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 0xa44bc089f137539766ab98c08fbe94c8c3eab884a24d60473d3d194389b79265. 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/4d644559-ee03-466b-9771-4d71df0a94ac.json and https://artists.proofprofile.net/proofs/artist/4d644559-ee03-466b-9771-4d71df0a94ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x9e5f299bc39509931fa1227ecb98030369c42c2da848dcb56ba29b07aad99bb4","isrc":"QM4TX2280473","name":"Duymuyor Beni Ankara","registered_at":"2026-06-04T09:15:24Z","spotify_id":"4NZPFLZoh7dBFhtC0KgGjM","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 0x9e5f299bc39509931fa1227ecb98030369c42c2da848dcb56ba29b07aad99bb4. 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/4NZPFLZoh7dBFhtC0KgGjM.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/4NZPFLZoh7dBFhtC0KgGjM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffecb48e95bde17552cd97e8ffc993e1a77c930628045146bdac43543c99a98. 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/5jwLJHwrrVc859gXj1pV7N.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/5jwLJHwrrVc859gXj1pV7N.
{"copyright_id":"0x9604123a94d1ab82e7cddbc63c85dbd8ce1ea84f875e0aeed16d5d4a9ee17ed3","isrc":"QM6MZ2253552","name":"Muhtemel Son","registered_at":"2026-06-04T11:50:32Z","spotify_id":"0VLlxoavZLH9yv26GvC8PR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9604123a94d1ab82e7cddbc63c85dbd8ce1ea84f875e0aeed16d5d4a9ee17ed3. 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/0VLlxoavZLH9yv26GvC8PR.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/0VLlxoavZLH9yv26GvC8PR.
{"copyright_id":"0xa0d3327caad2e8e97c6916b46fd1975a19dc36a65271f1e4ea2a8b8b4829c593","isrc":"QM6MZ2253553","name":"Yeryuzunde Bir Akşam","registered_at":"2026-06-04T15:24:26Z","spotify_id":"5TECGWEZko3DxDL2X30ZHU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d3327caad2e8e97c6916b46fd1975a19dc36a65271f1e4ea2a8b8b4829c593. 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/5TECGWEZko3DxDL2X30ZHU.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/5TECGWEZko3DxDL2X30ZHU.
{"copyright_id":"0xb6b9332fc46b44f910e5b815d78fc6fee38b0c6d844ce1b49258fb38ebc38b7d","isrc":"QM6MZ2253554","name":"Ölüm Bugün Uyu","registered_at":"2026-06-04T16:09:39Z","spotify_id":"38RbWH0hp5x1oumIBA9BVW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b9332fc46b44f910e5b815d78fc6fee38b0c6d844ce1b49258fb38ebc38b7d. 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/38RbWH0hp5x1oumIBA9BVW.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/38RbWH0hp5x1oumIBA9BVW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810a9cdd9bd9ad845e53c1dd462484666480862985e7ead6d69d2870e49fde2c. 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/4i0ZiGi7nqnLDPGh2lJ3WX.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/4i0ZiGi7nqnLDPGh2lJ3WX.
{"copyright_id":"0x5bfc9c216e19c48943e65b91b723aa55b67db713967fb5efa36fdc93ba5ba118","isrc":"QM6MZ2253560","name":"Mutsuzlar Güzel Güler","registered_at":"2026-06-05T12:53:53Z","spotify_id":"4a06QMoB39Z0sSAkELLLBO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfc9c216e19c48943e65b91b723aa55b67db713967fb5efa36fdc93ba5ba118. 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/4a06QMoB39Z0sSAkELLLBO.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/4a06QMoB39Z0sSAkELLLBO.
{"copyright_id":"0x62a01e6d123a5a85ef62837e1f02f2e225bac839a57ebe1401e8f1c50b2f6641","isrc":"QM6MZ2253559","name":"En Ölü Rockstar","registered_at":"2026-06-07T09:01:19Z","spotify_id":"7tSZPlfuDSWopRlSrLQ6RL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a01e6d123a5a85ef62837e1f02f2e225bac839a57ebe1401e8f1c50b2f6641. 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/7tSZPlfuDSWopRlSrLQ6RL.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/7tSZPlfuDSWopRlSrLQ6RL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f90b8a022a37e6298a89007196c9716d64778e59a8fe39978ead88d63e4f476. 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/5KxBvXOBiVPEBd3AlezKFC.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/5KxBvXOBiVPEBd3AlezKFC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc118c575439bf3c9cd57c64f9aa3b4c8191c4320493797b35f13f49dc1c87f3e. 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/5vTKVLdKojlQa7JdygJYl4.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/5vTKVLdKojlQa7JdygJYl4.
{"copyright_id":"0xa7feca9c5f261b103b0032504d326e01ad072b3ce0f8f37fe90b2c8002f7d170","isrc":"EEHU32001217","name":"Cehennemden Manzaralar","registered_at":"2026-06-08T14:12:25Z","spotify_id":"6k7AMhpNmWN39uu8RESdpO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7feca9c5f261b103b0032504d326e01ad072b3ce0f8f37fe90b2c8002f7d170. 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/6k7AMhpNmWN39uu8RESdpO.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/6k7AMhpNmWN39uu8RESdpO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e56d7637ce6788216b03222114df1786e9008d54d45fa2deb8d2008112b6273. 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/5Y5xU1eCWSh98DVsioReX8.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/5Y5xU1eCWSh98DVsioReX8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe667e853d13b4132717f1aabd9a654e2716d8dbc0b5a3776dd4d3cd9821cf80f. 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/3H6te9Msd2DC7mMDXTeVm5.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/3H6te9Msd2DC7mMDXTeVm5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039f1b66781640ab937fdeee3600c97184d099a8bbb016110a08dad7b2e0ca69. 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/3xU6c36Mdz3Jo9uVF3yIrR.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/3xU6c36Mdz3Jo9uVF3yIrR.
{"copyright_id":"0xbbf616f0024271bfba8d3f88a5b86c6e6185e2f46893052e80beecf9348df6a3","isrc":"EEHU32000931","name":"Gidin Başımdan","registered_at":"2026-06-08T14:02:26Z","spotify_id":"2y5l3yLvlMa9jLovAldl2A","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf616f0024271bfba8d3f88a5b86c6e6185e2f46893052e80beecf9348df6a3. 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/2y5l3yLvlMa9jLovAldl2A.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/2y5l3yLvlMa9jLovAldl2A.
{"copyright_id":"0xadde839759cb0e74d9c1196269ed1f0c1190905324b895ebada3927f8fcc4f2f","isrc":"EEHU32000826","name":"Düştün Gözümden","registered_at":"2026-06-21T08:27:49Z","spotify_id":"2PsXI6iLBRiMzScqTONqUP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadde839759cb0e74d9c1196269ed1f0c1190905324b895ebada3927f8fcc4f2f. 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/2PsXI6iLBRiMzScqTONqUP.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/2PsXI6iLBRiMzScqTONqUP.
{"copyright_id":"0x296f04e7a76356fe10b73ce8ba610a272f65d3d2699aa254ed4b62850d37ca02","isrc":"QM6MZ2306171","name":"bıçakları sırtımda hayatın","registered_at":"2026-06-05T17:59:36Z","spotify_id":"6tapRi4vVCQfxLIwyPrdIz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296f04e7a76356fe10b73ce8ba610a272f65d3d2699aa254ed4b62850d37ca02. 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/6tapRi4vVCQfxLIwyPrdIz.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/6tapRi4vVCQfxLIwyPrdIz.
{"copyright_id":"0xc214567ca9518e5bd53993add5dd17b94a7d08c3187adfcdc007a6d875ef6915","isrc":"EEHU32001139","name":"Karışsın Kanla Yağmur","registered_at":"2026-06-04T14:45:17Z","spotify_id":"1j8YfRADfFcOwVPbOqTqm2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc214567ca9518e5bd53993add5dd17b94a7d08c3187adfcdc007a6d875ef6915. 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/1j8YfRADfFcOwVPbOqTqm2.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/1j8YfRADfFcOwVPbOqTqm2.
{"copyright_id":"0x9e5f299bc39509931fa1227ecb98030369c42c2da848dcb56ba29b07aad99bb4","isrc":"QM4TX2280473","name":"Duymuyor Beni Ankara","registered_at":"2026-06-04T09:15:24Z","spotify_id":"7IorCPYSs5FVC6UOzXOwmN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5f299bc39509931fa1227ecb98030369c42c2da848dcb56ba29b07aad99bb4. 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/7IorCPYSs5FVC6UOzXOwmN.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/7IorCPYSs5FVC6UOzXOwmN.