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 0x2182c6aaa381762dfb4340ce1d6fd3fdc294d7e02bc4f984c61d537b1641a6c5. 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/6148f4a0-6090-4ad6-8bd1-bbfb5d655a18.json and https://artists.proofprofile.net/proofs/artist/6148f4a0-6090-4ad6-8bd1-bbfb5d655a18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
HOTSPOT REMIX (feat. Combo M, Cuba Beats, Sickoo, Rockess)
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 0xc82cab5799a603e69140fb13b7680864cf87bc99e7fb8f9b04291905e95049f3. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/ZA56E2315019.
Happy Birthday (feat. Augusto Mawts, King P, Dj Nnandos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5133a04d88c9a14c29c02dcb58d90d034ec428daa85c0281a1375ddaf76420a. 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/GBLFP2359291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a8fd44c694ebf363d6b53760fec7bf94147caad206ce31ac6564eeaca0f370. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ZA56E2416688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482dab0f9387694f753fcb3e48c1ac97bf69a1cd84630e1e6e1399dc45ad6cb9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ZAC012301345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6ae89beae3136bb22de662752028cc24687358d887ddfb18809c1296d19e19. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/ZACZ82400018.
ELOKSHIN (feat. Mr Nation Thingz & Major_Keys)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe156233b8232c089c492f292fa98588668024c881f5c764e2f9a9572418c0b. 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/ZA56E2416725.
Sondela (feat. TurnUpKiid, P L U T O & Lady Steezy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dabf4dbe40d321c5fd98ff8649d0639f91afe985a3e5cf9a17a2c91a3558a0. 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/ZA56E2416991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d16d30bb3f47cd9e9ea977270adddf770594a51bfc620a9e9014b4cd256da2. 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/US23A1576571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ed37cf9db56a89d2e81f80f9d29a3f1ec09c7fae5f703c079c3a0dab666a3c. 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/US23A1580668.
Sometimes (feat. Beetee 4071, Khanya De Vocalist & Mr Nation Thingz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086ee42291297d9b1a85a3880ed5d96121e71e589cf7e9c2ebd37361891cf536. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ZA56E2419686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0696b8da0291dedc0351633aa9e10c585ebb3ef9c0385720f6c498d36c75d3bd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USA2P2500366.
Sibalande (feat. Mr Nation Thingz, Mellow & Sleazy & Makhekhe Jr)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead6df6c3e07a95e5d141a85cea7ad13140bbb0cc2ac30cd678d292843fcdaf3. 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/ZA56E2527089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9862c6f0c3f3910e6974cb37dd4080a97d973798f77e1a04bddbfb14d37683. 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/ZAC032410720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9862c6f0c3f3910e6974cb37dd4080a97d973798f77e1a04bddbfb14d37683. 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/ZAC032410720.
Chom Yamii (feat. malume.hypeman & Mtimban3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45413b173fdcf95b56be571f4df75bfc2887ddf5e5a23743e6fc08617999c93. 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/USUYG1583949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa336032f6f39681d23a9e51275466cf33bf28fea489e9de7a7dec4390e87ca95. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/USA2P2423832.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39972f6177f81380b760a82683f5ebbfa1d6bd69be5646abb42fc25081208258. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/ZAC012401789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3b919d4e843d3049c04b6b6643f9222c0b41aecd33b1aafb6890955e2956d2. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USA2P2442247.