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 0x73dd5248792d3b2d056b241b20ad24e3b2788e441ec403769d872cf294f6f790. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78fe043f-7ee3-4857-92f3-ae059277e807.json and https://artists.proofprofile.net/proofs/artist/78fe043f-7ee3-4857-92f3-ae059277e807.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x5ba0f92bdf8fa96bb6bd010cb50d5c60ac126bb3b65661409d3352aadbe0a0e7","isrc":"USWFE2090770","name":"Christmas Morning (Live)","registered_at":"2026-06-10T13:41:43Z","spotify_id":"63gko793FjdpGAWqC43JwY","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 0x5ba0f92bdf8fa96bb6bd010cb50d5c60ac126bb3b65661409d3352aadbe0a0e7. 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/63gko793FjdpGAWqC43JwY.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/63gko793FjdpGAWqC43JwY.
{"copyright_id":"0x3a3f8e838b4391af6ec4c49ced36ee89b23b0ae8bfb1dbcc487975a12dda0691","isrc":"USWFE2090771","name":"Heart Sings Hallelujah (Live)","registered_at":"2026-06-10T13:41:31Z","spotify_id":"4mpiXwCBzIgN6FzCvRvxfe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3f8e838b4391af6ec4c49ced36ee89b23b0ae8bfb1dbcc487975a12dda0691. 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/4mpiXwCBzIgN6FzCvRvxfe.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/4mpiXwCBzIgN6FzCvRvxfe.
{"copyright_id":"0xf4e43e74efc6ed4a903beb8daaa54f9da81c061691d79968cb2e4836733d0810","isrc":"USWFE2090772","name":"Adore Him (Live)","registered_at":"2026-06-10T00:29:09Z","spotify_id":"1kfXnPXOOWzJZMNLyuvASE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e43e74efc6ed4a903beb8daaa54f9da81c061691d79968cb2e4836733d0810. 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/1kfXnPXOOWzJZMNLyuvASE.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/1kfXnPXOOWzJZMNLyuvASE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4868bf40803025487af17b9124c76698e33c8bc4586c21dac28b3bc1868a67. 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/0RTKb958jL95rRGoBckoda.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/0RTKb958jL95rRGoBckoda.
{"copyright_id":"0x05ba3b523aa248b14bfe6f0fd16d59d7f5ccdd8b614032854cff40cb0c6ea222","isrc":"USWFE2090774","name":"O Holy Night (Live)","registered_at":"2026-06-19T04:08:40Z","spotify_id":"3jksIorQL7N3Br1hTbNBTh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ba3b523aa248b14bfe6f0fd16d59d7f5ccdd8b614032854cff40cb0c6ea222. 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/3jksIorQL7N3Br1hTbNBTh.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/3jksIorQL7N3Br1hTbNBTh.
High King of Heaven / Jesus We Love You (Live)
{"copyright_id":"0xe0e943d6bd630e0a95d265f95f25b2b010d78ce7db2baa1c0e0b0c3f359e0b1d","isrc":"USWFE2090775","name":"High King of Heaven / Jesus We Love You (Live)","registered_at":"2026-06-08T17:16:21Z","spotify_id":"05qHXAbnRhOIxq1NtfEser","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e943d6bd630e0a95d265f95f25b2b010d78ce7db2baa1c0e0b0c3f359e0b1d. 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/05qHXAbnRhOIxq1NtfEser.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/05qHXAbnRhOIxq1NtfEser.
{"copyright_id":"0x09a54a8c04fbbabbffc5ba9a6bf3ead91d8c5efc422df491fa353421bed5690a","isrc":"USWFE1990607","name":"Now I See","registered_at":"2026-06-04T14:36:08Z","spotify_id":"0P4By14TCSDHAAhrHq1kJW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a54a8c04fbbabbffc5ba9a6bf3ead91d8c5efc422df491fa353421bed5690a. 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/0P4By14TCSDHAAhrHq1kJW.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/0P4By14TCSDHAAhrHq1kJW.
{"copyright_id":"0x74f3369a2ac0fc01305e35c292eee60411c55d555fc7de8749d3ba33d74a3f2e","isrc":"USWFE1990608","name":"Only Have One","registered_at":"2026-06-06T18:36:38Z","spotify_id":"2dXIEfokQ8vfPvjmzVi3la","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f3369a2ac0fc01305e35c292eee60411c55d555fc7de8749d3ba33d74a3f2e. 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/2dXIEfokQ8vfPvjmzVi3la.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/2dXIEfokQ8vfPvjmzVi3la.
{"copyright_id":"0xdd58ad47e5962cc4838ab65bea73fd8378b53b898bace5a6bd446b75faeb51dc","isrc":"USWFE1990609","name":"Believe in You","registered_at":"2026-06-07T14:48:14Z","spotify_id":"5jYUXZkksmXVA3Rtq10eCR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd58ad47e5962cc4838ab65bea73fd8378b53b898bace5a6bd446b75faeb51dc. 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/5jYUXZkksmXVA3Rtq10eCR.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/5jYUXZkksmXVA3Rtq10eCR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5b54af50143dd555816316d29bbe5f6b27e7f067235c41ee438e732d1384c7. 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/7GFyDUWAaHTkXGCGjXFVhz.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/7GFyDUWAaHTkXGCGjXFVhz.
{"copyright_id":"0xb36f4b4f7178dd02e6da3c060c4f53c9576ecaa1c6b27cb92b17b68b70f0d6c5","isrc":"USWFE1990611","name":"Always Good","registered_at":"2026-06-05T22:08:06Z","spotify_id":"1HkGqz3kCfYqg40hObdMEY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36f4b4f7178dd02e6da3c060c4f53c9576ecaa1c6b27cb92b17b68b70f0d6c5. 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/1HkGqz3kCfYqg40hObdMEY.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/1HkGqz3kCfYqg40hObdMEY.
{"copyright_id":"0xae199deb782f1f64f87e42d5ddd1bd32cc3853816e74699d3d1d3870509869cb","isrc":"USWFE1990612","name":"Tender Hurricane","registered_at":"2026-06-18T04:09:48Z","spotify_id":"5pw1wwbn6MKveqOxGcB8p1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae199deb782f1f64f87e42d5ddd1bd32cc3853816e74699d3d1d3870509869cb. 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/5pw1wwbn6MKveqOxGcB8p1.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/5pw1wwbn6MKveqOxGcB8p1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd791dba52373a9d555863545d070b8df0d4add1ca042e5b816a61c59292f5e55. 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/4aUhU7XYVZSOUwQcf56HEz.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/4aUhU7XYVZSOUwQcf56HEz.
{"copyright_id":"0x3c77faa81b8bcf6b06a76030e377cd15fe62833a8f2bd2c2b5ff2ceefc377338","isrc":"USWFE1990614","name":"Holding on to You","registered_at":"2026-06-05T22:08:30Z","spotify_id":"11HfWa2pahUsF7jDPhrcZ5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c77faa81b8bcf6b06a76030e377cd15fe62833a8f2bd2c2b5ff2ceefc377338. 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/11HfWa2pahUsF7jDPhrcZ5.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/11HfWa2pahUsF7jDPhrcZ5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d94a6a4bf9e2b4929a1b2835bf7b1c854ec31f9b9b2271130ad43db93de9c54. 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/1ZE2A03YVunPbYkAjP4AtX.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/1ZE2A03YVunPbYkAjP4AtX.
{"copyright_id":"0x9eec2e23d7d9db2de394fdec0c22f241f3b8dafbc11c9ccbe12cc690ef580e3b","isrc":"USWFE1990616","name":"Reign Above It All","registered_at":"2026-06-04T08:26:34Z","spotify_id":"1i6ZMoje2D23b73FvdvejJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eec2e23d7d9db2de394fdec0c22f241f3b8dafbc11c9ccbe12cc690ef580e3b. 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/1i6ZMoje2D23b73FvdvejJ.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/1i6ZMoje2D23b73FvdvejJ.
{"copyright_id":"0x09a54a8c04fbbabbffc5ba9a6bf3ead91d8c5efc422df491fa353421bed5690a","isrc":"USWFE1990607","name":"Now I See","registered_at":"2026-06-04T14:36:08Z","spotify_id":"7wkId23T47YOakZWQMknxk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a54a8c04fbbabbffc5ba9a6bf3ead91d8c5efc422df491fa353421bed5690a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7wkId23T47YOakZWQMknxk.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/7wkId23T47YOakZWQMknxk.
{"copyright_id":"0xa10b5b6a5bb2d85bfb57a752d4987499b5ec07e6d53844a8637a2bbf923ea3a7","isrc":"USWFE2291046","name":"Precious Blood","registered_at":"2026-06-04T15:43:08Z","spotify_id":"0jTiHdlp69YjmySSyyZGqL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10b5b6a5bb2d85bfb57a752d4987499b5ec07e6d53844a8637a2bbf923ea3a7. 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/0jTiHdlp69YjmySSyyZGqL.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/0jTiHdlp69YjmySSyyZGqL.