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 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 0xc42dbc606770b2ff3405dd2d1196836aacf588bbf3a6804bfb46a6139e13a9de. 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/776c8e96-23d0-49ea-9b41-c9f0e0222ead.json and https://artists.proofprofile.net/proofs/artist/776c8e96-23d0-49ea-9b41-c9f0e0222ead.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 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 0x482f993f92a44fea9902b517f33175ed091ce2d7c261e8abcb3781e8eef91737. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ZAA640700383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05472540da157f39a8e9f9b85237da757ae0e6c26c33a8e9e1f940db129fda2e. 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/ZAA641100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5803bc290182964e8e892608b6c52d840fdfc8f4d1ceccf0784d5637a666f79. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ZAA641100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4663da23236011f9c79d0ac0afb90bfb056b557e2464fdfdd3eb2963d829c481. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ZAA641100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8776a8cf988a877fe7b6c9f2a7cf69bb9013efcc2e68ab66f4a21d0392627704. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/ZAA641100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8240ac3117b57c2b25ff80fa0012aa77be6cc070b919a7d1789d77518a2c13c. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/ZAA641100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f7b6b2ee78fd57c1e777f5217e3051c68f1928b3146818f81ab4a3708016b7. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/ZAA641100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85ef4280e13b7facc9d5929b8c2f1037df69a7c9a3be34bd2060367d2d27ee2. 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/ZAA641100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a16e5fdb37648ed76bf898499faa538914883ca9e0545c5fbb02ef8fd3999a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ZAA641100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa103b55716f88dacbdd245bc165367ac9526185519b443cec5b1357965592c07. 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/ZAA641100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a49b1196068f173ef9452cc7a1bdc6e146f7da02417d425086d2dabb6ca2f37. 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/ZAA641100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1081172711f59a0847d0b92c2c0a03c880355ba76e923b1e37a831e75e320910. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/ZAA641100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8a045746e002c74e561d3d17ac952f7a865e24616399586d87b6635c015855. 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/ZAA641100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28713b23ae8c8d11a70dee042ec8ceabae6ca9de5cf099e61fff08f4761a509b. 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/ZAA641100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41928130f42ae93f8c117b3515fe8e8d33aa375353116ff0e748db1d6342986a. 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/ZAA641100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdaac02288b15fde93ba3d1fbca7096754a67f084425191937d9d1d08b46c4e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ZAA641100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b55657e0c077137e48bb68dfdfd139612b7bcee828707febf0e94f591a5d0f. 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/ZAA641100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82681f7dffb52deb33cad4303ae902639b7f24239058eeb1d15053952f484922. 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/ZAA641100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd763b38c70a3b9b5be1b5be3686fb881d911e8742b039e5bef460b8003b5d19. 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/ZAA641100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a4c93ed4b4abd8686e3dfea328d186e9dd8913e727cb30c5e5909f2b6273ca. 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/ZAA641100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4fc95caffd9efeef99baa670c29b45dfe6ef2309ba57c0098143204711487b. 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/ZAA641100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8282bf22cd031d68d7cf035fc1e1dab02a21f4e561e67314c5fbce728a008073. 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/ZAA641700064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c15bd9b8d12bd6661107b35df46ebcd303228ca942950a8a572cba29aab8fff. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ZAA641800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace6110c6fabb3087c02b604c311ccfdf19b2dedb9ffa40bf166c7e969a44083. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ZAA641800047.
Kalawa Jazmee Classics: Asina Ke Spikiri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403cf087d9b935c0833c51784ce285168ba6e2f00dbe0e519d559307c6971036. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ZAA642200004.