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 0x3c7e5a28cfe1a31cde9250650022013b46a6c0f06ad525e8362b7fca90d5efd2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc793b16-d2e5-4d6e-adea-21c58fd2661a.json and https://artists.proofprofile.net/proofs/artist/dc793b16-d2e5-4d6e-adea-21c58fd2661a.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 0x0d314c008b6d592e698ec2fdb4d484ee62d999bc5759945b028f5db6d94cf400. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZA56E2528890.
Change Process - Ghetto Fabulous Refreshed
Change Process (Ghetto Fabulous Refreshed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9802db34a53978bd0feb2d33abe5cc6926039d0e87a447bd816be3ae78342739. 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/ZA56E2306324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7595d9c101a8abf9491718eb0845ee3ae6a26bb63bf7ebd0818a15b64f50f1ad. 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/GBQGW2400036.
Wena Wa Pallwa (feat. Ch'cco & LeeMcKrazy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220859d5fa31ba9c97bafc1b71fcf7f144b0c0f5a1c7edb114e5a693b6e6d579. 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/ZBA1X2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe75fbd8a85fdef56f78b30fbb2808021c57fb37e01b0a9b02be1b251770cbf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZA56E2102097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b5d138c3255134ee140407545c0af486592011add3b82e8e652e1c9e24b3ef. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US23A1554666.
PSL WAVE (feat. Ch'cco, M.J, Mellow & Sleazy & Thama Tee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85022de2bdb73b656f4b3499347ac44f77302200ba7d3e055116ba35f9e0b304. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA56E2416126.
Ivy League (feat. Ch'cco, Yumbs, Ta Skipper and Tlholo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f89307b980e0d4446590e61cb79877773d075b7f920fa2f3778f5a65e2d876b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2102227.
Kwaziyo (feat. Ch'cco, Cooper SA and Babalwa M)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c679322626bfebb80578a55924f35b7f30552d39a73dedc96c0219f656b078f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA56E2102238.
Sharp (feat. Ch'cco, Yumbs and TNK Musiq)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafe07cef0a83a8f5bd256f4757cae077e408e505ca000080ad04d318a7089e6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2102245.
Ntjaka Mei Dawg (feat. MNS , Ch'cco, TitoM, SjavasDeDeejay & Lastborn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d141b5d15573280b3bc1ff432ffcfc11ebf5fd5836932f11146ba0f10b6285d. 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/ZA56E2201335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a57c638dfdd38ad91af12fa8351758a0e53f12f536231bf36a58942ead0cb70. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA34K2402334.
Flight Ya Hoseng (feat. Ch'cco, Nomfundo Moh & Baby S.O.N)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe575c30c0fc1a387752650c047671a6c7a239cec3f8d2b8bfb977bf39adab368. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAA012400032.
Funk 100 (feat. Pabi Cooper, M.J, Djy Biza, Yumbs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8b25f10094949269cd8c70d81cc21f4a373b8d84655243a4ef63ee4fbb5ae1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA56E2415864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac580d79df974765e4fedeae57593e0b3655d1943be461d7809e5620753ceb5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZB3E42200003.
Banyana Ke Bafana (feat. LuuDadeejay and Nobantu Vilakazi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2665df6fb3a29707f7f6acab4bfb84a56a20d2cd98ba6d1ad45f41973b03781. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZB3E42200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfd4ea711d3071218cbf38a90101d347b6bd7b27e49cffac06d3fd1c63a1203. 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/USUYG1564266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd104d78950ac5887cf71749025c7e4da9f892293fb9ce407536e3d4179d97c67. 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/ZA0I42400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949834e15ad72c953b60bf93dfd386c32ce8283d9af8dc00bb49da21e0502da1. 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/ZAUM72400896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1189cb857f090e27196b8123077931f1dec4e6d47718038f7e1da87d3f9e60c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZAOTV2300011.
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