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 0x1573ee0f9b73a10999d1e3e03abe02a8dd4f32fb3af5e69988ccf2e5fa27d8fc. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0247522d-656b-4f85-a9da-a3e99a4de1aa.json and https://artists.proofprofile.net/proofs/artist/0247522d-656b-4f85-a9da-a3e99a4de1aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Whale Watching - Songs About Sea Animals
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 0xa51adef497344d7c238a5801a3cdef7900ed3b735a72d8640bceb28ff481f523. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USCGJ0652723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf973595a4b7011d5306f97e4ee008b51fa2b30d2e48693a7395d65911a556e05. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USCGJ0652729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453385ff7d8400f027005032c695a96ea25d33e8327bb3d97acadb69c9d72294. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USCGJ0652745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd905676fe11600ae91ae460ee4d4da055a3882b4612724ea6f167e7c72c1470. 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/USCGJ0652753.
Wee Chant - Chants, Songs And Lullabies From Around The World
BABY-O - Activity Songs For Baby Playtime and Lapsit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7369d8c1c16b8f9d0f8127aeac9fd1d6263da1370cd9363290786a8f7409d9b8. 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/USCGJ0652764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc337c2161e706c78d479ab1e3675a871ec9ac0bfb97eda2a8ea53ec7ec82061f. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:53:46Z), 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/USCGJ0652766.