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 0x86f70ac99ac3b1f2ac32eafc81742ac917eab34a72c7c6fea7a6e028c38d8510. 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/07bba466-328a-4e29-9b98-ab46f879f1f9.json and https://artists.proofprofile.net/proofs/artist/07bba466-328a-4e29-9b98-ab46f879f1f9.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 0x2eaa0dcbae71adb84c61b804080b053097b27d107239645a438d82edd8057104. 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/6nTT19gfooxkz86V5VsV3f.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/6nTT19gfooxkz86V5VsV3f.
Bitten By The Tailfly - Live At The Astoria
Don't Mix Your Drinks - Radio 1 Lamacq Session
Don't Mix Your Drinks - Live At The Astoria
Theme From Munroe Kelly - Noisebox EP Version
Press Your Lips (Newborn) - El Presidente Remix
Scattered Black And Whites - Live At The Astoria
George Lassoes The Moon - Live At The Astoria
George Lassoes The Moon - The Any Day Now EP Version
{"copyright_id":"0xfbe8a6464a4ef6d8be516cc1c47f091bdf617aef8060853d43a0b216524c5954","isrc":"GBBLK0300076","name":"Snooks (Progress Report)","registered_at":"2026-06-29T00:07:04Z","spotify_id":"4NQRGhUQViTwz1wBM5MYsS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe8a6464a4ef6d8be516cc1c47f091bdf617aef8060853d43a0b216524c5954. 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/4NQRGhUQViTwz1wBM5MYsS.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/4NQRGhUQViTwz1wBM5MYsS.
Fallen Angel - Live From Ancienne Belgique
Fugitive Motel - Live From Ancienne Belgique
Snooks (Progress Report) - Live From Ancienne Belgique
I've Got Your Number - Live From Ancienne Belgique
Leaders Of The Free World (Deluxe Edition)
Strangeways To Holcombe Hill In Four Minutes And Twenty Seconds - Intro
Station Approach - Live From Manchester Apollo
Leaders Of The Free World - Live From Manchester Apollo
Great Expectations - Live From London O2 Arena
Mexican Standoff - Live From Somerset House
Puncture Repair - Live From London O2 Arena
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0546c6b66f99d7f2923cb389cc159e368668c00d3ed6602e8ae0a945b16af32. 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/0RVB1BhcZ1AIhiUIGEwkyY.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/0RVB1BhcZ1AIhiUIGEwkyY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0546c6b66f99d7f2923cb389cc159e368668c00d3ed6602e8ae0a945b16af32. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2beIegjQwrrSiAfYCqs93b.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/2beIegjQwrrSiAfYCqs93b.
The Seldom Seen Kid (UK Standard Version)
We're Away - Album Version - UK Bonus Track
The Seldom Seen Kid (Bonus Tracks Version)
The Bones Of You - Live at Manchester Academy
Scattered Black and Whites - Live from London
Grounds For Divorce - Live at Porchester Hall
The Seldom Seen Kid (Live At Abbey Road)
Grounds For Divorce - Live At Abbey Road
An Audience With The Pope - Live At Abbey Road
The Loneliness of a Tower Crane Driver - Live At Abbey Road
{"copyright_id":"0x6d7e1e38ca4fbc7042216d79bca464104804dff10758c276b3bd2f1e0e0da4c5","isrc":"GBUM70900775","name":"One Day Like This - Live At Abbey Road","registered_at":"2026-06-29T00:00:58Z","spotify_id":"2lejWebsNX5n1axdAQvm4o","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7e1e38ca4fbc7042216d79bca464104804dff10758c276b3bd2f1e0e0da4c5. 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/2lejWebsNX5n1axdAQvm4o.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/2lejWebsNX5n1axdAQvm4o.
the birds - live from brussels forest national
lippy kids - live from brussels forest national
the night will always win - live from antwerp lotto arena
dear friends - live from antwerp lotto arena
open arms - live from antwerp lotto arena
open arms - live from st paul's cathedral/2011
jesus is a rochdale girl - live at blueprint studios
build a rocket boys! (dutch festival edition)
the night will always win - live from lowlands
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7624ca9427d8d3ae041903d9505314dfc217fb4697e6e2d83030d34159d87b12. 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/1BMw9tJurCX434CB02KTLN.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/1BMw9tJurCX434CB02KTLN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d15388bf6f34b3db5a6de5a69cea4a65e88c69d5fb8ec95f4288940253b60e. 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/5YQNpLRj0AuwT39LtOqo9Z.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/5YQNpLRj0AuwT39LtOqo9Z.
Open Arms (Live from St. Paul's Cathedral)
grounds for divorce - live at jodrell bank
scattered black and whites - live at jodrell bank
the loneliness of a tower crane driver - Live
The Take Off And Landing Of Everything (The Take Off and Landing of Everything)
Spotify Acoustic EP Live At Blueprint Studios
What Time Do You Call This? (From The Original “Man Up” Motion Picture Soundtrack)
Real Life (Angel) - Miura Keys Radio Edit
Magnificent (She Says) - Intro / Live From Spotify London
Magnificent (She Says) - Live From Spotify London
Gentle Storm - Intro / Live From Spotify London
My Sad Captains - Intro / Live From Spotify London
My Sad Captains - Live From Spotify London
Scattered Black and Whites - Intro / Live From Spotify London
Scattered Black and Whites - Live From Spotify London
Grounds for Divorce - Intro / Live From Spotify London
Grounds for Divorce - Live From Spotify London
What a Wonderful World - Intro / Live From Spotify London
What a Wonderful World - Live From Spotify London
Firebrand & Angel (Polaroids & Super 8s)
Firebrand & Angel (Polaroid & Super8 Remix)
Firebrand & Angel - Polaroid & Super8 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e2931cf8570326e32f2f0c382ec076c31c6fd34295e0e3be24f71d53615466. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0eDx3ucobu2tPlUvBowdL7.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/0eDx3ucobu2tPlUvBowdL7.
{"copyright_id":"0xad424d33eaef11f704f10f429e57bf3b44fb9b5d7a4f115d25c1f93eb36a5278","isrc":"GBUM71903546","name":"The Delayed 3:15","registered_at":"2026-06-29T00:14:12Z","spotify_id":"0Er3YHnMhHvjSyHusJpvpB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad424d33eaef11f704f10f429e57bf3b44fb9b5d7a4f115d25c1f93eb36a5278. 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/0Er3YHnMhHvjSyHusJpvpB.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/0Er3YHnMhHvjSyHusJpvpB.
{"copyright_id":"0xad1324188e930d6a0407afdc8cf0ada07e15965b46db93d631ddc61d3553fa7c","isrc":"GBUM71903547","name":"On Deronda Road","registered_at":"2026-06-28T23:56:33Z","spotify_id":"7alEKzQ5OEVZlNrceRrYnd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1324188e930d6a0407afdc8cf0ada07e15965b46db93d631ddc61d3553fa7c. 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/7alEKzQ5OEVZlNrceRrYnd.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/7alEKzQ5OEVZlNrceRrYnd.
Seven Veils - Acoustic / Live at The Ritz
Weightless - Acoustic / Live at The Ritz
Live at The Ritz - An Acoustic Performance
Magnificent (She Says) - Acoustic / Live at The Ritz
{"copyright_id":"0xddb5bb8daa226cea2a6ea2417e80a59bf20c1b9e0bfec3c6c2ae95410d16bd01","isrc":"GBUM72000059","name":"Newborn - Acoustic / Live at The Ritz","registered_at":"2026-06-29T00:07:40Z","spotify_id":"4ilicqCoBTOJKcSjVZuNZ6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb5bb8daa226cea2a6ea2417e80a59bf20c1b9e0bfec3c6c2ae95410d16bd01. 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/4ilicqCoBTOJKcSjVZuNZ6.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/4ilicqCoBTOJKcSjVZuNZ6.
Great Expectations - Intro / Live at The Ritz
Great Expectations - Acoustic / Live at The Ritz
A Choice of Three Drinks - Live at The Ritz
Scattered Black and Whites - Acoustic / Live at The Ritz
Grounds for Divorce - Intro / Live at The Ritz
Grounds for Divorce - Acoustic / Live at The Ritz
{"copyright_id":"0x3ea63d5e4f86972fb0803081f8c7c41e9d2dfb462901637c5d7050d702ce98de","isrc":"GBUM72105161","name":"Red Sky Radio (Baby Baby Baby)","registered_at":"2026-06-29T00:10:40Z","spotify_id":"0fPuqkKYjGHIcMR5AbvkQg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea63d5e4f86972fb0803081f8c7c41e9d2dfb462901637c5d7050d702ce98de. 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/0fPuqkKYjGHIcMR5AbvkQg.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/0fPuqkKYjGHIcMR5AbvkQg.
{"copyright_id":"0xebe73ba38449dc99c0f90f9526ef06e69a0e35ae8d8c1c0ae6c115daf0cc619f","isrc":"GBUM72107480","name":"What Am I Without You - Single Mix","registered_at":"2026-06-29T00:13:35Z","spotify_id":"1aWnNYMYSiPHOh3S5QWsLu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe73ba38449dc99c0f90f9526ef06e69a0e35ae8d8c1c0ae6c115daf0cc619f. 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/1aWnNYMYSiPHOh3S5QWsLu.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/1aWnNYMYSiPHOh3S5QWsLu.
Lovers' Leap - Live With The BBC Concert Orchestra
We Have All The Time In The World - Live With The BBC Concert Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92836bfc8673030766c28d9186f747ec8b86994280c170012410fe08828b9b5f. 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/5zCxHFdFyn3bi9hA9EQ6u3.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/5zCxHFdFyn3bi9hA9EQ6u3.
Things I've Been Telling Myself for Years
Things I’ve Been Telling Myself For Years
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92836bfc8673030766c28d9186f747ec8b86994280c170012410fe08828b9b5f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3i1UET9tzwwWc16bbp8iDH.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/3i1UET9tzwwWc16bbp8iDH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92836bfc8673030766c28d9186f747ec8b86994280c170012410fe08828b9b5f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7uoyS6mA4yC2AAbBLlzN0x.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/7uoyS6mA4yC2AAbBLlzN0x.
Jan Douwe Kroeske presents: The Best of 2 Meter Sessions 1987-2009
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e2931cf8570326e32f2f0c382ec076c31c6fd34295e0e3be24f71d53615466. 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/2SUZFLhXschpP4tOKAG63M.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/2SUZFLhXschpP4tOKAG63M.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e2931cf8570326e32f2f0c382ec076c31c6fd34295e0e3be24f71d53615466. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4KBDRtoEOQMZS90Xhk38Ag.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/4KBDRtoEOQMZS90Xhk38Ag.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e2931cf8570326e32f2f0c382ec076c31c6fd34295e0e3be24f71d53615466. 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/3V7sW6oWlpN1poM1vdfG2a.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/3V7sW6oWlpN1poM1vdfG2a.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e2931cf8570326e32f2f0c382ec076c31c6fd34295e0e3be24f71d53615466. 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/4QFXLUQCuAdZViCY557g7I.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/4QFXLUQCuAdZViCY557g7I.
Man Up (Original Motion Picture Soundtrack)
{"copyright_id":"0xf128cf31b33bd23c9de86872d3ca4106f4e6053fccd65d089384b3e3ff19880a","isrc":"GBUM71405087","name":"What Time Do You Call This?","registered_at":"2026-06-11T04:23:32Z","spotify_id":"0LiTJ56DIW3IrlZklNnTY9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf128cf31b33bd23c9de86872d3ca4106f4e6053fccd65d089384b3e3ff19880a. 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/0LiTJ56DIW3IrlZklNnTY9.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/0LiTJ56DIW3IrlZklNnTY9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e2931cf8570326e32f2f0c382ec076c31c6fd34295e0e3be24f71d53615466. 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/1lxCZrQjDy93TWTyuAIAzQ.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/1lxCZrQjDy93TWTyuAIAzQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e2931cf8570326e32f2f0c382ec076c31c6fd34295e0e3be24f71d53615466. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/37Sx3rM2ru7SF8ShjsDNi3.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/37Sx3rM2ru7SF8ShjsDNi3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e2931cf8570326e32f2f0c382ec076c31c6fd34295e0e3be24f71d53615466. 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/3lTGzC75xxER1yyMziMcz1.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/3lTGzC75xxER1yyMziMcz1.