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 0x54b61e09de9e706f8fe3c69cabc780d4e548f8ffc4006fc4cc5627deac229ba3. 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/9c1b9340-26f5-4c5d-a97b-585ff8709543.json and https://artists.proofprofile.net/proofs/artist/9c1b9340-26f5-4c5d-a97b-585ff8709543.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 0x703aeeb0ba65acb7a5a2b27320867a3d58d4ac37d5fc0bccd2aa5c8e6802d8b4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZHN82356895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59b5d8b7a4c1308c511690fff1cade2b5307b5c4bf811bb0229bd08b264ebfa. 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/QZHNB2317899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f046ec3b2d2d3aeed688620fa0d5fc4ec57755db3abb4bc745de29f4a16b64. 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/QZMEM2399113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d026e179dbeee94d56b027347fd86906d43d4189a20b0ef1f7c95d8aca071fb. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/QZNWT2354050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa980eef16492d31931359f3f703e6d09e1978376cba1772edd174b07b6c8512e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTAY2302282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28753b094e4f1cdcef46238b241379df2de9ff6bfd035c2c872ed48087d87862. 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/QZWFW2437594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfb7383dd27b17e978a1995e74fc9a794d9ce215fcf78ee5c957c3f50ff2cc8. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/IT1M92500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ad822e0c930db7b62ba67dec5ca509511fa06e3da7f825468cbc81d5d690b8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWDW2514852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6521451ebd90fd4edbe1f175a7610b2fb29f75b54fc5924caa21fb7f524607f7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZWDW2513900.
Move Your Body (Your Body My Body) [Eurodance Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd704664f25fd90f39cdcbc70099b2315ef78ef826fa6fef2ac0987bdfd5b780c. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/IT1M92500139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7525875f0e8da1f4decaee8787cb71ae82ccd0ee0e0b4b6b99d300c23bb6e999. 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/IT1M92500211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5414a49a685eebaf086a680efe640f1a28fcca0872412cd0d5f4b3276313c9ee. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/IT1M92500232.