1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xdf7c65b59f90ea8598571eacb86a05ef280885e2c6f70f56151027085a178d32. 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/b880b14c-cd38-4662-80df-50775c3aa56b.json and https://artists.proofprofile.net/proofs/artist/b880b14c-cd38-4662-80df-50775c3aa56b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da9541475751e98f43dd2587bf48b5f97dcf58f7048bcc7965f364df260943e. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2382900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b628ac722288e25f81827068ece1f49a2ed2cafe0cbab9d5ca15e071503d74d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2382901.
Benções, Benções Deus Derramará - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fa62d7dba3dba2884601fdd6402db3857e175032ca711a3c9c432505e6e721. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2382902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf2a30f5547aa2481903aa6be41259dc1a7c3ad46676aaabbf81eb437e41e42. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2382904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87e5583aa01a17266831264b89f5caa6057c2028f405b523a13361acae8bd89. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2382905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a207a4dfbc26aa3441ada717bc2918871dac06aa31a311c6634592966f4da6d. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T01:00:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2382906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108df4d72dc664b2e6b2a9ed48112d9ef478c5d7a8b48b75bdb27a52c1184a14. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2382907.
Gloria a Jesus, Gloria a Jesus - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1248006bbb5f9616c55039d054ea12f64a3c084815c387caa8327c181644f8b. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:54:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2382908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85617aca15cbfe114cef812f089f3d84d6101c33a2163585294cb46366c351c2. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:39:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2382909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43a7ccc889ea2a21da43dd038c17a9792e69787d156155efab948407bcfb973. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2382910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b726638f6bb5afe9730d1cb52c6464a8d5518be73cbe1289d705cc12d919b5. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:40:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2382911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fd84e585379208b3243b06bbd609b7a0aca2c79f9679ffe2d0a7fbf88af321. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32248466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979b56587241aa0556306c3126b6e52f0952ff683e379f02fd7dcf9b74216d50. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2382699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d09a39b8e5fe586c25cdee8ffd874f9540a1bbc039bc265fd714a6510a6ca18. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2382723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a2a2d755f035bda136166a7027e4ccadb003ff3123e382af966b50c3fc74ee. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92551787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ed423f11e7b6c0fd66630ea8991517fb8d56a9d65d6fb26f5dfab2e81c8b79. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92554578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c87b51777159b5ce68b454e5c093dfe39ac691b90d8ff660983d5d20687a992. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92555246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c36ac0601750fd564da2841af1fe831267177d4fa2ed364d94fac39f3629f0. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:11:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92555249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46f4c1c0779833f643e36d6f1b9487324156254d0b100f8685a6d2a9b0f92b3. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:47:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92555275.