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 0xf877b59f69f2c7ec97c52a0885f582187c40897e8ed128085d7b0622630a2f59. 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/3fea0d3f-2c44-4b66-82ec-7daec1131d13.json and https://artists.proofprofile.net/proofs/artist/3fea0d3f-2c44-4b66-82ec-7daec1131d13.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 0xe3ac7233f54f57daa82df3344974643f2c0033148dbbb6abf803e10c5f11f9d3. 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/3ffvHLKwi96rno0dn1WLJF.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/3ffvHLKwi96rno0dn1WLJF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d889ab5154305c1b770dfd51e5cdef7b844282aa264a299cd4adebc21ab482. 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/4TAiUmnMwwx3LIrwSVnfG0.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/4TAiUmnMwwx3LIrwSVnfG0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19a92605e925ec11a6d82e53134a8907ab7bfcdddaf8a5616825aa8e583254f. 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/3RHHUGP9E1McRXqPVsaW66.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/3RHHUGP9E1McRXqPVsaW66.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccccdb45a10798c822d39fdd1e8d3bef93937001eb23ba55000fbc40faa231d2. 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/2IE89Kvg2DF4L2p0FrlXPQ.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/2IE89Kvg2DF4L2p0FrlXPQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7e4fea723131985de1b6f9b0f845875854ebaad8f4e3cd687b71aa6ee33581. 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/7brDMQ6SgOHog1jx29fpic.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/7brDMQ6SgOHog1jx29fpic.
{"copyright_id":"0xa19a92605e925ec11a6d82e53134a8907ab7bfcdddaf8a5616825aa8e583254f","isrc":"DECE72004955","name":"Squad X Showtime","registered_at":"2026-06-07T06:51:26Z","spotify_id":"4zd0LzAfGfnUoLRxDMwTeL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19a92605e925ec11a6d82e53134a8907ab7bfcdddaf8a5616825aa8e583254f. 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/4zd0LzAfGfnUoLRxDMwTeL.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/4zd0LzAfGfnUoLRxDMwTeL.
RLR2 - Runde 3 - Tag 5: Wenn Welten kollidieren
{"copyright_id":"0x3f1494450fbdebc05ca8f422446a7cb5e82b6fb6a03bb45ae4041771d2b51cee","isrc":"DEKF22401949","name":"Big Cash (feat. Rua, Aysar & 3imad)","registered_at":"2026-06-07T13:35:47Z","spotify_id":"2H7ylcg9WbR34GmZWIoZNw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1494450fbdebc05ca8f422446a7cb5e82b6fb6a03bb45ae4041771d2b51cee. 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/2H7ylcg9WbR34GmZWIoZNw.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/2H7ylcg9WbR34GmZWIoZNw.
On´s Melange Pas (feat. Rua, TANO77, CESO & Mocro)
{"copyright_id":"0x41482165623dd28fa01e15c9493306af59535febc86d5069c4083af98e4c3ea1","isrc":"DEKF22401798","name":"On´s Melange Pas (feat. Rua, TANO77, CESO & Mocro)","registered_at":"2026-06-06T04:28:47Z","spotify_id":"1xyEh396JDClxZBQkxEpP5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41482165623dd28fa01e15c9493306af59535febc86d5069c4083af98e4c3ea1. 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/1xyEh396JDClxZBQkxEpP5.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/1xyEh396JDClxZBQkxEpP5.
Immer Mehr (feat. Rua, CESO, Elisa Loah, Elly & Noor Reaga)
{"copyright_id":"0xeb118af9da4c9f5fb7a6e75e27eb4289a0d6bd759985dd316cb4d4bbc9fecff6","isrc":"DEKF22401673","name":"Immer Mehr (feat. Rua, CESO, Elisa Loah, Elly & Noor Reaga)","registered_at":"2026-06-07T01:53:48Z","spotify_id":"2IS8nieoLBC2JkRl9b5a7v","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb118af9da4c9f5fb7a6e75e27eb4289a0d6bd759985dd316cb4d4bbc9fecff6. 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/2IS8nieoLBC2JkRl9b5a7v.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/2IS8nieoLBC2JkRl9b5a7v.
{"copyright_id":"0x59aeb4b9fdeedcad89a0fb75c7c3be28f788f3f957f977bf36379a785058a15d","isrc":"DEUM72303193","name":"Kleiner Finger Schwur - Rua Remix","registered_at":"2026-06-06T16:39:39Z","spotify_id":"4jB4f9WYyHHmkeXAlkimoY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59aeb4b9fdeedcad89a0fb75c7c3be28f788f3f957f977bf36379a785058a15d. 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/4jB4f9WYyHHmkeXAlkimoY.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/4jB4f9WYyHHmkeXAlkimoY.
RLR2 - Runde 3 - Tag 7: Jenseits aller Grenzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b4b878e390dce0f2145e49918f2bdf1bac38f72c9159b01fa68e51ad6c7011. 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/4unJis9Germ9fAYMBOStBB.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/4unJis9Germ9fAYMBOStBB.
{"copyright_id":"0xeb118af9da4c9f5fb7a6e75e27eb4289a0d6bd759985dd316cb4d4bbc9fecff6","isrc":"DEKF22401673","name":"Immer Mehr (feat. Rua, CESO, Elisa Loah, Elly & Noor Reaga)","registered_at":"2026-06-07T01:53:48Z","spotify_id":"2zHz5HcnFSDe3sTWv6QFQX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb118af9da4c9f5fb7a6e75e27eb4289a0d6bd759985dd316cb4d4bbc9fecff6. 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/2zHz5HcnFSDe3sTWv6QFQX.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/2zHz5HcnFSDe3sTWv6QFQX.
{"copyright_id":"0x41482165623dd28fa01e15c9493306af59535febc86d5069c4083af98e4c3ea1","isrc":"DEKF22401798","name":"On´s Melange Pas (feat. Rua, TANO77, CESO & Mocro)","registered_at":"2026-06-06T04:28:47Z","spotify_id":"3p13GnfUtjKAzUWce2XCR7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41482165623dd28fa01e15c9493306af59535febc86d5069c4083af98e4c3ea1. 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/3p13GnfUtjKAzUWce2XCR7.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/3p13GnfUtjKAzUWce2XCR7.