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 0x55435d68ea94e94e86194e8622f7f96e6e9ac23217001fab26480beb6e15f78d. 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/53578199-8e17-41f0-bd97-56cf09f4af5c.json and https://artists.proofprofile.net/proofs/artist/53578199-8e17-41f0-bd97-56cf09f4af5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xdedd0cb3491428b05baa3c38211bc0a4ceabdd5e4b7dee9d114020c4518dd547","isrc":"USRC11901124","name":"All Your'n","registered_at":"2026-06-01T03:15:17Z","spotify_id":"0fCwTrRNfoNk962ati8n2K","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 0xdedd0cb3491428b05baa3c38211bc0a4ceabdd5e4b7dee9d114020c4518dd547. 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/0fCwTrRNfoNk962ati8n2K.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/0fCwTrRNfoNk962ati8n2K.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b84da21a55369bbaec407f27466d39b75f6649b1258783b41d9979b37f419e7. 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/19MkwMrRjO7773zpuGss1o.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/19MkwMrRjO7773zpuGss1o.
{"copyright_id":"0x8b2697102179f19b04afb8de63fd996a660bc3ef5e06ccf6967c531fc72d7da7","isrc":"QZ84K1800005","name":"Rock Salt and Nails (Live)","registered_at":"2026-06-01T07:55:20Z","spotify_id":"20dkebBtPR4AJ8vVos41Gw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2697102179f19b04afb8de63fd996a660bc3ef5e06ccf6967c531fc72d7da7. 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/20dkebBtPR4AJ8vVos41Gw.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/20dkebBtPR4AJ8vVos41Gw.
{"copyright_id":"0xaddd1e4c50a798453d3b3bf5dbe48c2842745897a0afd554bbfb070016244bed","isrc":"QZ84K1700002","name":"Feathered Indians","registered_at":"2026-06-01T03:18:27Z","spotify_id":"2tgQaL85WoRfgEa4hFQgrE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddd1e4c50a798453d3b3bf5dbe48c2842745897a0afd554bbfb070016244bed. 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/2tgQaL85WoRfgEa4hFQgrE.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/2tgQaL85WoRfgEa4hFQgrE.
Nose On The Grindstone (OurVinyl Sessions)
{"copyright_id":"0x8f796cec505912da5554b6110dd21e3e144e8d0ffa00e233e22c5dc27975f314","isrc":"QMEZE1719266","name":"Nose On The Grindstone (OurVinyl Sessions)","registered_at":"2026-06-01T03:58:09Z","spotify_id":"4a2uqVlpRChHj32EjJLu7G","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f796cec505912da5554b6110dd21e3e144e8d0ffa00e233e22c5dc27975f314. 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/4a2uqVlpRChHj32EjJLu7G.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/4a2uqVlpRChHj32EjJLu7G.
{"copyright_id":"0x5a1d8285f37fd04cb42fc0064b15ed58bc9704ff192abae89282cbdd2c28061d","isrc":"TCABB1121446","name":"Hard Times","registered_at":"2026-06-01T10:31:10Z","spotify_id":"0Uybrtb766jul6WpkjqbID","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1d8285f37fd04cb42fc0064b15ed58bc9704ff192abae89282cbdd2c28061d. 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/0Uybrtb766jul6WpkjqbID.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/0Uybrtb766jul6WpkjqbID.
Something Borrowed, Something New: A Tribute to John Anderson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a980fb97de79863436d6460e48a3cdd9995323bca8693a5838bf9c33be7716. 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/3UhGXH7S4384OGFgVJ4lSE.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/3UhGXH7S4384OGFgVJ4lSE.
Song While You're Away (From "Twisters: The Album")
{"copyright_id":"0xfe69c35e3b5a21330e512ee2f30012ba0f1fdb25c498973cf19ce1a9fe050454","isrc":"USAT22403724","name":"Song While You're Away (From \"Twisters: The Album\")","registered_at":"2026-06-27T02:32:59Z","spotify_id":"25XVLdwYaOb3cvKqlnsdjJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe69c35e3b5a21330e512ee2f30012ba0f1fdb25c498973cf19ce1a9fe050454. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/25XVLdwYaOb3cvKqlnsdjJ.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/25XVLdwYaOb3cvKqlnsdjJ.
Greatest Story Ever Told (feat. Tyler Childers) - Live at Radio City Music Hall, New York, NY 4/3/22
Time of the Preacher - Live at The Hollywood Bowl, Los Angeles, CA - April 30, 2023
Long Story Short: Willie Nelson 90 (Live At The Hollywood Bowl)
{"copyright_id":"0x12987da79f1471fd861a31bb568bb63e56febccdb1e708a0275d757101f8d626","isrc":"USQX92305740","name":"Time of the Preacher - Live at The Hollywood Bowl, Los Angeles, CA - April 30, 2023","registered_at":"2026-06-06T22:30:30Z","spotify_id":"4VEmUT5EZKzLTdBNtbwt7A","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12987da79f1471fd861a31bb568bb63e56febccdb1e708a0275d757101f8d626. 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/4VEmUT5EZKzLTdBNtbwt7A.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/4VEmUT5EZKzLTdBNtbwt7A.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0974a493149006bcb6f67600ad701a1b702d2502c45900e155d26b5af8b769b0. 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/0MEZnFwEu4MSB1ulmarWZ6.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/0MEZnFwEu4MSB1ulmarWZ6.
House Fire (feat. The Travelin' McCourys)
{"copyright_id":"0x20f7547d382486cff260b94cac3dceaa10fdf28c3f341e6329a8de483a17e08e","isrc":"USRC12002396","name":"House Fire (feat. The Travelin' McCourys)","registered_at":"2026-06-04T11:44:40Z","spotify_id":"0kD9ESXYhdNDYDDNq3MIjc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f7547d382486cff260b94cac3dceaa10fdf28c3f341e6329a8de483a17e08e. 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/0kD9ESXYhdNDYDDNq3MIjc.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/0kD9ESXYhdNDYDDNq3MIjc.
Highway 40 Blues (feat. Ricky Skaggs & Larry Cordle)
{"copyright_id":"0x30c9298446f4c4f98dbdc0b61152dcf8fabd22b628edb3413ba52eab027563ba","isrc":"USRC12002395","name":"Highway 40 Blues (feat. Ricky Skaggs & Larry Cordle)","registered_at":"2026-06-04T08:43:05Z","spotify_id":"5E5Ixhxfgqf4Ke0kgwXrhl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c9298446f4c4f98dbdc0b61152dcf8fabd22b628edb3413ba52eab027563ba. 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/5E5Ixhxfgqf4Ke0kgwXrhl.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/5E5Ixhxfgqf4Ke0kgwXrhl.
{"copyright_id":"0xfe69c35e3b5a21330e512ee2f30012ba0f1fdb25c498973cf19ce1a9fe050454","isrc":"USAT22403724","name":"Song While You're Away (From \"Twisters: The Album\")","registered_at":"2026-06-27T02:32:59Z","spotify_id":"0w7DSCKOfFwG5Hdrcr6DsH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe69c35e3b5a21330e512ee2f30012ba0f1fdb25c498973cf19ce1a9fe050454. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0w7DSCKOfFwG5Hdrcr6DsH.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/0w7DSCKOfFwG5Hdrcr6DsH.
Song While You're Away (From Twisters: The Album)
{"copyright_id":"0xfe69c35e3b5a21330e512ee2f30012ba0f1fdb25c498973cf19ce1a9fe050454","isrc":"USAT22403724","name":"Song While You're Away (From \"Twisters: The Album\")","registered_at":"2026-06-27T02:32:59Z","spotify_id":"3JqnF7oF4Xm6hO9F0EuPAo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe69c35e3b5a21330e512ee2f30012ba0f1fdb25c498973cf19ce1a9fe050454. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3JqnF7oF4Xm6hO9F0EuPAo.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/3JqnF7oF4Xm6hO9F0EuPAo.
{"copyright_id":"0xfe69c35e3b5a21330e512ee2f30012ba0f1fdb25c498973cf19ce1a9fe050454","isrc":"USAT22403724","name":"Song While You're Away (From \"Twisters: The Album\")","registered_at":"2026-06-27T02:32:59Z","spotify_id":"4fK60qd8vTZcTg4fGyXWrd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe69c35e3b5a21330e512ee2f30012ba0f1fdb25c498973cf19ce1a9fe050454. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4fK60qd8vTZcTg4fGyXWrd.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/4fK60qd8vTZcTg4fGyXWrd.