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 0x4d10e7613f4898d9adccfa36b9bc70ad2a00977516acdeb15c67f22c4ce344b7. 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/d57c9ed3-9bbe-473e-8069-ff7dfb61c02d.json and https://artists.proofprofile.net/proofs/artist/d57c9ed3-9bbe-473e-8069-ff7dfb61c02d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We Are The People (feat. Bono & The Edge) [Official UEFA EURO 2020 Song]
We Are The People (feat. Bono & The Edge) - Official UEFA EURO 2020 Song
{"copyright_id":"0xa53bb8426f9acdbd6e038c11d046e2a15eff887506abcd8d75d41b96befee37f","isrc":"NLM5S2101216","name":"We Are The People (feat. Bono & The Edge) - Official UEFA EURO 2020 Song","registered_at":"2026-06-01T21:54:08Z","spotify_id":"1LFVyrx9ZRJ2IyDLRPG8VK","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 0xa53bb8426f9acdbd6e038c11d046e2a15eff887506abcd8d75d41b96befee37f. 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/1LFVyrx9ZRJ2IyDLRPG8VK.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/1LFVyrx9ZRJ2IyDLRPG8VK.
We Are The People (Martin Garrix Remix) (feat. Bono & The Edge) - Official UEFA EURO 2020 Song
{"copyright_id":"0xf319db53929b1b8bcee9311e1c9acb2fdc6285b40286f9e5bb004873b846b14b","isrc":"NLM5S2101361","name":"We Are The People (Martin Garrix Remix) (feat. Bono & The Edge) - Official UEFA EURO 2020 Song","registered_at":"2026-06-04T14:11:36Z","spotify_id":"5J8Ky3NNT98Z8Mp1YQTDCZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf319db53929b1b8bcee9311e1c9acb2fdc6285b40286f9e5bb004873b846b14b. 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/5J8Ky3NNT98Z8Mp1YQTDCZ.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/5J8Ky3NNT98Z8Mp1YQTDCZ.
We Are the People - Official UEFA EURO 2020 Song
Kontor Top Of The Clubs – Best Of 2021 x Best Of 25 Years Kontor Records
{"copyright_id":"0xa53bb8426f9acdbd6e038c11d046e2a15eff887506abcd8d75d41b96befee37f","isrc":"NLM5S2101216","name":"We Are the People - Official UEFA EURO 2020 Song","registered_at":"2026-06-01T21:54:08Z","spotify_id":"2iL0W5qi0ivZ9WRXbZ74cS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53bb8426f9acdbd6e038c11d046e2a15eff887506abcd8d75d41b96befee37f. 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/2iL0W5qi0ivZ9WRXbZ74cS.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/2iL0W5qi0ivZ9WRXbZ74cS.
{"copyright_id":"0x8a9f4c71e2f3fbad6e4ed03ba0e0cc1bf5662de25d25417ceff63b85541f51b2","isrc":"GBF071301580","name":"Miss Sarajevo","registered_at":"2026-06-04T13:22:14Z","spotify_id":"6m6CGOVvaUpJ3owb6yJg1J","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9f4c71e2f3fbad6e4ed03ba0e0cc1bf5662de25d25417ceff63b85541f51b2. 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/6m6CGOVvaUpJ3owb6yJg1J.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/6m6CGOVvaUpJ3owb6yJg1J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ac9d21a0ae1c03791d4c42780910b6e62ff56bfe484f0adf632465cb4236ea. 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/48h3m0WRrJy05Is4SQuWwc.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/48h3m0WRrJy05Is4SQuWwc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfa9a157694bb08ea706568dc73a97270673c96c1dfa8d3f872e702e147f885. 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/4163s5AIcfezLq6kpncyvB.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/4163s5AIcfezLq6kpncyvB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bf67b7676ab1642c60dd3576aa401c2900293e684fb0f9cbf2b03a72a03fc2. 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/6Fr4xgbzqPFKTyLomvGKNe.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/6Fr4xgbzqPFKTyLomvGKNe.
Pavarotti & Friends Together For The Children Of Bosnia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b282d7c08a0931c813c6846a062b26558c4c71e3f1dcfabb77f806d0206ef0. 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/51ZOnbCHQnLbPXXOpDe62z.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/51ZOnbCHQnLbPXXOpDe62z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83a01d47488600a22a256c969cb6783ba66ea7b1ab540dae0a202917eaf912b. 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/0POn0ZkS5UbOpomtUt69uY.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/0POn0ZkS5UbOpomtUt69uY.
{"copyright_id":"0x47a11eb8f8f46706301411ade44597d0a7d005f615bb6904c4b8d2aca29e2e49","isrc":"GBF079541216","name":"_: Puccini: Nessun dorma [Turandot]","registered_at":"2026-06-06T16:08:28Z","spotify_id":"6k7O0MHVcxDfPOGIIIr71R","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a11eb8f8f46706301411ade44597d0a7d005f615bb6904c4b8d2aca29e2e49. 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/6k7O0MHVcxDfPOGIIIr71R.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/6k7O0MHVcxDfPOGIIIr71R.
{"copyright_id":"0xee892b5c0470ae5651a6ccef3147eaeffe131cbf2c386043c33d9b8651bf2c50","isrc":"GBAAN0201271","name":"Miss Sarajevo","registered_at":"2026-06-05T06:05:39Z","spotify_id":"49RXTEKqQBOYO7SjX1Uxb5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee892b5c0470ae5651a6ccef3147eaeffe131cbf2c386043c33d9b8651bf2c50. 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/49RXTEKqQBOYO7SjX1Uxb5.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/49RXTEKqQBOYO7SjX1Uxb5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b282d7c08a0931c813c6846a062b26558c4c71e3f1dcfabb77f806d0206ef0. 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/5a376mA6M7RgxwrZFfJOYf.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/5a376mA6M7RgxwrZFfJOYf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83a01d47488600a22a256c969cb6783ba66ea7b1ab540dae0a202917eaf912b. 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/10DYOFtWFL1Ldfk19gHCno.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/10DYOFtWFL1Ldfk19gHCno.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a11eb8f8f46706301411ade44597d0a7d005f615bb6904c4b8d2aca29e2e49. 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/0sc95TAN1KA9Uzn5pBWmk3.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/0sc95TAN1KA9Uzn5pBWmk3.