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 0x533432c43507d0c3a2a93b2108f81ac909f56f4948d1f799c2b952ca2cb6512b. 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/d25c00b0-4277-41eb-9951-99b47eff4861.json and https://artists.proofprofile.net/proofs/artist/d25c00b0-4277-41eb-9951-99b47eff4861.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x608a34af8e6f8e1a3c07d116c577cade42787095a35bcd4deb011f844e1cc7e8. 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/2FNYp8WnWlqkI4J0Zgea7a.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/2FNYp8WnWlqkI4J0Zgea7a.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31879286a8c2aeabe3796d3e4087fa9593643bd00a3ab2d039d83238f723843. 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/79dlQxvdsCDApoM8XChkpy.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/79dlQxvdsCDApoM8XChkpy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a2a259596146f2ec5660378f069716514ad36d540a8182ecb6cb11f0d050e4. 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/1cktZnxiONH0hR6Q3DKy8h.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/1cktZnxiONH0hR6Q3DKy8h.
{"copyright_id":"0x39d741cc68e89507b0ad4d12237f107988facac18e59239eee4899cfda14928d","isrc":"USUG12300804","name":"Man Made A Bar (feat. Eric Church)","registered_at":"2026-06-01T04:22:33Z","spotify_id":"73zawW1ttszLRgT9By826D","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d741cc68e89507b0ad4d12237f107988facac18e59239eee4899cfda14928d. 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/73zawW1ttszLRgT9By826D.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/73zawW1ttszLRgT9By826D.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3857797b87c8344d9f107fa31037258698db3ed4e5f36614780c348852d6764f. 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/0nGXi46VcQQ56ZJR428MKS.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/0nGXi46VcQQ56ZJR428MKS.
Roll Me Up and Smoke Me When I Die - Live
{"copyright_id":"0x49d2f7c4312aa560d885a6b0df291f6c5ca36359b581f588047f4360218e83d4","isrc":"QZ7KM2000069","name":"Roll Me Up and Smoke Me When I Die - Live","registered_at":"2026-06-01T15:15:33Z","spotify_id":"5iis9J2sptrUy0VIpFVIg1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d2f7c4312aa560d885a6b0df291f6c5ca36359b581f588047f4360218e83d4. 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/5iis9J2sptrUy0VIpFVIg1.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/5iis9J2sptrUy0VIpFVIg1.
What You See Ain't Always What You Get (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3857797b87c8344d9f107fa31037258698db3ed4e5f36614780c348852d6764f. 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/5YL4b69ecFCG6bfZIY2lI7.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/5YL4b69ecFCG6bfZIY2lI7.
Something Borrowed, Something New: A Tribute to John Anderson
{"copyright_id":"0x597b887aeb41f9d9edd192bce3be21bd7a8813e73670f79b5f3f6325e1c3f294","isrc":"USC4R2212389","name":"Mississippi Moon","registered_at":"2026-06-09T06:40:31Z","spotify_id":"2kevaKHBjU01GcAlJVsL8M","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597b887aeb41f9d9edd192bce3be21bd7a8813e73670f79b5f3f6325e1c3f294. 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/2kevaKHBjU01GcAlJVsL8M.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/2kevaKHBjU01GcAlJVsL8M.
Glen Campbell Duets: Ghost On The Canvas Sessions
{"copyright_id":"0x2e4a5bf34c6ad08d87110ae3d29f53cada194c9656c9add0c6f611befafdbfc3","isrc":"USSFR2411016","name":"Hold On Hope (with Eric Church)","registered_at":"2026-06-19T09:31:24Z","spotify_id":"7p1pq93LYZHWIBCIgeQUJt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4a5bf34c6ad08d87110ae3d29f53cada194c9656c9add0c6f611befafdbfc3. 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/7p1pq93LYZHWIBCIgeQUJt.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/7p1pq93LYZHWIBCIgeQUJt.
{"copyright_id":"0xf2e7edd86851f401aa2aab5c610b57476cbe1351a0cb65ddd6199a6ba7a22bab","isrc":"QZ7KM2000055","name":"Me And Paul - Live","registered_at":"2026-06-19T08:08:41Z","spotify_id":"0f1oFFdr5kRjLimlNP1woh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e7edd86851f401aa2aab5c610b57476cbe1351a0cb65ddd6199a6ba7a22bab. 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/0f1oFFdr5kRjLimlNP1woh.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/0f1oFFdr5kRjLimlNP1woh.
{"copyright_id":"0x065c624f6e3b57edcefbb2750733507b3a3ac2591d755537f0293b2ae1d958cf","isrc":"QZ7KM2000062","name":"Me And Bobby McGee - Live","registered_at":"2026-06-16T20:48:51Z","spotify_id":"6knIFpMcFh0MbhGk8JzBjx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065c624f6e3b57edcefbb2750733507b3a3ac2591d755537f0293b2ae1d958cf. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:26:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6knIFpMcFh0MbhGk8JzBjx.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/6knIFpMcFh0MbhGk8JzBjx.
{"copyright_id":"0xf31ebb15fa056dcf1374c50b11501e977614348fb0025d362d1d82d371582a3e","isrc":"QZ7KM2000067","name":"On The Road Again - Live","registered_at":"2026-06-01T21:27:55Z","spotify_id":"2PeYNGvlgtty3YxJUwEPFs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31ebb15fa056dcf1374c50b11501e977614348fb0025d362d1d82d371582a3e. 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/2PeYNGvlgtty3YxJUwEPFs.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/2PeYNGvlgtty3YxJUwEPFs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31ebb15fa056dcf1374c50b11501e977614348fb0025d362d1d82d371582a3e. 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/0vcJzE2LuNY9aoq2hdMjHZ.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/0vcJzE2LuNY9aoq2hdMjHZ.
When I See This Bar (with Eric Church) - Live
{"copyright_id":"0x09866a78e4361795a0706a7d911857b6fa56c5b042e82147e78d855cd500154d","isrc":"US6XF1700037","name":"When I See This Bar (with Eric Church) - Live","registered_at":"2026-06-06T21:03:13Z","spotify_id":"5LYPcvkDV0euORWfaRzFoJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09866a78e4361795a0706a7d911857b6fa56c5b042e82147e78d855cd500154d. 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/5LYPcvkDV0euORWfaRzFoJ.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/5LYPcvkDV0euORWfaRzFoJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80423a88adf688a7d58d50b23292a7fe506f3373784b4ab863589d51e3df2cc4. 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/1PLFJe7Xh9vzykOhISXhD9.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/1PLFJe7Xh9vzykOhISXhD9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd63aad256ef26da1cc13cc6c46250f081b8227565416778f37d4e6a5eed8d9. 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/1VP3Sl3UqXFDvWi8tOKle1.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/1VP3Sl3UqXFDvWi8tOKle1.