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 0xbe186d655baec1715d3bc2ed318e49d6874604d79cc96ce27d83deb3679a1cf0. 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/5f6349ea-d1fd-454a-ace9-0787fb3abddf.json and https://artists.proofprofile.net/proofs/artist/5f6349ea-d1fd-454a-ace9-0787fb3abddf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ultraluminary (From the Netflix Film "Over the Moon")
Mystery of Me (from the Netflix Film "Found")
Mystery of Me - (from the Netflix Film "Found")
Hamilton (Original Broadway Cast Recording)
{"copyright_id":"0x1adfa761f68ad37b0345405031ddc5a302ce18f23beec77de0082dd83e72f287","isrc":"USAT21502596","name":"Alexander Hamilton","registered_at":"2026-06-01T05:48:17Z","spotify_id":"4TTV7EcfroSLWzXRY6gLv6","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 0x1adfa761f68ad37b0345405031ddc5a302ce18f23beec77de0082dd83e72f287. 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/4TTV7EcfroSLWzXRY6gLv6.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/4TTV7EcfroSLWzXRY6gLv6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf169be04044c73991bb9444ec0b3151350f9d2cafd1dfa7749c6417e45ec6333. 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/71X7bPDljJHrmEGYCe7kQ8.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/71X7bPDljJHrmEGYCe7kQ8.
{"copyright_id":"0x839c27c0a5a087193ac7e6cefbc2a737e0dc8b4c751a42dae068953e66cc83d1","isrc":"USAT21502624","name":"Schuyler Defeated","registered_at":"2026-06-01T14:11:50Z","spotify_id":"05bhmaAD1urZnQMWNd6p3S","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839c27c0a5a087193ac7e6cefbc2a737e0dc8b4c751a42dae068953e66cc83d1. 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/05bhmaAD1urZnQMWNd6p3S.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/05bhmaAD1urZnQMWNd6p3S.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe66f8b7eaa20e9fc333632f13efe248a30590812ccb5b54a79854619ba5b9c. 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/54Sc7mZQ1RM03STpk4SfaA.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/54Sc7mZQ1RM03STpk4SfaA.
{"copyright_id":"0xedfaabd856d11e377f99a60b666266262f580cf7a5ddb28dbd4fffd52984491f","isrc":"USAT21502612","name":"That Would Be Enough","registered_at":"2026-06-01T10:14:30Z","spotify_id":"6oF8ueLn5hIl4PRp17sxW6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfaabd856d11e377f99a60b666266262f580cf7a5ddb28dbd4fffd52984491f. 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/6oF8ueLn5hIl4PRp17sxW6.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/6oF8ueLn5hIl4PRp17sxW6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1535b3171f407cd6573b71eb4dbb4d3c97073f947f24932e9318f6ec6b389c3. 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/7qfoq1JFKBUEIvhqOHzuqX.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/7qfoq1JFKBUEIvhqOHzuqX.
{"copyright_id":"0xcff0bc30d81c47a5dc484ca738dabdfae158d7b9b4b7dc78e1aa47ebaff4209c","isrc":"USAT21502621","name":"Take a Break","registered_at":"2026-06-01T10:47:29Z","spotify_id":"2qFIJT5hjqaNFA1GKwl9me","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff0bc30d81c47a5dc484ca738dabdfae158d7b9b4b7dc78e1aa47ebaff4209c. 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/2qFIJT5hjqaNFA1GKwl9me.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/2qFIJT5hjqaNFA1GKwl9me.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f6a2b2c88957906f589f91631d274dd94726944bf5888210956f3b8c822409. 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/4B3qvzOMzLQXLeYgPsG3KA.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/4B3qvzOMzLQXLeYgPsG3KA.
{"copyright_id":"0xefb1bb46e06e8c72abded8fbb42b4c0298e3644041e357f95196acbcad1a94d7","isrc":"USAT21502635","name":"Stay Alive - Reprise","registered_at":"2026-06-01T16:20:51Z","spotify_id":"2ydKgIVZAQXeYLWtxU8DFS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb1bb46e06e8c72abded8fbb42b4c0298e3644041e357f95196acbcad1a94d7. 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/2ydKgIVZAQXeYLWtxU8DFS.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/2ydKgIVZAQXeYLWtxU8DFS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a92354f45642a4f30c6d91266a9c4955da893e68bd29354cfa24e63c886ebe7. 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/40LYL1Z6xgCn5cBybo5K0D.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/40LYL1Z6xgCn5cBybo5K0D.
{"copyright_id":"0xa41f15289ae3bc91c3182aa16c024d1f1ecc7992072b8d8d1c6814790437d8f2","isrc":"USAT21502639","name":"Best of Wives and Best of Women","registered_at":"2026-06-01T17:43:37Z","spotify_id":"1dZutYKh4BtPlxbC81wV34","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41f15289ae3bc91c3182aa16c024d1f1ecc7992072b8d8d1c6814790437d8f2. 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/1dZutYKh4BtPlxbC81wV34.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/1dZutYKh4BtPlxbC81wV34.
Camelot (The 2023 Broadway Cast Recording)
{"copyright_id":"0xaef3e56001f2ac19f7d9a473afd60444784b93ef3edd63b9311bc40d2262d210","isrc":"QMQYB2326203","name":"The Simple Joys of Maidenhood","registered_at":"2026-06-10T04:51:54Z","spotify_id":"6ZZ4QAgdBU2pWHorC6QEUV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef3e56001f2ac19f7d9a473afd60444784b93ef3edd63b9311bc40d2262d210. 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/6ZZ4QAgdBU2pWHorC6QEUV.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/6ZZ4QAgdBU2pWHorC6QEUV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce48021d2335cb7b96f37737f3e5e26c3e28d8cf53a2c79f940b508a66d3cae. 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/2tIRlpMAZzPC0hFO1H4KBD.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/2tIRlpMAZzPC0hFO1H4KBD.
{"copyright_id":"0x10b6c3dc2b90728f8a242040f2aae5969b05461f1b8aac0410cd35bbc8bae9e3","isrc":"QMQYB2326205","name":"Camelot (Reprise)","registered_at":"2026-06-19T12:44:43Z","spotify_id":"5ZVk7YK9wy3hIB8CU8UjfW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b6c3dc2b90728f8a242040f2aae5969b05461f1b8aac0410cd35bbc8bae9e3. 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/5ZVk7YK9wy3hIB8CU8UjfW.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/5ZVk7YK9wy3hIB8CU8UjfW.
{"copyright_id":"0x0b94e89b289e1832dbc7617a2f1aa946c4cee2f72819ed3ea663e2ed50a078fa","isrc":"QMQYB2326207","name":"The Lusty Month of May","registered_at":"2026-06-08T03:52:35Z","spotify_id":"24HEn0c2i2jgcGQAmdLuf2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b94e89b289e1832dbc7617a2f1aa946c4cee2f72819ed3ea663e2ed50a078fa. 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/24HEn0c2i2jgcGQAmdLuf2.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/24HEn0c2i2jgcGQAmdLuf2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330890db95e902a5e16f15306bf703fc45029981dea858000dd1e8bac9d95ca3. 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/2nQelXKFRV1Oj1rXUyd1r8.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/2nQelXKFRV1Oj1rXUyd1r8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7517ac5c430a9994073e44d630eae2e62277de76b62ba633e8a09472997986d1. 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/6GQUp8Qr3hJDxP0vYJ7Uuv.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/6GQUp8Qr3hJDxP0vYJ7Uuv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3233e00a046910a2359add1864c19a6658589f1c72c5266f6db35cc9373f7e. 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/4R1JPQAXcUYoihv0BQKV45.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/4R1JPQAXcUYoihv0BQKV45.
Into The Woods (2022 Broadway Cast Recording)
{"copyright_id":"0x41c16a0b3683f130a925b4a57bb5a858710c50b8a4a8e6c8e30b492c79110543","isrc":"USC4R2224087","name":"Cinderella At The Grave","registered_at":"2026-06-07T01:02:25Z","spotify_id":"1ETPMLWRvhx7hkjLrWiOGZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c16a0b3683f130a925b4a57bb5a858710c50b8a4a8e6c8e30b492c79110543. 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/1ETPMLWRvhx7hkjLrWiOGZ.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/1ETPMLWRvhx7hkjLrWiOGZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383dff4c7dffe87678499b642a642b8808b489257e1f95336978659661ca7313. 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/4PhH061O95YrjW3V5QVAHq.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/4PhH061O95YrjW3V5QVAHq.