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 0x9ad02ab7fda1cfdd65546ed728b1f458116b7b3385cea440c50152f6bf70cdd4. 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/89537476-4782-469c-8e00-133d5af4ba8d.json and https://artists.proofprofile.net/proofs/artist/89537476-4782-469c-8e00-133d5af4ba8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xfead2d8b80f881f7a48c8d284cc59fb1f08ce5c4d7bdacaace73d2cab23fe5d5","isrc":"SEAOF0500066","name":"Blå blå ögon","registered_at":"2026-03-20T05:58:51Z","spotify_id":"63jO09WYTrstlhTjqmKPgL","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 0xfead2d8b80f881f7a48c8d284cc59fb1f08ce5c4d7bdacaace73d2cab23fe5d5. 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/63jO09WYTrstlhTjqmKPgL.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/63jO09WYTrstlhTjqmKPgL.
{"copyright_id":"0xed4884c2f345a527d59f0398fc5bb58a996ea996e77418d86c03aebaf7d690d9","isrc":"SEAMA0600684","name":"Jag undrar om du minns","registered_at":"2026-03-20T06:49:08Z","spotify_id":"0VlDWUEhEo87hBcUmREeRi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4884c2f345a527d59f0398fc5bb58a996ea996e77418d86c03aebaf7d690d9. 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/0VlDWUEhEo87hBcUmREeRi.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/0VlDWUEhEo87hBcUmREeRi.
{"copyright_id":"0x333a7e74fadfd5b2384be15196c8ccdc4fcc2cc0af47f5e0240f2445f9e685c7","isrc":"SEAMA0600689","name":"Min ängel","registered_at":"2026-03-20T05:59:13Z","spotify_id":"7FPCOy98zioklPIpw7Bz0Y","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333a7e74fadfd5b2384be15196c8ccdc4fcc2cc0af47f5e0240f2445f9e685c7. 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/7FPCOy98zioklPIpw7Bz0Y.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/7FPCOy98zioklPIpw7Bz0Y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7905de09d0de606071e92aced50f298b3c39c000d301e290681cf1e90b18777a. 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/5Gq8JpOdkmlTjYRvfaL7Y2.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/5Gq8JpOdkmlTjYRvfaL7Y2.
{"copyright_id":"0x67bee5622bf7906055ed13ee7fa181f1033a645214fef589fd6bc00cb45bdb9b","isrc":"SEAOF0105050","name":"She's so Good","registered_at":"2026-03-20T05:45:42Z","spotify_id":"1l8aChIGMfoLdAK1p14BwL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bee5622bf7906055ed13ee7fa181f1033a645214fef589fd6bc00cb45bdb9b. 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/1l8aChIGMfoLdAK1p14BwL.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/1l8aChIGMfoLdAK1p14BwL.
{"copyright_id":"0x5dafcfa8b6d8bac8117a375fc13279af1f6e8b7903010bea3c859e5e11c0b118","isrc":"SEAOF0105070","name":"Hela världen för mig","registered_at":"2026-03-20T06:06:06Z","spotify_id":"4OI3MUsMHUUBJJpGiTAwPY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dafcfa8b6d8bac8117a375fc13279af1f6e8b7903010bea3c859e5e11c0b118. 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/4OI3MUsMHUUBJJpGiTAwPY.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/4OI3MUsMHUUBJJpGiTAwPY.
{"copyright_id":"0x0d12f721eceddbc196b727ef8c3bfb65f4865e6a5c24be56ed1e2ba1b554f7e5","isrc":"SEAOF0105090","name":"Utan att säga farväl","registered_at":"2026-03-20T06:43:24Z","spotify_id":"1aANufXJ0ZDQIAIDXr2C4X","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d12f721eceddbc196b727ef8c3bfb65f4865e6a5c24be56ed1e2ba1b554f7e5. 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/1aANufXJ0ZDQIAIDXr2C4X.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/1aANufXJ0ZDQIAIDXr2C4X.
{"copyright_id":"0x44c522803ef84f90ade10f9b5e17818a05496ca9d157466997ddbb6db96b4bb6","isrc":"SEAOF0500102","name":"Tillbaka igen","registered_at":"2026-03-20T06:12:52Z","spotify_id":"5lGNp5KPvtYJpdDZQFiNEa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c522803ef84f90ade10f9b5e17818a05496ca9d157466997ddbb6db96b4bb6. 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/5lGNp5KPvtYJpdDZQFiNEa.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/5lGNp5KPvtYJpdDZQFiNEa.
{"copyright_id":"0x4b7de59de44b12508a18a7c8807e177988afcb5d246fdaf7ace8759b93593ff2","isrc":"SEAOF0500101","name":"Rock 'n' roll på min radio","registered_at":"2026-03-20T06:49:21Z","spotify_id":"5pOkwGPKaqnU1igZnMEMCx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7de59de44b12508a18a7c8807e177988afcb5d246fdaf7ace8759b93593ff2. 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/5pOkwGPKaqnU1igZnMEMCx.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/5pOkwGPKaqnU1igZnMEMCx.
{"copyright_id":"0x4e2efcf55e0106bd5b8f32f98aa24a02bfc76123173ae76a23d8104e579a57db","isrc":"SEAOF0500106","name":"En natt med dig","registered_at":"2026-03-20T06:12:51Z","spotify_id":"5InDS5VVBVGJfjKIdkCB58","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2efcf55e0106bd5b8f32f98aa24a02bfc76123173ae76a23d8104e579a57db. 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/5InDS5VVBVGJfjKIdkCB58.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/5InDS5VVBVGJfjKIdkCB58.
{"copyright_id":"0x6f3f5a155feaffb4bd5516523646c7b41d17c552ede9a1fb21457410fbe06e73","isrc":"SEAOF0500107","name":"Stopp och belägg","registered_at":"2026-03-20T06:12:46Z","spotify_id":"5Wwcgy7trvemPeI4eExPcn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3f5a155feaffb4bd5516523646c7b41d17c552ede9a1fb21457410fbe06e73. 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/5Wwcgy7trvemPeI4eExPcn.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/5Wwcgy7trvemPeI4eExPcn.
{"copyright_id":"0x801bf8babdd5fa842d504ddbcc726413fbec14cc8404680e066b9c7d9728c2e8","isrc":"SEAOF0500111","name":"Nyskild lonely & ensam","registered_at":"2026-03-20T06:12:42Z","spotify_id":"500sK0iSl4H8pyuNUtMYT9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801bf8babdd5fa842d504ddbcc726413fbec14cc8404680e066b9c7d9728c2e8. 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/500sK0iSl4H8pyuNUtMYT9.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/500sK0iSl4H8pyuNUtMYT9.
{"copyright_id":"0xa2b94c3207ed8388c08cec994d8a2d16bc6da7b26ddced9bc6c2e4dd4b8cad74","isrc":"SEAOF0500116","name":"Genom tårarna - For the Life of Me -","registered_at":"2026-03-20T06:13:48Z","spotify_id":"7lIYT8npgNZe0jWEUWfDjr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b94c3207ed8388c08cec994d8a2d16bc6da7b26ddced9bc6c2e4dd4b8cad74. 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/7lIYT8npgNZe0jWEUWfDjr.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/7lIYT8npgNZe0jWEUWfDjr.
{"copyright_id":"0x801bf8babdd5fa842d504ddbcc726413fbec14cc8404680e066b9c7d9728c2e8","isrc":"SEAOF0500111","name":"Nyskild lonely & ensam","registered_at":"2026-03-20T06:37:58Z","spotify_id":"4HlK9PEbzs6f1Fal1I6h9M","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801bf8babdd5fa842d504ddbcc726413fbec14cc8404680e066b9c7d9728c2e8. 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/4HlK9PEbzs6f1Fal1I6h9M.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/4HlK9PEbzs6f1Fal1I6h9M.
{"copyright_id":"0x32bbdbb6cb151840650522c0a2569ddc751f956e74df4a4aa1fd67ead05a969c","isrc":"SEAOF0302020","name":"Precis som förr","registered_at":"2026-03-20T05:34:44Z","spotify_id":"2H3wyyrENYoBdS7JiW4msj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bbdbb6cb151840650522c0a2569ddc751f956e74df4a4aa1fd67ead05a969c. 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/2H3wyyrENYoBdS7JiW4msj.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/2H3wyyrENYoBdS7JiW4msj.
{"copyright_id":"0x4b7de59de44b12508a18a7c8807e177988afcb5d246fdaf7ace8759b93593ff2","isrc":"SEAOF0500101","name":"Rock 'n' roll på min radio","registered_at":"2026-03-20T06:18:29Z","spotify_id":"51g0LMBeXDU6ZOTfTpBZqz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7de59de44b12508a18a7c8807e177988afcb5d246fdaf7ace8759b93593ff2. 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/51g0LMBeXDU6ZOTfTpBZqz.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/51g0LMBeXDU6ZOTfTpBZqz.
{"copyright_id":"0x801bf8babdd5fa842d504ddbcc726413fbec14cc8404680e066b9c7d9728c2e8","isrc":"SEAOF0500111","name":"Nyskild lonely & ensam","registered_at":"2026-03-20T06:18:26Z","spotify_id":"4mPrFHa9Af0LT4PwFnDKKq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801bf8babdd5fa842d504ddbcc726413fbec14cc8404680e066b9c7d9728c2e8. 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/4mPrFHa9Af0LT4PwFnDKKq.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/4mPrFHa9Af0LT4PwFnDKKq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7905de09d0de606071e92aced50f298b3c39c000d301e290681cf1e90b18777a. 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/2GSN9lJhknhXNcw0ir4sPH.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/2GSN9lJhknhXNcw0ir4sPH.
{"copyright_id":"0x9d09f9ddfe4158dda6c6598ef62ffa6447c83eff7aedac1550279ec6948b1419","isrc":"SEAOF0302120","name":"Den bäste man","registered_at":"2026-03-20T05:35:58Z","spotify_id":"6paaNhFjm3qvormimumUNl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d09f9ddfe4158dda6c6598ef62ffa6447c83eff7aedac1550279ec6948b1419. 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/6paaNhFjm3qvormimumUNl.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/6paaNhFjm3qvormimumUNl.
{"copyright_id":"0xad5c5389331ade9f7a46cdef9c9acf503a81edf3f64295996720be2aa5c2d1b1","isrc":"SEAMA0600680","name":"Tusen hjärtans hopp","registered_at":"2026-03-20T05:31:49Z","spotify_id":"3A1jcSvPgmLZyhmUpwUZhx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5c5389331ade9f7a46cdef9c9acf503a81edf3f64295996720be2aa5c2d1b1. 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/3A1jcSvPgmLZyhmUpwUZhx.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/3A1jcSvPgmLZyhmUpwUZhx.
{"copyright_id":"0x7c79569804c41bc803567719b9e93fbf9e93e3ce9072d14feadc9a8a11cca9ff","isrc":"SEAMA0800405","name":"Det är dags","registered_at":"2026-03-20T05:47:35Z","spotify_id":"4iV1dBwADWwIFqWOOUMPdb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c79569804c41bc803567719b9e93fbf9e93e3ce9072d14feadc9a8a11cca9ff. 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/4iV1dBwADWwIFqWOOUMPdb.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/4iV1dBwADWwIFqWOOUMPdb.
När kärleken föds (It Must Have Been Love)
Hur kan det regna från en himmel som är blå
{"copyright_id":"0xad5c5389331ade9f7a46cdef9c9acf503a81edf3f64295996720be2aa5c2d1b1","isrc":"SEAMA0600680","name":"Tusen hjärtans hopp","registered_at":"2026-01-28T19:50:34Z","spotify_id":"3d1RIvm7ztOH1J7xS7KOcc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5c5389331ade9f7a46cdef9c9acf503a81edf3f64295996720be2aa5c2d1b1. 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/3d1RIvm7ztOH1J7xS7KOcc.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/3d1RIvm7ztOH1J7xS7KOcc.
SOMMAR & SOL - Med Sveriges största dansband