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 0x478182bd063ed77885624b00165fcc81a8c1da6d0725a21acbc09c77a2283643. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54d445c0-b54c-4b9a-be15-42a07d120044.json and https://artists.proofprofile.net/proofs/artist/54d445c0-b54c-4b9a-be15-42a07d120044.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 0xa36be126cf3beebc2fca781ad74fb5d95eb941d9c8bd82d38c2182ceac7309a0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITO101126935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3e7d93d91ddb66601c4af7361761b9744b215684e12b14c009b9c57034e212. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITO101126944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ef84dcd12168511e0962168f95782382248550bbc090c70eec6644c047039d. 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/ITO101126934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fca923f9a6fbe5d54933ae02bdd0c505062745fce54f1b1f21128e74163a9f. 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/ITO101126936.
Clair de Lune Debussy Classical Relaxing Piano Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc20e0e3debd5a4d0bc1eb85067b5847e720139efb856b0667084115c93212ec. 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/ITO101126960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420e6ebfc1d2fb3c3ec13de06ad4116c7fb845643898f2e31872bf30f3b0c909. 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/ITO101126939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782242ca7996b6782d93eef7ca875e3fdc6ad5255aea61abc390045f12bd559c. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:11:29Z), 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/ITO101126963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5478d76a1bdce02f5410b04e0486e9ea309f80fb7620bf77424663054964f6e9. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ITO101126950.
Ave Maria Classical Sleep Music with Nature Sounds Thunder Sound
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826efd422a1108634d0eff6211f8e1460be1094df0b8605929d496e1c4b89033. 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/ITO101126940.
Intimate Lounge: Hot Music for Sultry Nights of Lovemaking, Sexy Songs for Couples