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 0x41f2e37bc9de6a46961f8892cb75bc14f220b21312810af1578842bce2e66e75. 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/1e2b6223-404b-4114-8e6a-f8c03cc6bcc6.json and https://artists.proofprofile.net/proofs/artist/1e2b6223-404b-4114-8e6a-f8c03cc6bcc6.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 0x3ada14805038d17fa98f3f263906c7d865df4f91158d4cfa285b6ceb1cc6d4a9. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:26:26Z), 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/IDA181302661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa668d71e9a7db843f0fb9a7e46339ceb2d3f8f65fbf766b837a514027611811a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:19:55Z), 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/IDA181302662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405bead60f6cf5a80c74a76091088c07b02c01116532e5bc714ded636123959a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IDA431914974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d961c870ac3d33d23ce1d024a016813e17f50bbdbc034082306aa7f3cfbba8. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/IDA431914956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741b56d9b9fb56f5cbdc2a71590f33be0358f68522ba48a280816ed4e702772c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/IDA431914958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3483d99c4a7e45f7ab79e7947c34f15150a27d7f2f705d1ca7baaeadd2454f5. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:01:56Z), 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/IDA431914961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6986ae9c2d13312bdefb84a140b7a900b242b8bc3b1fcab21b3a1aafddce763b. 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/IDA181302446.
Pop Indonesia Tetty Kadi (2023 Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33627e88b0e56b5de1632405836ba7ae46d31a35339bf0948e3ea855764f5f53. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:10:40Z), 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/ES5832300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae05abd8a74f8b9d693d43309062f16d64848522f6ae36ae3591cf9d33737312. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES5832300023.