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 0xc4d0cd83030ceac85e4d1c47d1cd95935c5780819c0361c10cf8fe374db16b96. 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/c3511201-090b-4b7c-a065-3b7b8554eb32.json and https://artists.proofprofile.net/proofs/artist/c3511201-090b-4b7c-a065-3b7b8554eb32.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 0x0b9005e1a64d2d2ff5ec9ed7be22254d4883016423ecde63a4beda2b3e1b4052. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZWFK2374926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d239d637f1065446638ce3b654af0de2eb44f8a527bac60ddc860978b6140b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTAY2420678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd926bbca7d8b61867bf592b17525c492b2049500e921f0e604dabcde0c84b3c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNWW2422323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68965bbb04a5727b4ee5243d55f015421041c3221fa685d5615dfcb92f6a9dc9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZMEP2461173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96c78cca10c637d741796a0bab6a0015bcd0ad9af361d9c838802a4baf7a4d0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6L2423150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26324013546ee6ea7cf93e4faf102cf6227278eeaf6332f65423359ec1c36e9c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZFZ62477015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9277505f80bcee3f31633ceed3b7ea23a22aeaac29049e8b78169961f905db. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZWFK2374896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22354e1b40508754d7241683300ff6d942741720812a5c8f8eb0ca43adc3fa6e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZNWY2387487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f28a0f2c39b68c5b038e44a85f8653d2bcaf1a9356bee43089e129b33cbef9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTAT2310182.
Can You Hear The Music (Hard Techno Remix)
Can You Hear The Music - Hard Techno Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb2ea4ed5db4149e7766f5f9e16abb90a58947ed37bff3e2f1babfbd949b9c9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTAS2324486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe22786b1605f783ee310f9772e323c01acc7972ed0d373322d09158dcd784ac. 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/QZPLS2300451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996dc0c473c31a98147639f175f0594836e8f6e2155f515b649cd825de4e3107. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNWS2356115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1f4de30df3a5664e2b0f408ffd874664038a1ae908afc313e30b022bb6b98e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6K2370270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2f12c392a408091e3346cba094e954405e48f86db436edc982865fd357e512. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZHN92357470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498cdcadd99c13adf733c8d053946cc9f42701bd729cfa32fd0b3a4cc7a2ee4b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDA82321080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a190f0f1e0e2a5d531acb47e4dbb2c9c7b417fdeef836b6347a8cc503579e6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZFZ42356669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bea0d59119a91d290b6c9331f98f90a877fc1863a3667ff6c2783129651bbd. 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/QZFZ22396116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be4e2292978a6c5474688cdf03e376bb10a3757598418ceea78d85ffb3dcdcf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZFYZ2331697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42058847ff719f9b721538a2e07a387f332564bed5849dfb1600d43fbb1430fd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZFYX2363973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ccd1469b3d40a3562ef86c6c4c07bc4bfef1fb45adb679b087edf4126193b3. 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/QZTBA2270871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5503e94274a406df75769e77c699f94574ed08c92b0aa8662c741b89601e9e25. 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/QZTB82293760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541d1c7b34cd13969828c95d6335f6d9a78d82673b0184050401d3410d7a2eb8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTAS2210010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b4b380b7a550eb9134bbf0f3f6cf8191beaadc17919d7a8e180764e9fd07b7. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QZMEP2269341.