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 0xf29564b24f70dbaa6ff6bca9f3f4ed03896fe58cd1685a9c115b376dd5e48aa0. 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/ed1caeb8-065c-48c5-9945-ae9011522954.json and https://artists.proofprofile.net/proofs/artist/ed1caeb8-065c-48c5-9945-ae9011522954.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Overwatch Collector's Edition Soundtrack
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 0x44f740953e5b5d0ab9122bd1aa55d08bacf5ada116003dafc0ba866dc4a911c0. 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/6Rp0gfbvzYcZjkX2e6taKk.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/6Rp0gfbvzYcZjkX2e6taKk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67fbe36e3c6555040de78683dd33e3f92765f3571bf7cdd41e9842ed2b32e5d. 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/1xXrejaKSq03nEr5CnsFWG.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/1xXrejaKSq03nEr5CnsFWG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91cf793407df6aec448f752608b7935e719e0a23ddf346186bc5f6d2b8bce25. 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/2EcjA9Fj2038mkDyTgTBzO.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/2EcjA9Fj2038mkDyTgTBzO.
World of Warcraft: The War Within Original Soundtrack
{"copyright_id":"0x8c5c141b1ef6341b07416d15edd301d64b618c8eabb52c5ba4cae5eb00317bbe","isrc":"USQ772400082","name":"The War Within","registered_at":"2026-06-07T13:04:05Z","spotify_id":"4AAniUit3q1MwcUJOPTLA0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5c141b1ef6341b07416d15edd301d64b618c8eabb52c5ba4cae5eb00317bbe. 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/4AAniUit3q1MwcUJOPTLA0.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/4AAniUit3q1MwcUJOPTLA0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc624f848ddbd03158c9eca437d6b0c556959f8ef409219390bdc4444401b3a. 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/4xIK89zX1lwdwg0QnhsQRl.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/4xIK89zX1lwdwg0QnhsQRl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdec34054245a489b3114c34f00150710013839038b3f62736a7c61756332e3e. 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/1HX9Xr0pnuShxarnrruMzh.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/1HX9Xr0pnuShxarnrruMzh.
{"copyright_id":"0x6e6ebab34410fe6d02994d0ffd0274a0aae0942df572dd75982c7e64805ca6d9","isrc":"USQ772400086","name":"To Face the Dark","registered_at":"2026-06-08T09:57:38Z","spotify_id":"1WCzRTIEQXeKRnVj1ejy67","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6ebab34410fe6d02994d0ffd0274a0aae0942df572dd75982c7e64805ca6d9. 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/1WCzRTIEQXeKRnVj1ejy67.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/1WCzRTIEQXeKRnVj1ejy67.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4f15b82661910cd660078bd6d748a9a3c7b76dd6a2986cf9937fe4beafef41. 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/18140PW8t8d8zsRfkNzXFT.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/18140PW8t8d8zsRfkNzXFT.
{"copyright_id":"0xa16cface09f93acf92dacd62bad454975b36603f177aaba1d4f5c3c15013ea6e","isrc":"USQ772400095","name":"Bloom in the Deeps","registered_at":"2026-06-09T07:09:23Z","spotify_id":"6KPKXp9tSCf9lavMHnFSKF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16cface09f93acf92dacd62bad454975b36603f177aaba1d4f5c3c15013ea6e. 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/6KPKXp9tSCf9lavMHnFSKF.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/6KPKXp9tSCf9lavMHnFSKF.
{"copyright_id":"0x729fdbdfcea015165c282c679f3055b08c62fa0e2fbcdf5a7b0276d5b3468abb","isrc":"USQ772400097","name":"Legacy of Arathor","registered_at":"2026-06-09T07:14:02Z","spotify_id":"0UatbcYaa9Mj9mU7BsPP9y","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729fdbdfcea015165c282c679f3055b08c62fa0e2fbcdf5a7b0276d5b3468abb. 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/0UatbcYaa9Mj9mU7BsPP9y.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/0UatbcYaa9Mj9mU7BsPP9y.
{"copyright_id":"0xcaeb61aea4331996f3400586ac554ad45b9d2a6528ca866d317c3f9c3adc1cde","isrc":"USQ772400098","name":"The Darkening of Beledar","registered_at":"2026-06-10T03:10:56Z","spotify_id":"2qooKukQCfgYWMoUUxeUJg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaeb61aea4331996f3400586ac554ad45b9d2a6528ca866d317c3f9c3adc1cde. 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/2qooKukQCfgYWMoUUxeUJg.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/2qooKukQCfgYWMoUUxeUJg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f68951263612461195b6bc488f7ffb3f209c46eb2da3f67d11da6ec78d35591. 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/15PKfs7Mj1KnHrLGCq5CV8.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/15PKfs7Mj1KnHrLGCq5CV8.
{"copyright_id":"0xdced4bba1ed9e1bfa4745f1ffc7e4a06c674fb5137a3247a8e949de9bfd39a7d","isrc":"USQ772400101","name":"Holders of Hope","registered_at":"2026-06-08T11:37:33Z","spotify_id":"7qPvkphVmZkJknCgmMIYzH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdced4bba1ed9e1bfa4745f1ffc7e4a06c674fb5137a3247a8e949de9bfd39a7d. 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/7qPvkphVmZkJknCgmMIYzH.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/7qPvkphVmZkJknCgmMIYzH.
{"copyright_id":"0x76f0191c22ddf7cc1cef5772866d6cbab5ac21a5a7678ff376f5ddcf42ec28ac","isrc":"USQ772300048","name":"A New Era","registered_at":"2026-06-09T06:56:41Z","spotify_id":"6haqH3BZ6vzSLZrVxUz9S1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f0191c22ddf7cc1cef5772866d6cbab5ac21a5a7678ff376f5ddcf42ec28ac. 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/6haqH3BZ6vzSLZrVxUz9S1.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/6haqH3BZ6vzSLZrVxUz9S1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf3083f0910abd86982b1de763dc5dd722faa330fca6479dee72553013de6a9. 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/3wkjQv4YmtGjPgw1gUaQax.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/3wkjQv4YmtGjPgw1gUaQax.
{"copyright_id":"0xa33aff204238cbad7af83d470f64b91d507e903cc5e9f3da6fc19f0ba01e5efa","isrc":"USQ772300050","name":"Zero Hour","registered_at":"2026-06-07T19:32:30Z","spotify_id":"2UJx1l3xmYaZcOjoVx9Kbf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33aff204238cbad7af83d470f64b91d507e903cc5e9f3da6fc19f0ba01e5efa. 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/2UJx1l3xmYaZcOjoVx9Kbf.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/2UJx1l3xmYaZcOjoVx9Kbf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290eabe452a4a284a6264c167f5a1b093a998833b679df5f7b6083b68c3a1659. 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/4bHWAZWUlIVEGRvQqXuXTP.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/4bHWAZWUlIVEGRvQqXuXTP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c8ff17f73d3c9fa696514197a6042454bd18b4ee9ea74b6f832bad81191a29. 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/6BbxAHE0sLy9cgCaCTvSpu.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/6BbxAHE0sLy9cgCaCTvSpu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3febf9bbb872a197ac11053596c0aa061a97e75e17230a0b6413212d1c437d3a. 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/5cXPykXhbIwIFaXwpqe1d2.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/5cXPykXhbIwIFaXwpqe1d2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c2a542ff9c7ac57d34f792258d46e89d53c5639988a2f93676f16e0f97f9c1. 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/5OUEiiVs2N2UoQqhEKTXnG.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/5OUEiiVs2N2UoQqhEKTXnG.