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 0x385b21160bc1429da0562442c2037c3992ca4d4dd89434d8f8f4c2b967a1162b. 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/34d06ff3-44e3-4f65-be3c-6b4149ac533b.json and https://artists.proofprofile.net/proofs/artist/34d06ff3-44e3-4f65-be3c-6b4149ac533b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x4b7fca8efec2817f467a2aa3170566c7043ffc8a91a9b7fd27fd332856bb9689","isrc":"US38Y2410177","name":"Put Down The Gun - Dub","registered_at":"2026-06-18T05:13:03Z","spotify_id":"5TA6lDRlUNPWNGO6HRFrpQ","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 0x4b7fca8efec2817f467a2aa3170566c7043ffc8a91a9b7fd27fd332856bb9689. 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/5TA6lDRlUNPWNGO6HRFrpQ.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/5TA6lDRlUNPWNGO6HRFrpQ.
Green Brain (with Lee "Scratch Perry" & Yaadcore) - Subatomic Sound System Remix
Green Brain (with Lee "Scratch" Perry & Yaadcore) [Subatomic Sound System Remix & Dub]
{"copyright_id":"0xa12a17146e0b2e75a69accdef856d78b7c59229106c4afef1b87dfef39b04c04","isrc":"QZTRX2316419","name":"Green Brain (with Lee \"Scratch Perry\" & Yaadcore) - Subatomic Sound System Remix","registered_at":"2026-06-10T22:31:55Z","spotify_id":"1vxyVLMEtnHgdJqX0Zbt3n","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12a17146e0b2e75a69accdef856d78b7c59229106c4afef1b87dfef39b04c04. 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/1vxyVLMEtnHgdJqX0Zbt3n.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/1vxyVLMEtnHgdJqX0Zbt3n.
Green Brain (with Lee "Scratch Perry" & Yaadcore) - Subatomic Sound System Remix Dub
{"copyright_id":"0x8910fdef7f645e3e58f79c2e68a07f37c6283a37642b2424061d98bf2395e2e7","isrc":"QZTRX2316461","name":"Green Brain (with Lee \"Scratch Perry\" & Yaadcore) - Subatomic Sound System Remix Dub","registered_at":"2026-06-22T11:03:00Z","spotify_id":"12uKY4dVnWiT38Vd26YRcQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8910fdef7f645e3e58f79c2e68a07f37c6283a37642b2424061d98bf2395e2e7. 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/12uKY4dVnWiT38Vd26YRcQ.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/12uKY4dVnWiT38Vd26YRcQ.
Turntables on the Hudson: 10 Year Anniversary
{"copyright_id":"0x64b320bc269ee21b87b4120daf6614e90787980daa72b7aaf0c7a3eab5bab97b","isrc":"USCCW0810139","name":"Our Father / Our King","registered_at":"2026-06-25T20:53:48Z","spotify_id":"7GOPdtYEL8uo5Ujjp6nxwZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b320bc269ee21b87b4120daf6614e90787980daa72b7aaf0c7a3eab5bab97b. 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/7GOPdtYEL8uo5Ujjp6nxwZ.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/7GOPdtYEL8uo5Ujjp6nxwZ.
Amor (É Revolução) (feat. Dandara Manoela & Bnegão) - Subatomic Sound System Remix
Wasting Time - Subatomic Sound System Dub
{"copyright_id":"0xd4dfcaf8aa152e6c4f7ee0c68e723225fa1aae58ee435757fa7fa20b93294568","isrc":"USUG12301735","name":"Wasting Time - Subatomic Sound System Dub","registered_at":"2026-06-06T15:32:21Z","spotify_id":"682ruMEXAKMBGaYciJ0Q0n","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dfcaf8aa152e6c4f7ee0c68e723225fa1aae58ee435757fa7fa20b93294568. 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/682ruMEXAKMBGaYciJ0Q0n.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/682ruMEXAKMBGaYciJ0Q0n.
Times Like These - Lee “Scratch” Perry x Subatomic Sound System Dub
{"copyright_id":"0x8acb4d7ebe19d353609c5e9b5519c33e93a853a10e1eb05dbc897def0f45790e","isrc":"USUG12301737","name":"Times Like These - Lee “Scratch” Perry x Subatomic Sound System Dub","registered_at":"2026-06-06T18:39:22Z","spotify_id":"3pC8tmz3WHMdXSmU7M5ajj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acb4d7ebe19d353609c5e9b5519c33e93a853a10e1eb05dbc897def0f45790e. 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/3pC8tmz3WHMdXSmU7M5ajj.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/3pC8tmz3WHMdXSmU7M5ajj.
Traffic In The Sky - Subatomic Sound System Dub
Traffic In The Sky (Lee "Scratch" Perry x Subatomic Sound System Dub)
{"copyright_id":"0x585a48dbaa9d33483d0b9b5af0a69644f73dffb2674071d8def914adafe2f4dd","isrc":"USUG12301122","name":"Traffic In The Sky - Subatomic Sound System Dub","registered_at":"2026-06-09T11:41:01Z","spotify_id":"1cWiJtjHFvVDzqScg1kL8n","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585a48dbaa9d33483d0b9b5af0a69644f73dffb2674071d8def914adafe2f4dd. 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/1cWiJtjHFvVDzqScg1kL8n.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/1cWiJtjHFvVDzqScg1kL8n.
Happy & Deep Dark Dub - Subatomic Sound She Brings Joy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0d675b4736ba86d2d8ddda7eabb5a475dca95977147980980f3b1a98c5667d. 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/52y9XKUWl1OhKz5LgM5equ.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/52y9XKUWl1OhKz5LgM5equ.
{"copyright_id":"0xe8f85157b05a89b5ccaa5605cd58e4b967a1c8127dc7daa276b084b66e2048a3","isrc":"US38Y2414296","name":"Rockin' Like a Champion","registered_at":"2026-06-10T20:59:16Z","spotify_id":"0SS0TafMYrED6n9qSaUaRZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f85157b05a89b5ccaa5605cd58e4b967a1c8127dc7daa276b084b66e2048a3. 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/0SS0TafMYrED6n9qSaUaRZ.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/0SS0TafMYrED6n9qSaUaRZ.
{"copyright_id":"0x2f6f9e4a27666d7961eb13028a4ffdcc0a6cc5ee9960dbf7b7a0563a3c10adf0","isrc":"US38Y2407493","name":"Get High - Vocal Mix","registered_at":"2026-06-19T16:33:28Z","spotify_id":"17mlN2JwADOcXhZQw4w23b","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6f9e4a27666d7961eb13028a4ffdcc0a6cc5ee9960dbf7b7a0563a3c10adf0. 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/17mlN2JwADOcXhZQw4w23b.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/17mlN2JwADOcXhZQw4w23b.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082ef7d43530c97394a1941cb212133fc9eaaf5630cb3b3210cfbb03b459c7d8. 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/3POh7yAj6QwY68I3wWlmg6.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/3POh7yAj6QwY68I3wWlmg6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f06d128c9964bb05386500ac4e2283688a09014a6e8ec592611149f285b9e17. 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/2V3wZKo2VdXyWyZTTbC4xf.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/2V3wZKo2VdXyWyZTTbC4xf.
{"copyright_id":"0x58cee5bee141944456d5bc3f19a892346ca9be8063afa4b9afbe290bd6dbeb29","isrc":"US38Y2414297","name":"One Love","registered_at":"2026-06-23T16:49:27Z","spotify_id":"28WduDGi5Y3bzcWLRtqp7d","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cee5bee141944456d5bc3f19a892346ca9be8063afa4b9afbe290bd6dbeb29. 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/28WduDGi5Y3bzcWLRtqp7d.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/28WduDGi5Y3bzcWLRtqp7d.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273c5d4a55e62e2b7162a67de115db44e95da3136b9278dc06621f1b9fbe8797. 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/2CKOdRHP24lr2k0XfZQgMZ.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/2CKOdRHP24lr2k0XfZQgMZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c629d153a685f9156043b4214ca989fd0c71ffe49993dc478a1c53c85429fee. 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/48U8QihZR67hyjRczbhgBm.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/48U8QihZR67hyjRczbhgBm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e42126dd34b4fcce637400be78851791537adb64029251318cca739fc51969. 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/3IIpL2zTAbsdKQR9LyobwC.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/3IIpL2zTAbsdKQR9LyobwC.
{"copyright_id":"0x8e457d5a12c6080cd358cea95ceea62e536eaaffe1904cf65d531db534d18c92","isrc":"US38Y2414301","name":"Take Us Away - Bass Dub","registered_at":"2026-06-18T20:46:24Z","spotify_id":"0gcYeZTnsSajZzYhrGO3l7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e457d5a12c6080cd358cea95ceea62e536eaaffe1904cf65d531db534d18c92. 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/0gcYeZTnsSajZzYhrGO3l7.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/0gcYeZTnsSajZzYhrGO3l7.