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 0x7469ee510408ab9a12c22454b4024a2d3bc3e60e071c3d333a3b96ec302844a4. 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/9597bae2-2917-4b69-91f9-1e4537f14c57.json and https://artists.proofprofile.net/proofs/artist/9597bae2-2917-4b69-91f9-1e4537f14c57.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 0x7ccd44b73dbd9e9666f5c44b725f145f5ab069cf725e3777da9c51a5f9724511. 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/5JhDPguainuI4IoqGMngRV.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/5JhDPguainuI4IoqGMngRV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df24dc3eb466c8388fecc70eef591598b79afebbc15ed7420e21fd934b07630. 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/3BaN7BIqVQjDe9sTgskJeR.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/3BaN7BIqVQjDe9sTgskJeR.
{"copyright_id":"0xd64b4f6ad45a9be70be54281a082a08663327a1c4ca42a66cce77a42c3e3699c","isrc":"TCACL1628000","name":"The Ride","registered_at":"2026-06-29T05:27:35Z","spotify_id":"7GosFJQxCma5uUpgFrUjyV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64b4f6ad45a9be70be54281a082a08663327a1c4ca42a66cce77a42c3e3699c. 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/7GosFJQxCma5uUpgFrUjyV.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/7GosFJQxCma5uUpgFrUjyV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6950e87e8c9d493f79ab8c44fce972e34618dd2aab27806c63bd33c4b776cfd8. 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/2rpMVDEuVv8P2Jq3UMx7sS.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/2rpMVDEuVv8P2Jq3UMx7sS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf781f46a91ca6dea0b715717ba66047c9f0d3b0f05e59c43c8c8a0c9a4ae9462. 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/0W6Kx3tP9fqu6bEc9lVXYk.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/0W6Kx3tP9fqu6bEc9lVXYk.
{"copyright_id":"0x22d0f894a855eedfb245e1f2d97cab7c9a1756a26ea94cd4b314614d643e5f2f","isrc":"USUYG1131654","name":"Fuck My Enemies","registered_at":"2026-06-07T01:36:51Z","spotify_id":"62nK3XGEUfUGfVkWFxV58i","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d0f894a855eedfb245e1f2d97cab7c9a1756a26ea94cd4b314614d643e5f2f. 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/62nK3XGEUfUGfVkWFxV58i.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/62nK3XGEUfUGfVkWFxV58i.
{"copyright_id":"0xd89aa9c1ded8499057fae48043dd2dc2cfc7dcf8277ab87e492499046455e5bc","isrc":"USUM71907428","name":"A WILDFIRE","registered_at":"2026-06-18T13:49:10Z","spotify_id":"0lcspkOicZS5RHluaHIdLi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89aa9c1ded8499057fae48043dd2dc2cfc7dcf8277ab87e492499046455e5bc. 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/0lcspkOicZS5RHluaHIdLi.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/0lcspkOicZS5RHluaHIdLi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a7c22b74fe7ded1fc8994ad8e8b92ed97a78b8448f0ef869b3ef70bc898592. 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/4yCoKbBF1JGTFhOkVk2cx1.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/4yCoKbBF1JGTFhOkVk2cx1.
{"copyright_id":"0x7d7881de85b0304e6fd8aeb8b4f6c580dfe6b99512fcd126d3a9f2a208bdc176","isrc":"USUM71502329","name":"All Day","registered_at":"2026-06-01T19:07:35Z","spotify_id":"79reBHqpRoWXaQbjBBY3UC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7881de85b0304e6fd8aeb8b4f6c580dfe6b99512fcd126d3a9f2a208bdc176. 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/79reBHqpRoWXaQbjBBY3UC.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/79reBHqpRoWXaQbjBBY3UC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2c4024d1f99f19c195e58f5d6eeb934548ae7564fd9fc3591cf4cd4cd4e47e. 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/3oOfsrBJhmGOJUPtxHajse.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/3oOfsrBJhmGOJUPtxHajse.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4356ec97fd24290259a7608b80b456290979aaa2423cc5fbe760fbc33ebf2bff. 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/6MYUammQ4IxAYbpBcziflk.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/6MYUammQ4IxAYbpBcziflk.
Cold in Here / Koolaid (feat. Allan Kingdom & K.Raydio)