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 0x75ac92c131300296c9294751a738dcd308701c348e0dfe614d7b9b0ccef0db2f. 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/d79e0727-d83f-4ca4-b9d3-e5e1035be4d3.json and https://artists.proofprofile.net/proofs/artist/d79e0727-d83f-4ca4-b9d3-e5e1035be4d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dream of Me (feat. simon eng & Ken-I-Produce)
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 0x9eb801744f7b279465d4ad5308126661ea5a4af9e97412ddb1763770816e38bc. 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/28WtQCjpSgp0CSV1pDCqQg.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/28WtQCjpSgp0CSV1pDCqQg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd864347cd707ce0e55f1a7cd3f55070bc4dbdc10b03f7454047c605cd5f58831. 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/6fycvYDLa3O3FNLwhLc4eM.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/6fycvYDLa3O3FNLwhLc4eM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd864347cd707ce0e55f1a7cd3f55070bc4dbdc10b03f7454047c605cd5f58831. 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/6GWkXHIURNd6sif9JCnFSg.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/6GWkXHIURNd6sif9JCnFSg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd864347cd707ce0e55f1a7cd3f55070bc4dbdc10b03f7454047c605cd5f58831. 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/5FwVQ0cU3zKq7LzQ9OgkqG.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/5FwVQ0cU3zKq7LzQ9OgkqG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd864347cd707ce0e55f1a7cd3f55070bc4dbdc10b03f7454047c605cd5f58831. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3liPYpZYvXXCMn8BREwKAf.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/3liPYpZYvXXCMn8BREwKAf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd864347cd707ce0e55f1a7cd3f55070bc4dbdc10b03f7454047c605cd5f58831. 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/40ke1BOmv6yyUrfbchPr3P.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/40ke1BOmv6yyUrfbchPr3P.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96905b4c8b120b84ca8b33ac9c1fd8e01bd87ff6d61977fdbb72df4c0864eea. 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/66acTmvl5KcECyHf9x8xkI.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/66acTmvl5KcECyHf9x8xkI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90f96621d6865768faeaf17e76abf230c2fe61bc80d361f34373ecc72817f8d. 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/7b8EmRyBoQnQIvUti4Qi52.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/7b8EmRyBoQnQIvUti4Qi52.
{"copyright_id":"0xdbb3166e9ee251480f8daec7ddb64fc1ef5d09ad21d6316f93a0dbd519a49a81","isrc":"US25X2002881","name":"Us (How Sweet It Was)","registered_at":"2026-06-09T16:45:48Z","spotify_id":"6IE3HZUcI7g20iPOR2Aj5r","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb3166e9ee251480f8daec7ddb64fc1ef5d09ad21d6316f93a0dbd519a49a81. 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/6IE3HZUcI7g20iPOR2Aj5r.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/6IE3HZUcI7g20iPOR2Aj5r.
{"copyright_id":"0xdbb3166e9ee251480f8daec7ddb64fc1ef5d09ad21d6316f93a0dbd519a49a81","isrc":"US25X2002881","name":"Us (How Sweet It Was)","registered_at":"2026-06-09T16:45:48Z","spotify_id":"3sgILooESU2uvU5AjoPcwr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb3166e9ee251480f8daec7ddb64fc1ef5d09ad21d6316f93a0dbd519a49a81. 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/3sgILooESU2uvU5AjoPcwr.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/3sgILooESU2uvU5AjoPcwr.