQlzbuT1FdOLMk5F.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/1vHlMdVQlzbuT1FdOLMk5F.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67524b1c988e05adb3d09f57515e7042cb099b8687da0eafc3dc2b885f19e30. 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/5N7vWQTN5z6l2aefVmyi2C.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/5N7vWQTN5z6l2aefVmyi2C.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d39d64a9659318e93860ccd030400039d7008102158cc58c159eb71383643a9. 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/06GXkVrFDuWMtWVfzdJaQs.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/06GXkVrFDuWMtWVfzdJaQs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848b81b70a28046138c96cecbdb15ec4f3964618024d2300a8ba4c4a753638ce. 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/5jBSVflisx9N58MFFcTGCs.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/5jBSVflisx9N58MFFcTGCs.
{"copyright_id":"0x86bc719d94aa41a5335d0bfc2c406ca51b4e3bde1ccf0b8fa2f1924c063925c1","isrc":"RSA222010558","name":"Keš kolica - Remastered","registered_at":"2026-06-07T14:34:17Z","spotify_id":"4BnWSV8BzElgy6qEIBbI75","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bc719d94aa41a5335d0bfc2c406ca51b4e3bde1ccf0b8fa2f1924c063925c1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4BnWSV8BzElgy6qEIBbI75.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/4BnWSV8BzElgy6qEIBbI75.
{"copyright_id":"0xe34178a4ac60639ec249e5d97dcdf93f0d4dd92281cc3a5ae00212333c311158","isrc":"RSA222010561","name":"Kraljevski stil - Remastered","registered_at":"2026-06-24T17:41:08Z","spotify_id":"3DSBmw86CwacFkSQsojGCP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34178a4ac60639ec249e5d97dcdf93f0d4dd92281cc3a5ae00212333c311158. 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/3DSBmw86CwacFkSQsojGCP.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/3DSBmw86CwacFkSQsojGCP.
Hip Hop Opium (DJ Vadim Speaks) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e32d6f688467741179cccc4bdb00036d377c563d69b90d5157e9e765694ef28. 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/380Ly0jyPM2WJWNjRnhgii.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/380Ly0jyPM2WJWNjRnhgii.
{"copyright_id":"0x913e23db76f23fdc923a5ebafb8cab60830d8dae5b94050f727dcb39bddb6b02","isrc":"RSA222010573","name":"Ko će to da plati? - Uncensored","registered_at":"2026-06-18T18:47:56Z","spotify_id":"2huzckpWkXAoqITxD99mUa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913e23db76f23fdc923a5ebafb8cab60830d8dae5b94050f727dcb39bddb6b02. 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/2huzckpWkXAoqITxD99mUa.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/2huzckpWkXAoqITxD99mUa.
{"copyright_id":"0xe67ed113d2223f56117758b72181497a906a30ce93f3a3fe3bea9af57680db24","isrc":"RSA222010574","name":"Keš kolica - Alternate","registered_at":"2026-06-25T08:59:22Z","spotify_id":"4oKYaPuNFcTRH8fkzRMVvK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67ed113d2223f56117758b72181497a906a30ce93f3a3fe3bea9af57680db24. 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/4oKYaPuNFcTRH8fkzRMVvK.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/4oKYaPuNFcTRH8fkzRMVvK.
Intropium (DAS EFX Opening) - 2020 Remaster
Hip Hop Opium (DJ Vadim Speaks) - 2020 Remaster
Kraljevski stil - Alternate - 2020 Remaster
Hippa Hoppa (feat. Target, Shwarzenigga, DJ Doobie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182f91e9b5c19f66b47529a41e03c1b6f88bb405f129e99db8cc81a78d9c74cf. 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/2sYTaAGCbKgD4wVWjzntwW.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/2sYTaAGCbKgD4wVWjzntwW.
{"copyright_id":"0x4c0ecf2698aad25e98cb5e7a1515b0a70e5fbd112c78230d0e9be7366e9b8f0c","isrc":"RSA222010589","name":"Bol će proći","registered_at":"2026-06-29T04:20:26Z","spotify_id":"62G9K2ibFjMrRItoYJpvvT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0ecf2698aad25e98cb5e7a1515b0a70e5fbd112c78230d0e9be7366e9b8f0c. 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/62G9K2ibFjMrRItoYJpvvT.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/62G9K2ibFjMrRItoYJpvvT.
{"copyright_id":"0x2bfe08333b2699a9b723aa00fbb3eeebc9443c48720f73c2382fa9adb20cc8cb","isrc":"RSA222010596","name":"Oko nas","registered_at":"2026-06-29T04:22:32Z","spotify_id":"6rDHYgqMbnVZbgCcCUSthz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfe08333b2699a9b723aa00fbb3eeebc9443c48720f73c2382fa9adb20cc8cb. 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/6rDHYgqMbnVZbgCcCUSthz.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/6rDHYgqMbnVZbgCcCUSthz.