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 0x3e7dc42501b28ca8c17417a96b2796742160ccc2e673fdf3ef3b8bda02bc6cfe. 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/31eeff63-32e9-4ee8-a6a5-eda6148ed847.json and https://artists.proofprofile.net/proofs/artist/31eeff63-32e9-4ee8-a6a5-eda6148ed847.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 0x9e41b957937e53a32ce4c3aabfcf1a4f75683f167f1b435aed698ae7c4d0c92d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:49:11Z), 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/QZHNB2354089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4239a8ff45f3486db47021e040152bbf406d24c57225a8f6608ce07f94e29b. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:34:55Z), 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/QZFYX2395861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3951094c24a6eac8227544b8c0679595f6933b613bd1e98f0d47487863048d48. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZFYX2395866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbaea2a9416ee4475a75f27ae1ba24ed3a6ec6f9709fa473d1051dda711f413. 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/QZFYX2395869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb372e8f010881d3db779a787df2ead30f34e70988f997962f706e491c6876f60. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:03:02Z), 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/QZFYX2395870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a67e3aae3c0466aa094b800421c91388bc79f5f9d6ec98acf8d130e1394bb78. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZFYX2395872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213e9c9f1867c695739e381ff2ccf2a134886632a8e7c16580fdab57ce41e359. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTAZ2296610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d25e3c3a8b85f60a70d4c1764ce67862ea8c65ce1600e533d75104108a0d640. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZTB92281932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19922c0a75a369007ed146dc2b18371c8305da30b0c1a991a853c80c894336f. 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/QZTAY2374447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6f41b2d7cbcb6a2d3cdd6fa584392dee9b38eaafd99f032895e560c809e8a4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTAZ2378493.
Switori Swa Tichechisa (Salani The Producer Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e00c7bf96ee96ed6f5be2ecd9ad36963e44f0f83231f2da653c7f0f50428d16. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZTB42349526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b440de960f9f2230efedd63c2658277e03cd3bf7e86c37518868f2c9a3618b7. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZDA42449647.
Boza Ya Mchangani #NwanaLoyiAngoVha-Vhaa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c93a2b4833d68a5761dfc8a00e34bd8825bf7b8b13b0fa6a08ba9aa6bb36ee. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:57:16Z), 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/QZMER2436413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b43674d893a95a7df3791dcdab1af25e66d488cc4622566b1f52ea9190d44e6. 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/QZWFJ2438520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a16c4026a72a31d7159fa53b7c47dfc6b7ff59d14df4b0f03026781fbd58d9. 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/QZWFV2420279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15d6e298fcb712e0f4d5cf9f8ec8b4d04216a94710ad63ca46381f4c3077134. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFV2420280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067c437178119c665308628a278f79e575100f97905a062fe9ebdb3ae2e6cc73. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:36:15Z), 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/QZWFV2420282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c4c0989f081cde30dbc3a714c4bcbe6f0f9bc3073b54408fb7c79ce9832c72. 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/QZWFV2420283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b10571864d63b1af35191bf8abb05f3560a0930c405d496e9c6b79253c2133. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZWFW2499000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c2c9fcb6ccfc5846c6bddd01b397b88fddbe638cbc02c146d51ca7533d6a5d. 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/QZMEM2575395.