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 0x581ef059788772abf6a632f17bbf7b0baf27d5bfa92ea1ab805accd3f1d62d91. 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/1f48488b-3fec-4d15-b311-d87da9791f18.json and https://artists.proofprofile.net/proofs/artist/1f48488b-3fec-4d15-b311-d87da9791f18.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 0x12420f5a04955c8859be9a089916153fd058fba03d5588912960a581b01568c6. 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/1yaEsGauwkaJsu2RO0rFLg.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/1yaEsGauwkaJsu2RO0rFLg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc934b5b21c25ac748aabca2a068f9a11bd1836b4895ac7479191ad003ec60b9. 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/3mxjYI7asL45mOaBmMDqK5.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/3mxjYI7asL45mOaBmMDqK5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f58cdd12e5f9f016746add7c18d4b479305727b37b81e7e84fffa4ba68c3a63. 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/5e7oKjcf8VuBQGgKg3SR8Y.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/5e7oKjcf8VuBQGgKg3SR8Y.
{"copyright_id":"0x2dae2a7f6e3802fb3a1c8fae30733d794a5027fc7d7e087f2336448bac910bd2","isrc":"KSA002300081","name":"Turn On (Feat. Jiselle)","registered_at":"2026-06-20T20:59:14Z","spotify_id":"0lunvnQTUsz1DzLAaAhmXF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dae2a7f6e3802fb3a1c8fae30733d794a5027fc7d7e087f2336448bac910bd2. 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/0lunvnQTUsz1DzLAaAhmXF.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/0lunvnQTUsz1DzLAaAhmXF.
{"copyright_id":"0x685d349739f597386de85e5dc3773ce8305ab4eb5c2e67ecb8a113cb7d1cf758","isrc":"KSA002201952","name":"Unreachable (feat. Milena)","registered_at":"2026-06-07T17:31:34Z","spotify_id":"4hHIKPMrkukqNBA377ddgI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685d349739f597386de85e5dc3773ce8305ab4eb5c2e67ecb8a113cb7d1cf758. 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/4hHIKPMrkukqNBA377ddgI.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/4hHIKPMrkukqNBA377ddgI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56d071cb7285ef01907b9a1c09eb612452a665f38045ac6137ba05b3c67c473. 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/3M2ttw7ucRZFMjBDtOHwkI.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/3M2ttw7ucRZFMjBDtOHwkI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d623553021cd2344e08b14e5e7125a49ebdb8f108af084b4ff482d6247b792. 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/41xFHQvzzK1od9ny35H31w.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/41xFHQvzzK1od9ny35H31w.
{"copyright_id":"0xd2b6c886df6580d2a17e9c41f09d2eccca8da181f6ec338e83271d9665578818","isrc":"KSA002201403","name":"Drivin' (Feat. Layone, BIG Naughty)","registered_at":"2026-06-05T19:41:56Z","spotify_id":"0RvBLaujbbruFj6T3hdlVA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b6c886df6580d2a17e9c41f09d2eccca8da181f6ec338e83271d9665578818. 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/0RvBLaujbbruFj6T3hdlVA.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/0RvBLaujbbruFj6T3hdlVA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b04192bfca4baeeca40fb34300f9f692939a4e1b0cd67506f83d0c547c851d. 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/6QhwLUGRdanON1epfFKQHc.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/6QhwLUGRdanON1epfFKQHc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0052502a98e45c323137b9271407fdcb0123fbc316a8c21a914cd6cc9fe210. 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/15D4iY3vp1lO871Ed37joF.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/15D4iY3vp1lO871Ed37joF.
Gas Station (feat. DEREK & Skinny Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1827c444f7809c63d63d62864549215780fafce98da0968e457ab43254c6439. 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/2sYSm57KSNxOF9gz3qWLMX.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/2sYSm57KSNxOF9gz3qWLMX.
I'm Sick (feat. Kid Milli, Lil tachi, Kim Seungmin, NO:EL, C JAMM)
{"copyright_id":"0xc49120571d45c2a9dc7d16fd215c5136607117da1d1e93ec037fabd4b22abb0f","isrc":"KRA381903240","name":"I'm Sick (feat. Kid Milli, Lil tachi, Kim Seungmin, NO:EL, C JAMM)","registered_at":"2026-06-06T02:28:46Z","spotify_id":"1CJweyedfMbIab2O3Jc8K8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49120571d45c2a9dc7d16fd215c5136607117da1d1e93ec037fabd4b22abb0f. 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/1CJweyedfMbIab2O3Jc8K8.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/1CJweyedfMbIab2O3Jc8K8.
Way (Feat. CHOILB, GIRIBOY, BIG Naughty, Kvsh, Kim Seungmin, OLNL, Kid Milli, THAMA)
{"copyright_id":"0x14e979e067a672efafc6825ba70dc94f9bad81c663bb406b61892d1fa3ca3b66","isrc":"KRA382203725","name":"Way (Feat. CHOILB, GIRIBOY, BIG Naughty, Kvsh, Kim Seungmin, OLNL, Kid Milli, THAMA)","registered_at":"2026-06-20T03:06:48Z","spotify_id":"0WHUg5Z0NZkeuPt5l4uMB9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e979e067a672efafc6825ba70dc94f9bad81c663bb406b61892d1fa3ca3b66. 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/0WHUg5Z0NZkeuPt5l4uMB9.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/0WHUg5Z0NZkeuPt5l4uMB9.
Let's Meet After Work (feat. Kim Seungmin)
{"copyright_id":"0x47533d065097f63b4a30fd48bcabd5f006a839278d10bd83320fcda4a590d88f","isrc":"KRA381903790","name":"Let's Meet After Work (feat. Kim Seungmin)","registered_at":"2026-06-20T22:39:03Z","spotify_id":"0U5GOwDu40ZbN6V8jgzIsL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47533d065097f63b4a30fd48bcabd5f006a839278d10bd83320fcda4a590d88f. 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/0U5GOwDu40ZbN6V8jgzIsL.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/0U5GOwDu40ZbN6V8jgzIsL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521010cc63626854c27e0fe8edd0ee6e7031fed6d8a3c2937c1fbf4321423bc2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4vFE2N3jJIql1HB1Ieyz8l.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/4vFE2N3jJIql1HB1Ieyz8l.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b65cd43d38c0db206b8a941b3560926a172e5153e3feb1b7f906325bb6ca10. 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/7zATOr1VnsxhEmBdGOfVVf.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/7zATOr1VnsxhEmBdGOfVVf.
vv 2 (Feat. Kid Milli, ChoiLB, Kim Seungmin, Hayake)
{"copyright_id":"0x1689b09ba64c89cfa780b48f6daed100f45290ee54f4ba63d7612ddf65ce0956","isrc":"KRA381802355","name":"vv 2 (Feat. Kid Milli, ChoiLB, Kim Seungmin, Hayake)","registered_at":"2026-06-09T02:07:21Z","spotify_id":"2A4rUzu7QmWswqaijUsmDu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1689b09ba64c89cfa780b48f6daed100f45290ee54f4ba63d7612ddf65ce0956. 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/2A4rUzu7QmWswqaijUsmDu.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/2A4rUzu7QmWswqaijUsmDu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599d7db30557e20b79e7a05585620f904e30c68740a33360681aa61278a29835. 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/7ikmONRRDAN8Qi6C0B2qSp.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/7ikmONRRDAN8Qi6C0B2qSp.
12:45 (Our Secret Diary X Kim Seungmin, Cosmic Boy)
{"copyright_id":"0xd74802d2765b22bb77760bea493f6e3c9b1867a31a4e63dc0bf10345c97464a5","isrc":"KRA382321334","name":"12:45 (Our Secret Diary X Kim Seungmin, Cosmic Boy)","registered_at":"2026-06-07T11:28:58Z","spotify_id":"6ouTnX0kt4EiXtiDlPXBjn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74802d2765b22bb77760bea493f6e3c9b1867a31a4e63dc0bf10345c97464a5. 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/6ouTnX0kt4EiXtiDlPXBjn.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/6ouTnX0kt4EiXtiDlPXBjn.
House (Prod. By dnss) (Feat. Kim Seungmin)
{"copyright_id":"0x56f05e2657f46b26ac7867da048008d3f89ad3ae5e9b42f56102dfc5a5548786","isrc":"KRA381801851","name":"House (Prod. By dnss) (Feat. Kim Seungmin)","registered_at":"2026-06-18T06:07:59Z","spotify_id":"5OdwXFww0JnOJznXNgmtrT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f05e2657f46b26ac7867da048008d3f89ad3ae5e9b42f56102dfc5a5548786. 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/5OdwXFww0JnOJznXNgmtrT.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/5OdwXFww0JnOJznXNgmtrT.