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 0x62a131a097b650be821810081bc3883e4d45b00ee93b759480951007ca2f5c3b. 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/b9c87097-2f29-4644-9834-86e9dc285bb0.json and https://artists.proofprofile.net/proofs/artist/b9c87097-2f29-4644-9834-86e9dc285bb0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
7 Rings (Instrumental Cover of Ariana Grande)
7 Rings - Instrumental Cover of Ariana Grande
Monopoly (Cover of Ariana Grande & Victoria Monét)
Monopoly - Cover of Ariana Grande & Victoria Monét
{"copyright_id":"0x4e5becc3210d57a7c45b5c2a71fbb8e9e105623c45f0fbe2f8317c3c9ad09e9b","isrc":"FIUM71202968","name":"Mussolini perusdiini","registered_at":"2026-06-06T01:23:48Z","spotify_id":"2CgNLPfq44NtoDAzjyzbEy","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 0x4e5becc3210d57a7c45b5c2a71fbb8e9e105623c45f0fbe2f8317c3c9ad09e9b. 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/2CgNLPfq44NtoDAzjyzbEy.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/2CgNLPfq44NtoDAzjyzbEy.
{"copyright_id":"0x2b2cc2d73f9c58861386204d9fad6310946f95a1d7cb5e2a4ac4c8b556e4ce35","isrc":"FIUM71202969","name":"Myrkytyksen oireet","registered_at":"2026-06-08T00:50:05Z","spotify_id":"6oHKG2AY1al2xvaQ7VvJgi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2cc2d73f9c58861386204d9fad6310946f95a1d7cb5e2a4ac4c8b556e4ce35. 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/6oHKG2AY1al2xvaQ7VvJgi.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/6oHKG2AY1al2xvaQ7VvJgi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ffca99f69e157d846499d4f7e961026b346d5b5948965e93bfb87d9884aade. 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/7CzlEjiL67gCbmZROh6V3m.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/7CzlEjiL67gCbmZROh6V3m.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe8932d2eef69380bfb9c1082f2b8f85d262e9bf55781602443728cd48c1b25. 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/1CBklpmxKSEbItk696SIXJ.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/1CBklpmxKSEbItk696SIXJ.
{"copyright_id":"0x12d891c19229b1d61ecb15dc5d40d772702fc3342a962c2ab2bdd84a5f3275cc","isrc":"FIUM71202972","name":"Villi länsi","registered_at":"2026-06-27T08:22:37Z","spotify_id":"3EJLQGwHodNhKfAJyLtMiY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d891c19229b1d61ecb15dc5d40d772702fc3342a962c2ab2bdd84a5f3275cc. 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/3EJLQGwHodNhKfAJyLtMiY.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/3EJLQGwHodNhKfAJyLtMiY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b5494ff70f6b298b6385b31819644e0ec230c888c75fd88f46bc020df07b0f. 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/4098vBO5fsOkIbUql1ehaV.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/4098vBO5fsOkIbUql1ehaV.
{"copyright_id":"0xed9f89b35360729d4f21dd601f1b2836ede45afb3b51f2b7490076a6261a9f53","isrc":"FIUM71202973","name":"Viime yönä ennen kahta","registered_at":"2026-06-25T06:21:10Z","spotify_id":"3LH7LVVgf0fQW8dsBGrQbh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9f89b35360729d4f21dd601f1b2836ede45afb3b51f2b7490076a6261a9f53. 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/3LH7LVVgf0fQW8dsBGrQbh.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/3LH7LVVgf0fQW8dsBGrQbh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9e843578d0e1281a25514e4f4edbf915c4f3991e6d073cb348c19a5306775e. 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/6PIujBRqjyxJg38jkFJYbe.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/6PIujBRqjyxJg38jkFJYbe.
{"copyright_id":"0x74ac0729f9383f6f8aea71c20ffcc11e4cd65bb3b64a2e484b4d55d9b467698a","isrc":"FIUM71201495","name":"Luonas kai olla saan","registered_at":"2026-06-22T22:03:44Z","spotify_id":"4ICZG4KzTggCV7oOLFfVfo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ac0729f9383f6f8aea71c20ffcc11e4cd65bb3b64a2e484b4d55d9b467698a. 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/4ICZG4KzTggCV7oOLFfVfo.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/4ICZG4KzTggCV7oOLFfVfo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb826ce37ed3c73c75f7fca90a041520f8c261c23b0386c1225ca4fab922b305. 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/69S0ntvyQaoYxLSk91mMoM.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/69S0ntvyQaoYxLSk91mMoM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedde3ca9c0da92eae68e2cfd98f25b8220e9de882d3a4a2eb36bdfddc5d3f55d. 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/1I0d2I9GGa4u3tDPqrqLpf.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/1I0d2I9GGa4u3tDPqrqLpf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6056a48368e14eaf3569b45e3bfded5d539f3f00331e1a6ed2e6d5c326b1a10f. 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/3YF0ab5RjRUaAt6g7GOvY5.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/3YF0ab5RjRUaAt6g7GOvY5.
{"copyright_id":"0xb605c4f9e1ee93ca7fddaea4b259d423c279e32ce3b1f94deeecbef48707aaaf","isrc":"FIUM71202988","name":"Isoisän hinttipussi","registered_at":"2026-06-19T23:07:12Z","spotify_id":"5vniU6cWyEsRQNRi9GtRBO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb605c4f9e1ee93ca7fddaea4b259d423c279e32ce3b1f94deeecbef48707aaaf. 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/5vniU6cWyEsRQNRi9GtRBO.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/5vniU6cWyEsRQNRi9GtRBO.
{"copyright_id":"0x3631abf036e0d732fd4bfaf8c37bd9a3530ac0ec9a19d0cb7b20dc225a679fcb","isrc":"FIUM71202989","name":"Pyhä toimitus","registered_at":"2026-06-06T21:29:32Z","spotify_id":"3PDDAe53RJ1dziBTd3L48a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3631abf036e0d732fd4bfaf8c37bd9a3530ac0ec9a19d0cb7b20dc225a679fcb. 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/3PDDAe53RJ1dziBTd3L48a.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/3PDDAe53RJ1dziBTd3L48a.
{"copyright_id":"0x1b67ee9805f2ae25199ff05e5407a580a34f1011327ffef173fdc2265dfe7a5b","isrc":"FIUM71202990","name":"Musta aurinko nousee","registered_at":"2026-06-22T18:24:48Z","spotify_id":"4DgTK4QUMROb0UQMn5eqIu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b67ee9805f2ae25199ff05e5407a580a34f1011327ffef173fdc2265dfe7a5b. 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/4DgTK4QUMROb0UQMn5eqIu.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/4DgTK4QUMROb0UQMn5eqIu.
{"copyright_id":"0x38968c55ae3c2060604fd59dacce8bd7821a9e2cbd051142e1921ea3d0cfcc12","isrc":"FIUM71202991","name":"Rakkauden ammattilainen","registered_at":"2026-06-04T15:03:07Z","spotify_id":"3dUKvOvDeBOc5FdpREAnM6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38968c55ae3c2060604fd59dacce8bd7821a9e2cbd051142e1921ea3d0cfcc12. 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/3dUKvOvDeBOc5FdpREAnM6.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/3dUKvOvDeBOc5FdpREAnM6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7afe58396b4c1088a1d6d83381188c4250f9346decb7908e3527dc4ce46e59. 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/3McJxYhEChjchzHxrGAIPi.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/3McJxYhEChjchzHxrGAIPi.
{"copyright_id":"0x22bb46575357e5d0c68ab1d69e98e4d0039fee572ed6d60b412f613552a2f7d6","isrc":"FIUM71202996","name":"Puhelinpylvään henkinen elämä","registered_at":"2026-06-22T18:25:08Z","spotify_id":"0ThxMectjkYwbrzFagRhdS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bb46575357e5d0c68ab1d69e98e4d0039fee572ed6d60b412f613552a2f7d6. 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/0ThxMectjkYwbrzFagRhdS.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/0ThxMectjkYwbrzFagRhdS.