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 0x0afbd7288c56c733b9f69a08c960150aefa7f460faeedd232fddf415af9c2dc1. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e7b3be2-2095-4313-b735-b414fe2961b7.json and https://artists.proofprofile.net/proofs/artist/9e7b3be2-2095-4313-b735-b414fe2961b7.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 0x63202d08f99a579da49f561300426685c7ef654701037c04cd27052a222cc565. 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/QZK6Q2024113.
R U Fosure (feat. Rotimi, De La Ghetto & Play-N-Skillz)
R U Fosure - feat. Rotimi, De La Ghetto & Play-N-Skillz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa217ca3039892e2246e39841f0688303a87296d87d838166846838fce7437d91. 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/FR8Y72100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7613923575686694365394c6e3cac207e55fba3eaed842bff4bd5b13e50115f5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:21:02Z), 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/FR8Y72100582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9073a6eeed65eeef6e2c31d5b342099e63f990d966a958b5302cabd8454bba. 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/QZQAY2382372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd030cb1257b3e77c21d660ab004867f607bd6d9e2e73aa01b3777f7c9ee55209. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:08:09Z), 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/QZTLA2356232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6355e502dd904b1a49f075b34ca477234fc5a7172a9b8b73690caa40e62618c6. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZS7J2319778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2f4f61fb64660335b7f17588f598079e0899b566549feaad962d4e5be4f93b. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/QZTL92352819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0265f4c021628006a59e4b83ed93a07017c31f16756e1f6ffcfaf680b697b86d. 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/QZTL92371630.
Oh Nah Nah (Frank Delour Remix Extended)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2645da0e61dd07721aa3c1b3f276c57c3d7ef5965d2af04a4902eb6c03013042. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZQAY2498740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfaa87822f78035f4bf87e1c009c44c87c6b2492eb6e379d1efbd2f93f003fe9. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZQAY2469026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1273c2dd217eeefd106c08a25a0faef6b22113131359fc578e283ef855f86d. 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/QZQAY2463450.