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 0xc0e0c53a4e00f68e4f224f15d29547ccf083f68e0e50996d28cbcd92a11471a6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd403e69-cabb-4aac-9afe-0e640e977faa.json and https://artists.proofprofile.net/proofs/artist/dd403e69-cabb-4aac-9afe-0e640e977faa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xe7b2baaafc10da36c1317a9f9f5f0f3f84abeb565549d29d7c7f46a7d471352f","isrc":"QZAKB2321831","name":"Like the Pink Noise","registered_at":"2026-06-18T11:21:18Z","spotify_id":"06CWVogwR0StRDIDNK67Nt","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 0xe7b2baaafc10da36c1317a9f9f5f0f3f84abeb565549d29d7c7f46a7d471352f. 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/06CWVogwR0StRDIDNK67Nt.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/06CWVogwR0StRDIDNK67Nt.
{"copyright_id":"0xe0f179a8ba446247df3e2e5320dd44c87dfcff69558a6c50040b3e77244de80a","isrc":"QZAKB2321832","name":"Wherever Pink Noise","registered_at":"2026-06-04T05:35:58Z","spotify_id":"2JlhCTwDDUdUr5iDknnpF7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f179a8ba446247df3e2e5320dd44c87dfcff69558a6c50040b3e77244de80a. 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/2JlhCTwDDUdUr5iDknnpF7.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/2JlhCTwDDUdUr5iDknnpF7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296bfe5936c458013ac328f36cdcb0c27d4249e6245062f979b3402a246a9ef0. 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/41HbIn63aIzkphf8x8UkD6.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/41HbIn63aIzkphf8x8UkD6.
{"copyright_id":"0xcbaebe20c638c9f6ea327912338f3dac0206b169d662432ffeda3dc885e1319b","isrc":"QZAKB2321834","name":"Pinkest Pink","registered_at":"2026-06-04T06:51:35Z","spotify_id":"6ooIxUGKePKnVwAivRyAzI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbaebe20c638c9f6ea327912338f3dac0206b169d662432ffeda3dc885e1319b. 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/6ooIxUGKePKnVwAivRyAzI.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/6ooIxUGKePKnVwAivRyAzI.
{"copyright_id":"0xce6d25f8b907baf35cdc381208e2bf7379f7958454de01174fb145bbccc1786d","isrc":"QZAKB2321835","name":"Pink Elephant Noise","registered_at":"2026-06-01T19:08:30Z","spotify_id":"7BKzn2sBaZ71mdL7bZbuB8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6d25f8b907baf35cdc381208e2bf7379f7958454de01174fb145bbccc1786d. 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/7BKzn2sBaZ71mdL7bZbuB8.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/7BKzn2sBaZ71mdL7bZbuB8.
{"copyright_id":"0x1f7c740dfa31601bbbe772c4312f4d644e383636eb1bf7f4377de3ff3e0f8418","isrc":"QZAKB2404258","name":"White Noise Cove","registered_at":"2026-06-01T11:03:42Z","spotify_id":"4qzXObJl9W62AYhPUWbt8M","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7c740dfa31601bbbe772c4312f4d644e383636eb1bf7f4377de3ff3e0f8418. 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/4qzXObJl9W62AYhPUWbt8M.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/4qzXObJl9W62AYhPUWbt8M.
{"copyright_id":"0x074aa6edee6b196ee5f54f37e5deee4f40926501051b72f78797c61fd797fc22","isrc":"QZAKB2349152","name":"Green Noise for the Sleep Deprived","registered_at":"2026-06-04T06:56:19Z","spotify_id":"0EaYx95X7V4oQyZr4MkIr5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074aa6edee6b196ee5f54f37e5deee4f40926501051b72f78797c61fd797fc22. 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/0EaYx95X7V4oQyZr4MkIr5.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/0EaYx95X7V4oQyZr4MkIr5.
{"copyright_id":"0x6229b8f3b609f769ebd5649627fcea78f335da898c6189a685e03260c9f9488e","isrc":"QZAKB2168349","name":"Sleeping Pink Noise","registered_at":"2026-06-05T06:53:15Z","spotify_id":"6ISpESzu6etXUOE0ColFjE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6229b8f3b609f769ebd5649627fcea78f335da898c6189a685e03260c9f9488e. 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/6ISpESzu6etXUOE0ColFjE.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/6ISpESzu6etXUOE0ColFjE.
{"copyright_id":"0x39ae9db7d098eace5bf6a3257e6101c606ad273b8799bddaf4619c67d996dc99","isrc":"QZAKB2168350","name":"Calming Pink Noise River","registered_at":"2026-06-04T12:10:12Z","spotify_id":"4eGNv9b7JBePQH8cuvDIrz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ae9db7d098eace5bf6a3257e6101c606ad273b8799bddaf4619c67d996dc99. 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/4eGNv9b7JBePQH8cuvDIrz.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/4eGNv9b7JBePQH8cuvDIrz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8afb6435593824d3c89e0e86cf3828842486489a97c4875be95d19268b6bc8b. 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/4GDCo4w7u47ITYx4mx791J.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/4GDCo4w7u47ITYx4mx791J.
{"copyright_id":"0x8929a936c137ef7e1750e02d20d413a87f1e6db43f4b9916a875559dbef43c86","isrc":"QZAKB2165834","name":"Pink Noise for Snoozing","registered_at":"2026-06-04T11:59:34Z","spotify_id":"2Jt50RFGQHok6b1ITsmYce","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8929a936c137ef7e1750e02d20d413a87f1e6db43f4b9916a875559dbef43c86. 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/2Jt50RFGQHok6b1ITsmYce.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/2Jt50RFGQHok6b1ITsmYce.
{"copyright_id":"0x4a20db85d5a977d52c434be826911f4c550da63a50274c6cffaa9c47788a4d8a","isrc":"QZAKB2155687","name":"Sleeper's Pink Noise","registered_at":"2026-06-05T20:47:32Z","spotify_id":"0IbOrkKXAzaMsNNqZsJasj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a20db85d5a977d52c434be826911f4c550da63a50274c6cffaa9c47788a4d8a. 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/0IbOrkKXAzaMsNNqZsJasj.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/0IbOrkKXAzaMsNNqZsJasj.
{"copyright_id":"0xb01d4590cc6a87f3d89288044ae7d88a6907c6e2d72f78889d999e63459aa95a","isrc":"QZAKB2155688","name":"Hawaiian Pink Noise","registered_at":"2026-06-09T15:37:03Z","spotify_id":"6DCEqcbnneV1rnLZqjZJoN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01d4590cc6a87f3d89288044ae7d88a6907c6e2d72f78889d999e63459aa95a. 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/6DCEqcbnneV1rnLZqjZJoN.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/6DCEqcbnneV1rnLZqjZJoN.