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 0x9bf5d28e9fac4c416869061d39d1921bdc5896ae9aacf241c202aa18bcc4c693. 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/f7a4e81d-0f9b-423f-ac02-4fb30f56d139.json and https://artists.proofprofile.net/proofs/artist/f7a4e81d-0f9b-423f-ac02-4fb30f56d139.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 0x8e157a852f906bf7a7fb42e32364188878d215b5041aeadd75352a2bb527420f. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/ROROT1528901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5493044a50b3dcf2ef028a0f69c795e9ea154134d4d1142e3976194a80195bc6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ROROT1518001.
Ma Ucide Ea (Even Steven Extended Remix)
Who You Are (Full English Version) [Hype Legends & John Deeper Remix (Extended Remix)]
Who You Are (Full English Version) [Hype Legend & John Deeper Remix (Radio Edit)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c3c28a2235fd18141e9547170e35877b3121ed5c95ae013f9a4163e2d8970e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:35:46Z), 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/FR2X42333756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e5d9ddde2efac83defc37773f3b0e2719ff9585bfa05b74b727b6b01fcc593. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/FR59R2252674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16997eb430eef05cc929952d785610b84d54f9412effa16997baf6d3403c2b39. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR2X42333757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33470b0b95db1cbc3bedc43671c31c215ba4a3551e10d36d3e5408eabaf2a1d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/FR2X42333758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067ebc276979d0c829dd25826043cbb2c7f68135c82a64f82ef41803ca70bf19. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:36:52Z), 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/FRX202216671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e39df013df21a9eee86c8e263768dbbb0a88c4c80811073112fb7928659c2a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRX762508875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2511ab4777bf65cbbe7edc4f536d32ddc1aa27e3f0fd6b9c6390eb324f0cbe6d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES7810600109.