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 0x9af1c2fdc2ef7e0f8801b1cef3956ecf4c061e4fcc160f82bf7435713da95dab. 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/cc23e9d9-6674-481f-93bb-72522b8ec8cc.json and https://artists.proofprofile.net/proofs/artist/cc23e9d9-6674-481f-93bb-72522b8ec8cc.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 0x5060519ab5f49dff41451f1d7e6831b6d848a2fa5522c5e74e2c2b9c16a2a341. 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/6Pdk2zVvilmY8GALXc7ky6.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/6Pdk2zVvilmY8GALXc7ky6.
{"copyright_id":"0x3c5130d9ee5b1a6b43738fc9fef60d58274f244a406fe7b084af0bf966293afe","isrc":"NLT2H2400528","name":"Me Rehúso","registered_at":"2026-06-05T04:16:18Z","spotify_id":"0bPHJDNtSOdxiMfEGloB6C","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5130d9ee5b1a6b43738fc9fef60d58274f244a406fe7b084af0bf966293afe. 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/0bPHJDNtSOdxiMfEGloB6C.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/0bPHJDNtSOdxiMfEGloB6C.
{"copyright_id":"0x10a5f535b3b5a83bdfeaf2a74a5c9fbe3110ffbff50524bcbbc3b2b532329cf7","isrc":"NLT2H2400655","name":"La Bachata","registered_at":"2026-06-06T11:32:09Z","spotify_id":"7gaIdC65LkopMcFV62HJDb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a5f535b3b5a83bdfeaf2a74a5c9fbe3110ffbff50524bcbbc3b2b532329cf7. 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/7gaIdC65LkopMcFV62HJDb.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/7gaIdC65LkopMcFV62HJDb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633bf617103246473a684a9760a29a592cc0d68dd2535df6c671790f50db5ac6. 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/3Cm7CM1UzAGw13h5x8KJR8.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/3Cm7CM1UzAGw13h5x8KJR8.
{"copyright_id":"0xde82e2183622ded691bc0f8550adb98f6b59a2cf9baca5a1e8e1eeb869a99794","isrc":"BE8LH2200134","name":"The Dark Side Of Your Body","registered_at":"2026-06-06T21:41:39Z","spotify_id":"0UUipN0hMNz1hAwRNboVY3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde82e2183622ded691bc0f8550adb98f6b59a2cf9baca5a1e8e1eeb869a99794. 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/0UUipN0hMNz1hAwRNboVY3.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/0UUipN0hMNz1hAwRNboVY3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc2e9ba4d66b67a2ecc9909438473a0f5b54c6bbc615f0822a447971dc4320f. 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/78KcQNJ054TalF4qB0vwyg.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/78KcQNJ054TalF4qB0vwyg.
Lounge Covers Of Popular Songs 2023.03 - Chill Out Covers - Relax & Chill Covers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc2e9ba4d66b67a2ecc9909438473a0f5b54c6bbc615f0822a447971dc4320f. 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/5H3HJMwJvdMMlGjVJHKGpN.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/5H3HJMwJvdMMlGjVJHKGpN.
Lounge Covers Of Popular Songs 2023.01 - Chill Out Covers - Relax & Chill Covers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc2e9ba4d66b67a2ecc9909438473a0f5b54c6bbc615f0822a447971dc4320f. 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/6dI8voDiDRiIwBz3rxEq97.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/6dI8voDiDRiIwBz3rxEq97.
Restaurant Lounge 2023 Vol. 1 Background Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc2e9ba4d66b67a2ecc9909438473a0f5b54c6bbc615f0822a447971dc4320f. 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/7dKC0kph9oTxEvWvTbGfkL.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/7dKC0kph9oTxEvWvTbGfkL.
{"copyright_id":"0xde82e2183622ded691bc0f8550adb98f6b59a2cf9baca5a1e8e1eeb869a99794","isrc":"BE8LH2200134","name":"The Dark Side Of Your Body","registered_at":"2026-06-06T21:41:39Z","spotify_id":"126lnNpwYsvHR3ZWAzPBxE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde82e2183622ded691bc0f8550adb98f6b59a2cf9baca5a1e8e1eeb869a99794. 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/126lnNpwYsvHR3ZWAzPBxE.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/126lnNpwYsvHR3ZWAzPBxE.
Coffee Lounge 2023 Vol. 1 Background Music - Café Shop - Coffee House
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83346138ee9a5fd7c5b2537d74a78cee02e6df01974381c6cff0521154cfe0d9. 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/5gMHmUIHBbUMyvRr9gtg2L.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/5gMHmUIHBbUMyvRr9gtg2L.
Bar Lounge 2023 Vol. 1 Background Music (Music for Bars, Cocktail Bars or Coffee Bars)
{"copyright_id":"0xde82e2183622ded691bc0f8550adb98f6b59a2cf9baca5a1e8e1eeb869a99794","isrc":"BE8LH2200134","name":"The Dark Side Of Your Body","registered_at":"2026-06-06T21:41:39Z","spotify_id":"1QVIQKqr9BbWOChqbxEI8n","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde82e2183622ded691bc0f8550adb98f6b59a2cf9baca5a1e8e1eeb869a99794. 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/1QVIQKqr9BbWOChqbxEI8n.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/1QVIQKqr9BbWOChqbxEI8n.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc2e9ba4d66b67a2ecc9909438473a0f5b54c6bbc615f0822a447971dc4320f. 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/6SYPnxgZC2qMthJH2b19PN.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/6SYPnxgZC2qMthJH2b19PN.
Restaurant Lounge 2023 Vol. 2 Background Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc2e9ba4d66b67a2ecc9909438473a0f5b54c6bbc615f0822a447971dc4320f. 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/49eYY23myTxs6jP7l3IjhF.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/49eYY23myTxs6jP7l3IjhF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09b5f441e8466b4912dcd61f546d9167af3681281b82263fa748dacaed3cb08. 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/209f7qaX3mQO546Ow28kvO.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/209f7qaX3mQO546Ow28kvO.
{"copyright_id":"0xde82e2183622ded691bc0f8550adb98f6b59a2cf9baca5a1e8e1eeb869a99794","isrc":"BE8LH2200134","name":"The Dark Side Of Your Body","registered_at":"2026-06-06T21:41:39Z","spotify_id":"6BpX34XbHkZmk38zU4G4tQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde82e2183622ded691bc0f8550adb98f6b59a2cf9baca5a1e8e1eeb869a99794. 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/6BpX34XbHkZmk38zU4G4tQ.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/6BpX34XbHkZmk38zU4G4tQ.
New Years Lounge Music 2023 - Background Music - Dinner Music