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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb51e087973b124ae96d8f896b0c02c25cb1598c9dd5a76bd33c99e74b493e17. 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/48780b1b-69d1-4772-9ff3-874ee8e1c438.json and https://artists.proofprofile.net/proofs/artist/48780b1b-69d1-4772-9ff3-874ee8e1c438.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bea29e086f408b96888840948a06f21ffcfc9403b46d2fb8aee5ce62cfca26. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZNJW2361414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09daa9bfd73cad7d3a3b56df3d3dcf6ede7ec7431d5bb68ca6331de1e67a0618. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTPX2343504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09daa9bfd73cad7d3a3b56df3d3dcf6ede7ec7431d5bb68ca6331de1e67a0618. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZTPX2343504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bc4ace84238b3ccf432b9ff6f97a97d7120256609d6cda190d6620e177e568. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZTPX2343812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64756ac6ae18ed718de50d2eb2f4116558043de797c47e82e28b6c8f3b4b3766. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/US7VG2445109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64756ac6ae18ed718de50d2eb2f4116558043de797c47e82e28b6c8f3b4b3766. 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/US7VG2445109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc753455729f5af095731c8b3f2e35ccc9fefdd1e46daed5f79dd40b0bef52b79. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZMZ92466488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb266d804af0c8352726827f284e519ff2c23aec081fe0cf8b6234e3fd5de63. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/QZNJV2438148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb266d804af0c8352726827f284e519ff2c23aec081fe0cf8b6234e3fd5de63. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZNJV2438148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1465b59c2513ae8ebdfb841465aadbbcbb57e41cf855df50f93d1becad66db2. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZNJV2439335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1465b59c2513ae8ebdfb841465aadbbcbb57e41cf855df50f93d1becad66db2. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZNJV2439335.
EL VAGO (Fharid On The Beat & BRXS Remix)
CAZARRATAS (Fharid On The Beat & BRXS Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7a65d216ec60c3aef1a9546d1973977f3b790ffc2c8a9d885e3b4355487176. 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/GXF9Q2549996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb3ae06eb34360119b117970d3792e46232b42129e6b57e0016f771e41d28e8. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZHNB2567699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa339a6c086037b7cde007dd89597e4db19c5b5747f0fb76e7583617f5246634. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHNC2577896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa339a6c086037b7cde007dd89597e4db19c5b5747f0fb76e7583617f5246634. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZHNC2577896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4201c757b2da0f94d31ef8ffa1f86674be2acedd6b994327d88ab03508545833. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZWDW2598090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd20cc82ad21408c582380b55ab551375cbf447b981e4a1396ac4d52a1b4a400. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZYFZ2482333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65f0de63b8fde0df37328cd57ab602c7a1b55648df59679ef38eca92ff43193. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZ5AB2485442.