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 0xa464077cb672b71e427f5b5164c08b2098515b4201bcf5a8c24dd02041e518f1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb7660cf-5512-4d81-bc13-74d3d311d6ce.json and https://artists.proofprofile.net/proofs/artist/fb7660cf-5512-4d81-bc13-74d3d311d6ce.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 0xf68d941096baf26e57a5d1dedb9d0052827d6ee00b8fce1d53ec56491c67974a. 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/7MJPdQG7vz2LanUrsVuyJN.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/7MJPdQG7vz2LanUrsVuyJN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58158d53a2e62fd0a99cf216ac12552c7aa4096e8dda0a1e188470c14e0a831. 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/3J8EHJZWJPXyqjUkl80wW2.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/3J8EHJZWJPXyqjUkl80wW2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2015a78d1838fdac9bbc8ceb64968b42d0f0fa8e805a77112e969c0e31928b96. 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/2eRl9DSjmKDMJYojDSR8rG.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/2eRl9DSjmKDMJYojDSR8rG.
HB20 2 (LQ) - Bonus Track (feat. Flacko & C'97)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28861ae1cf78ff3f6fef4c4f373ff77a590bb88ecf5e51d29399f675e4959e1c. 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/3I5QzTkqVWfe11gnii4VGu.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/3I5QzTkqVWfe11gnii4VGu.
{"copyright_id":"0x73ae49a3f138a61114f47a93189de98d3edd970ff35fa4bce5539dca89c43122","isrc":"BX32F2200001","name":"Queridinhos (feat. Offlei Sounds)","registered_at":"2026-06-06T17:19:23Z","spotify_id":"5WWUiXgs2ORU2IzHhqLuEP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ae49a3f138a61114f47a93189de98d3edd970ff35fa4bce5539dca89c43122. 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/5WWUiXgs2ORU2IzHhqLuEP.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/5WWUiXgs2ORU2IzHhqLuEP.
{"copyright_id":"0x486d495e3b96d53bcfc78e509c881dc712f4541d66c5f3fc770f74a726a5bad1","isrc":"BXT992200001","name":"Favelado Chique 2","registered_at":"2026-06-06T04:27:01Z","spotify_id":"1iwwUmPjTOhDoZOwecDWDz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486d495e3b96d53bcfc78e509c881dc712f4541d66c5f3fc770f74a726a5bad1. 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/1iwwUmPjTOhDoZOwecDWDz.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/1iwwUmPjTOhDoZOwecDWDz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c2d5152a1acf983f9708628fa4116e3e86a099b2ecc216a1391bdcd32d8e5d. 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/697CJ1elAb3P9w3vFitdk9.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/697CJ1elAb3P9w3vFitdk9.
{"copyright_id":"0xe296387fda87c7dc9afde799e0b18dfef3af4297aa8be116262134f48432e0eb","isrc":"US7VG2198856","name":"Kylie Jenner","registered_at":"2026-06-18T11:39:01Z","spotify_id":"3GlZuabVR1cSGDYIG6WUzi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe296387fda87c7dc9afde799e0b18dfef3af4297aa8be116262134f48432e0eb. 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/3GlZuabVR1cSGDYIG6WUzi.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/3GlZuabVR1cSGDYIG6WUzi.
{"copyright_id":"0xf8eca1173f4e7d3b5747fb1341c99df6916dad0532445be4cdc478fd3c7c4bf8","isrc":"BR5TG2400051","name":"Pique Modelo","registered_at":"2026-06-06T22:40:21Z","spotify_id":"0wE2kxTljU2bAl97oLBEtL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8eca1173f4e7d3b5747fb1341c99df6916dad0532445be4cdc478fd3c7c4bf8. 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/0wE2kxTljU2bAl97oLBEtL.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/0wE2kxTljU2bAl97oLBEtL.
{"copyright_id":"0xf8eca1173f4e7d3b5747fb1341c99df6916dad0532445be4cdc478fd3c7c4bf8","isrc":"BR5TG2400051","name":"Pique Modelo","registered_at":"2026-06-06T22:40:21Z","spotify_id":"4ku2JZeA0jWbDE0AoFh9wv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8eca1173f4e7d3b5747fb1341c99df6916dad0532445be4cdc478fd3c7c4bf8. 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/4ku2JZeA0jWbDE0AoFh9wv.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/4ku2JZeA0jWbDE0AoFh9wv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a54f42596804e5a93581bb1243e2e6077e8427f26933d9153a0ddfdb866df2. 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/65MVkxrTJIjKtla2e5oJoe.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/65MVkxrTJIjKtla2e5oJoe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407b42fe809d63c0fd68dc0ec3a63fa71c02f29e204aa710138283d52c168a05. 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/5aw9n45WzW5VQ7XHyBFHkl.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/5aw9n45WzW5VQ7XHyBFHkl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2015a78d1838fdac9bbc8ceb64968b42d0f0fa8e805a77112e969c0e31928b96. 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/7sLBW7ciPySDYvT2D5MfLS.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/7sLBW7ciPySDYvT2D5MfLS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ae49a3f138a61114f47a93189de98d3edd970ff35fa4bce5539dca89c43122. 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/0I5HLoymId5aTcPbsf51OE.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/0I5HLoymId5aTcPbsf51OE.