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 0xe50a9dd754f495b3b988f413b37b03d33e434d84426ae7770d177ec5cf706135. 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/edc7e52a-0215-4ff9-b08d-627b5866e56a.json and https://artists.proofprofile.net/proofs/artist/edc7e52a-0215-4ff9-b08d-627b5866e56a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Night Jamming With Portuguese and Dutch Friends at the Park
{"copyright_id":"0xe8f2393ab493f0010ef124a6737cdd8b64cec46767a81c78ab5fbd450675e843","isrc":"GBGLW2100958","name":"Criança Boa - Rumbo Tumba Remix","registered_at":"2026-06-25T08:29:53Z","spotify_id":"52EMW42W4p1fESb9S0Tehv","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 0xe8f2393ab493f0010ef124a6737cdd8b64cec46767a81c78ab5fbd450675e843. 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/52EMW42W4p1fESb9S0Tehv.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/52EMW42W4p1fESb9S0Tehv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9922a522937104874db67cc77c3623da975c1d06e7b01edd76319f6694b29dd6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0gcvEyJohXkLpmd6zU6IvY.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/0gcvEyJohXkLpmd6zU6IvY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5697fd0a1b159b7a5630e89ad225ce0662317dfc40e96b2d4d25372b8b93471. 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/5ZEoCp6vyaz8oiqaxRUtKS.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/5ZEoCp6vyaz8oiqaxRUtKS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff8aa245b5b7a774f40b2406071ec85272164cab02d5196130b4d211ed85633. 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/6m1gVlD1AMdiNFDZPKEGc8.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/6m1gVlD1AMdiNFDZPKEGc8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1040cca703764b0137b2526c29eb52170e1d4c39e554a96ddd49f44cc85d0ce. 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/3hfvQg7nIbia0XieUORw5V.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/3hfvQg7nIbia0XieUORw5V.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1398c5d82206859090caa52eed911f86011430d725725f59fa51f857a422c5b8. 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/4BqUi4wg5kQgEn1ieLL91Z.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/4BqUi4wg5kQgEn1ieLL91Z.
Na Paz do Caos (feat. Luiz Gabriel Lopes)
Straight from the Decks, Vol. 3 (Guts Finest Selection from His Famous DJ Sets)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9922a522937104874db67cc77c3623da975c1d06e7b01edd76319f6694b29dd6. 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/5FGUNQQuJPRyXv8vfj6owd.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/5FGUNQQuJPRyXv8vfj6owd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe0d23bb661068148cdbd4116c8c7c45be7e9faf9fe7810740f5badf1e4e2f0. 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/0WL72LBOvMjk6ERqiBRWtP.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/0WL72LBOvMjk6ERqiBRWtP.