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 0x5b85e55af52a51b300d361859edb9d845aafe715ca1c927938ab76ac3d8931ce. 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/3cf396c8-e405-42ef-9389-b5af56b95243.json and https://artists.proofprofile.net/proofs/artist/3cf396c8-e405-42ef-9389-b5af56b95243.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 0x0a9db8ca6af4e2240f10ff2a0175da3b65482522241e980a15626f40a631c69d. 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/5gXKDmafOQ8i4lYr62wxTk.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/5gXKDmafOQ8i4lYr62wxTk.
{"copyright_id":"0x7f1847a21f5c323226d40447145f64b5b2ed488a345f44edd60382cc18acbeb2","isrc":"USA2P1499048","name":"Astrix on Mushrooms","registered_at":"2026-06-07T06:21:14Z","spotify_id":"1kpIEEwDGWRLBUHcbukM4L","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1847a21f5c323226d40447145f64b5b2ed488a345f44edd60382cc18acbeb2. 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/1kpIEEwDGWRLBUHcbukM4L.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/1kpIEEwDGWRLBUHcbukM4L.
We Are Planet Perfecto, Vol. 1 (Mixed By Paul Oakenfold)
{"copyright_id":"0xd9173acb32e44c3f9b365bb93bbd219ec807cac1b5523e2ae3df247a8bd97292","isrc":"USQY51430347","name":"Roll Over","registered_at":"2026-06-07T03:44:43Z","spotify_id":"0TvAE98jICX0LxDsZPdYvJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9173acb32e44c3f9b365bb93bbd219ec807cac1b5523e2ae3df247a8bd97292. 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/0TvAE98jICX0LxDsZPdYvJ.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/0TvAE98jICX0LxDsZPdYvJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097b07872ecab1dd583dd60d22cfedf220d055dda82527dd5f8831e257ba4994. 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/0iN3zr4Cf77OdU6RaH7QOG.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/0iN3zr4Cf77OdU6RaH7QOG.
{"copyright_id":"0xa8289f225f5efa3f1b337402cd03cd514aa363eb76ff24e3de8f1f94c4ee6ba5","isrc":"USA2P0502706","name":"Life System","registered_at":"2026-06-11T04:42:44Z","spotify_id":"1Ap0SNkRLmWlD9inPi9Igv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8289f225f5efa3f1b337402cd03cd514aa363eb76ff24e3de8f1f94c4ee6ba5. 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/1Ap0SNkRLmWlD9inPi9Igv.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/1Ap0SNkRLmWlD9inPi9Igv.
{"copyright_id":"0x3eefacee88df21f49bbdd0a63f3b5fd313a09854abe58617c285a8f573749d9f","isrc":"USA2P0502707","name":"Crystal Sequence","registered_at":"2026-06-18T13:12:40Z","spotify_id":"1YR03iUrEAyyeRIrUiZmpu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eefacee88df21f49bbdd0a63f3b5fd313a09854abe58617c285a8f573749d9f. 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/1YR03iUrEAyyeRIrUiZmpu.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/1YR03iUrEAyyeRIrUiZmpu.
{"copyright_id":"0xb7e690df6fc4efa68bbf5f50d9166085d813df3f0e202944f42bb59db135a472","isrc":"USA2P0502708","name":"Wider - Astrix Remix","registered_at":"2026-06-18T13:13:14Z","spotify_id":"3F7pMSiQEwma5ujytC5aDV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e690df6fc4efa68bbf5f50d9166085d813df3f0e202944f42bb59db135a472. 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/3F7pMSiQEwma5ujytC5aDV.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/3F7pMSiQEwma5ujytC5aDV.
{"copyright_id":"0xdbf0d55bbf08784af6d489b725acfa81f4ab8b3007d402005b59607c2f4baa7a","isrc":"USA2P0502709","name":"Massive Activity","registered_at":"2026-06-09T06:11:39Z","spotify_id":"60t410AVXVvm5DtxEES1nR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf0d55bbf08784af6d489b725acfa81f4ab8b3007d402005b59607c2f4baa7a. 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/60t410AVXVvm5DtxEES1nR.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/60t410AVXVvm5DtxEES1nR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313ef9f8e6a178d51254d8d4ac48524ac92787a5085eb1f1068863c277a368d8. 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/3BqST40QPNEUXjcD7KMHI4.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/3BqST40QPNEUXjcD7KMHI4.
{"copyright_id":"0xa54cebd14c7d9c1a0f7b519df2410c278f14ad630ac4d9f2cecaa2bd06c7b4f5","isrc":"USA2P0502712","name":"Side Effect","registered_at":"2026-06-20T19:11:59Z","spotify_id":"4wRTdulkmRvAjlghr63uvk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54cebd14c7d9c1a0f7b519df2410c278f14ad630ac4d9f2cecaa2bd06c7b4f5. 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/4wRTdulkmRvAjlghr63uvk.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/4wRTdulkmRvAjlghr63uvk.
{"copyright_id":"0x1e8872c8df521a28c01ac43b7f9de2e4ef6186281f6789327ccf0bda40527997","isrc":"USA2P0502713","name":"Scientific Reality","registered_at":"2026-06-08T01:47:36Z","spotify_id":"1AUgI3pDbXPvHXkXWZLuuk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8872c8df521a28c01ac43b7f9de2e4ef6186281f6789327ccf0bda40527997. 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/1AUgI3pDbXPvHXkXWZLuuk.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/1AUgI3pDbXPvHXkXWZLuuk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0099e0b0fba9ba696df859cec8eb14b3be82634cc93358842ed82deac0b5e2c5. 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/57bq5xs8rmlI1APS4xDDAW.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/57bq5xs8rmlI1APS4xDDAW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faa46ea8ecf38af986f25762e1503683286a73c8fa8d9e74fe3329c7af51973. 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/2hbSr0jL0wSrcAGYHIXDRc.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/2hbSr0jL0wSrcAGYHIXDRc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa39ce730e0dafa19c9c336534cc890c0bbd413936b10cdc03ac671102c33d5. 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/14zwd33ERpX25UI6lPF4nu.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/14zwd33ERpX25UI6lPF4nu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297eacbc133b65cc7ebe9d0d205493915877ea857a796541104397c5de3bcec5. 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/3z3UJFsd8NQxCAeYaSathi.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/3z3UJFsd8NQxCAeYaSathi.