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 0x70357d84c3f5dbc373373244f3781279a744904613f21e08775b3e4ad35faa29. 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/07dc4095-6a62-44f1-936a-ea5335d94dbc.json and https://artists.proofprofile.net/proofs/artist/07dc4095-6a62-44f1-936a-ea5335d94dbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x210be3de1e9d5d341eea1e4cd3c60f44ee3facac1599efbda42fb34b6d468709","isrc":"USCA20702618","name":"Either Or Both","registered_at":"2026-06-29T20:04:00Z","spotify_id":"568e3lNvp1XElrMIOPjL5V","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 0x210be3de1e9d5d341eea1e4cd3c60f44ee3facac1599efbda42fb34b6d468709. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/568e3lNvp1XElrMIOPjL5V.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/568e3lNvp1XElrMIOPjL5V.
{"copyright_id":"0x9bf48629e7a8fde5a002c0d62fb366ca1064ebb3f5d103187c8dcc22c484a9a2","isrc":"USCA27400104","name":"I Don't Want The Night To End","registered_at":"2026-06-29T20:03:46Z","spotify_id":"4eFPKQE0x9l5pfARPiZDhV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf48629e7a8fde5a002c0d62fb366ca1064ebb3f5d103187c8dcc22c484a9a2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4eFPKQE0x9l5pfARPiZDhV.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/4eFPKQE0x9l5pfARPiZDhV.
Drink Up The Melody (Bite The Dust, Blues)
There's a Boat That's Leavin' Soon for New York
It's All In The Game - 2008/Live At Woodstock
If I Can Just Get Through Tonight - 2008/Live At Woodstock
The Other Girlfriend - 2008/Live At Woodstock
Piece Of My Heart - 2008/Live At Woodstock
Rockin' Pneumonia And The Boogie Woogie Flu - 2008/Live At Woodstock
With A Song In My Heart - 2008/Live At Woodstock
It's All In The Game (2008/Live At Woodstock)
Autobiography (Shine, Shine, Shine) - Live
Gone at Last (with Phoebe Snow & The Jessy Dixon Singers)
{"copyright_id":"0x62b2b0dd28a08c863b43007572009b6ab88074151ff838297656684a2bcabd5e","isrc":"USSM11002306","name":"Gone at Last (with Phoebe Snow & The Jessy Dixon Singers)","registered_at":"2026-06-05T11:28:09Z","spotify_id":"5oROkcna6Wods0AJXmRzS0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b2b0dd28a08c863b43007572009b6ab88074151ff838297656684a2bcabd5e. 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/5oROkcna6Wods0AJXmRzS0.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/5oROkcna6Wods0AJXmRzS0.
ドライブが楽しくなる洋楽ヒッツ！70年代 POP
{"copyright_id":"0xb5566f96a06f3b1ea7b4f15f9345fb3c4dbfffec0a34e871e325f9cd77fff8a5","isrc":"USSH49400001","name":"Poetry Man","registered_at":"2026-06-06T03:08:28Z","spotify_id":"1wgx4kThXyz4m6usm0j0gJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5566f96a06f3b1ea7b4f15f9345fb3c4dbfffec0a34e871e325f9cd77fff8a5. 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/1wgx4kThXyz4m6usm0j0gJ.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/1wgx4kThXyz4m6usm0j0gJ.
{"copyright_id":"0xb5566f96a06f3b1ea7b4f15f9345fb3c4dbfffec0a34e871e325f9cd77fff8a5","isrc":"USSH49400001","name":"Poetry Man","registered_at":"2026-06-06T03:08:28Z","spotify_id":"7peP5eNPRYiS8z72eHoVj6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5566f96a06f3b1ea7b4f15f9345fb3c4dbfffec0a34e871e325f9cd77fff8a5. 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/7peP5eNPRYiS8z72eHoVj6.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/7peP5eNPRYiS8z72eHoVj6.
{"copyright_id":"0x62b2b0dd28a08c863b43007572009b6ab88074151ff838297656684a2bcabd5e","isrc":"USSM11002306","name":"Gone at Last (with Phoebe Snow & The Jessy Dixon Singers)","registered_at":"2026-06-05T11:28:09Z","spotify_id":"3Oi8bgcQzG8qM4uZhMsGrC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b2b0dd28a08c863b43007572009b6ab88074151ff838297656684a2bcabd5e. 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/3Oi8bgcQzG8qM4uZhMsGrC.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/3Oi8bgcQzG8qM4uZhMsGrC.