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 0x1c4616f6eb90a1b7eca4de2b653bf3cd3cb035923595508eab83da07f1e76565. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d15f3148-a40c-4209-a7c0-4d3199582135.json and https://artists.proofprofile.net/proofs/artist/d15f3148-a40c-4209-a7c0-4d3199582135.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 0x7a9353e45c4b243cf8954be9ebec67668fd51f7b848b11eb10e455c6ea53d3ac. 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/ZAA642100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae5c1161aac57358315485385d5efed04be37c543a1227d4dfc116d2171dd7a. 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/ZAA642100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a1f07330168d6e39753683e5e6128ec5225716d51606c51c478f326b8b0a04. 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/ZAA642100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507a046bdf72dbee21f58488dd7a1475128a4bc122cdef2f87dd257e9ee66be7. 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/ZAA642100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11caffc1b33f64aacba9dfdea716d2cd3a1c0237f138606d647184b82d799b1e. 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/ZAA642100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99a2a9c2d235f3b68396c0de769a2f2f6ad2efe2bce0f104a2997d97e2635b2. 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/ZAA642100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d8260076cedae4999ff1e9be212bdef33b5a2765c3efa40ca2488357095b40. 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/ZAA642100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08ffba5d825e6ac490bf75fdf5f1d8c5d1a62c252c58fe2c10a9b48bbb29354. 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/ZAA642100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cac4b6d50f0b2a9ae2b0126b1cfbd5f632666dd660a5aa123b8d0300e2d93fe. 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/ZAA642100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289eb147ac663fbb5be18406104e910c5186daa50ee16a1c1086c331e5f10d91. 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/ZAA642100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed91698fc44906e4809be3c0555ed6d47849fc12bc23b193492bfaed84f8924. 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/ZAA642100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b64dd557c9e4a0715d06ef3b3cf54664515fc969fc564df3b2f2ad27c693f3. 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/ZAA642100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1277e08db1d7121c6e336afc6ee009b9bc6f65bdaa7d939ead28a42acba3ed8. 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/ZAA642100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e15181aa001d3825aaaae62601ce2fe02f3ff1946ecde340184ac6ed837d6c4. 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/ZAA642100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597b27d2b95cfd1a7508c8780f24397f639349a695e18a58c27868af7ac5fa1b. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ZAC012201542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd8176b69c4cc19483d221a15e2fc54324aeeedba073aa3fbe852b775f5e528. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/ZAC012300363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce250079819eb5820e3fcd03865f736450401d58eedd0c847cef0856cf3235b2. 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/ZAC012201548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e9b3f13f6672803afa870560cd63e7727f1082fc004878bfb6e59304ef3a2e. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ZAC012201544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c5975cee5f68e26061e71b693f94bf9c688dfc236dadce87a610df266511e7. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ZAC012201547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8f89c09176af56118d392d2e675a1edeec83889655fc7a59a065a781b775a1. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:58:33Z), 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/ZAC012400437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d185b30cf48b074d6ac6bb39de458b16bf7f3e010cf282e5a92884a485daf0. 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/ZB6OD2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf413dc5ca8a9d019adf75a0dacf1e604b778932162b72a61f7169bd223b24c5e. 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/ZAFBE2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0becb8d0e46f3aeda877d649285681416f103d4aedb23836c48de7b072d7d565. 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/ZAFBE2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a4bd5dc47938036a57c4eacad13eaea8a2aba81850976c3349c3ea112f10e9. 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/ZAFBE2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812974208d096eb2148879e043da27c26f58916cb2b01e7bffe5efb411db9ad6. 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/ZAFBE2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14869f0c42ee26128601740448abd2a30d2307b489e00094a312af2ac487342. 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/ZB6OD2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b9520ff1f5ea8c828ba1e936103043e2c17964ed77fa5f08fa436f417353a9. 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/ZA97K2100110.
Ngiyabonga (feat. Master KG, Lowsheen, Sax and Basetsana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78539469a6e7204c2060fa5166aee3faed13c268ae14a39644e4c2321272fe63. 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/ZA97K2100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312c3ef98f4cb1520f79315400ca7bbedd595c436d676739a9aab93f399e3e39. 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/ZA97K2100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef63829b0740bc3d9525beed11df153793484301de45727f8fc513e67bd99b3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ZA97K2100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716bf3a9402ddda1dd9f931242989dd23d6dee588a43a7a5e97b04d4a5f82373. 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/ZA97K2100117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3cc1dc49e36f317e610288d4ce64324ebed26d2ea97ea622e7a7c86979acc0. 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/ZA97K2100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa5c0019735488dce7ccecb6cb5d0d38b7827e912d4cfaa36df11d7664174cd. 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/FR59R2463491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23c6b400ca15291e577c64a9e7867442a71fc111246f75eac1e7c75f489fef0. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR59R2463489.