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 0x719bcf8dd1321e64944f3b1dba56b635b9d003d1f1822b7d7932e831152f199f. 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/76fc9329-c934-489d-9629-5d28300ac5d8.json and https://artists.proofprofile.net/proofs/artist/76fc9329-c934-489d-9629-5d28300ac5d8.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 0xe1f23b8917011d5aaf7af7dcb88da814d5d7e13714927634ac51759ad1d1834f. 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/ZA0WP2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fc0560576d508883014be7dc7d1e184b02866f9f78d49e355b167839390c75. 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/ZA0WP2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899132678404123911389fceb117827705415e596345b62fffe8bd2983bc22f5. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US8JA2329001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5838ba25f69884584edd82119b37a4516f7a62de26600b5b0013b625e5531e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/US8JA2329004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09db7621528832195593cabce5f2d701dbba30d889c16a6183d1822a5dd7fc80. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US8JA2329007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3b2f6bb6d3bd2c135e553e5bf7665bf8e8ec3c778db2cd4bbb1304f3e20b6c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US8JA2329008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee4617080e4111451c4ec9a05ec6729ec54e28b1f5b6033fbb88ab62397078f. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/US8JA2329009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91dee4300d605273b6d905fd1bd176938b8613c06142c21937be3872242ed75. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:16:41Z), 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/ZBO732400328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f985475480b8d30d10b4a0acb4022f6ce0d6f127555c882dfb4c171e62f82b. 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/UKNMP1900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb4413a753989875f0acaf8f5a85994e0e4754c60f3eb417a10936ee5e31f61. 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/UKNMP1900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3289bd4393faaf0c7f4a42b46cfeb0f4720661796e9ddef0a9eccd5ebd140ca7. 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/ZA10C1600012.
Khala Zome (feat. Mbuso Khoza) - [Lemon & Herb Remix]
Khala Zome (feat. Mbuso Khoza) [Lemon & Herb Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9834a78621f780423bee4b88793eb21fcb3d8a42f3564eb35aa9a65a0c82eee0. 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/USNRS2241672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7cc8b18abf5b2eba897f21a799865655f2044676728992272d26d0d1d1c7959. 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/ZAUM72202250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5babbe0b2e7b8543c67e03b6eee7298dd1541a07a86921ed753653046040e8. 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/ZAS6S1700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7cc8b18abf5b2eba897f21a799865655f2044676728992272d26d0d1d1c7959. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ZAUM72202250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589e25536e936ae24174b5af4be8ccb13ca15080c53a48d7bbcb16c26d118330. 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/ZAG9M1700001.