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 0x1b8b04fb45aa311f68e0b2080c5a133c1b5016038208b4934138c380dc56f893. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/043640a5-7636-4256-8087-4f289ba340c0.json and https://artists.proofprofile.net/proofs/artist/043640a5-7636-4256-8087-4f289ba340c0.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 0x7fbbca71f35d3b55835e8b16ff5feab69d5564fd2813172082eb6bc9aae5ce52. 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/6RwgkWym6wHx58kdb708qy.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/6RwgkWym6wHx58kdb708qy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4208b21b575f0cd8d29afd87340b09d520d451253a1e0af0988bf053e56135a5. 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/1DgfiLnF03CY6XYeZhjbv3.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/1DgfiLnF03CY6XYeZhjbv3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafe58f14aeab5e23ecc490bd549f927cea39eed6fa3a58fb7b5a866b8c19560. 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/2KiTsmXsxgIekRjJ2Qz05k.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/2KiTsmXsxgIekRjJ2Qz05k.
{"copyright_id":"0x26bf9fb3c2fd99b7a17de0a51ede6f83566c4e5e1adb86fa023c5965dc0798dd","isrc":"ZAO861700519","name":"Sit Vas Op Jou","registered_at":"2026-06-07T03:56:14Z","spotify_id":"3Ag8p1cHPr1ca4ZJ2texTn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bf9fb3c2fd99b7a17de0a51ede6f83566c4e5e1adb86fa023c5965dc0798dd. 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/3Ag8p1cHPr1ca4ZJ2texTn.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/3Ag8p1cHPr1ca4ZJ2texTn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd080c0e8c386c55c87898345c03751c32e059b2075db209d0819d210931727. 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/6vLQ7HI7BTQHQvxC649pIN.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/6vLQ7HI7BTQHQvxC649pIN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb987a0b0844b9c90ef8ba6bc430a831c13dbba1b9291826860b2c5bd18b3fc89. 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/48MthXt3N4IvsuYlYNmho5.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/48MthXt3N4IvsuYlYNmho5.
{"copyright_id":"0x8a4a39a48a0344c9abf04c6dee7d3189bca0c25edd6cbea139cf87c8aabbd56d","isrc":"ZAO862000089","name":"Nog Een","registered_at":"2026-06-07T09:46:58Z","spotify_id":"5bU9DybTg6zfdqOvdEBWEC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4a39a48a0344c9abf04c6dee7d3189bca0c25edd6cbea139cf87c8aabbd56d. 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/5bU9DybTg6zfdqOvdEBWEC.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/5bU9DybTg6zfdqOvdEBWEC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395d430f1832d0d37d40b2325cbe4c383f140a4c32c230a9f9588d999334273e. 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/0Z76d8OfQokqLXhpcIduDh.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/0Z76d8OfQokqLXhpcIduDh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0609644963dfe6474506303c4df9bcb5423e20d2842e2ae78c56911870cdf3c6. 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/0svurugq2CYsP7zGByuUyg.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/0svurugq2CYsP7zGByuUyg.
{"copyright_id":"0x4f8bade3f83694fbbec0a26122016202f93fde994cf21e17ff17254d11d36e29","isrc":"TCAHQ2395463","name":"Op My Eie","registered_at":"2026-06-18T07:42:34Z","spotify_id":"5Cnm6PiSdrkUbAhKlUMYwK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8bade3f83694fbbec0a26122016202f93fde994cf21e17ff17254d11d36e29. 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/5Cnm6PiSdrkUbAhKlUMYwK.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/5Cnm6PiSdrkUbAhKlUMYwK.
{"copyright_id":"0xf3e1e06a2d05f19e715a24f8969f6b6fee3b02970dde661fce81def2cdc6862f","isrc":"TCAHQ2395503","name":"Voel Niks Vir Jou","registered_at":"2026-06-22T12:20:03Z","spotify_id":"13Gy11xhmlPFt50dD5otnr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e1e06a2d05f19e715a24f8969f6b6fee3b02970dde661fce81def2cdc6862f. 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/13Gy11xhmlPFt50dD5otnr.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/13Gy11xhmlPFt50dD5otnr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f482c0a21d86cd46aa5b7791f766dab798ce4c2a364e4d4898d1dd65f2a7e40. 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/5TLdTbaryDECAd7tq9DUB5.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/5TLdTbaryDECAd7tq9DUB5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5411d9e0305cf10a80a332c3338748b910dd90a0834b60a9fe8dd6730f43ebaa. 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/1tWNpIFKCBUPWH8XRaNHry.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/1tWNpIFKCBUPWH8XRaNHry.
Don't Stop (Official Theme Song to the Film Daryn's Gym)