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 0x24ab9aabb75e42d7c80b8a8714fe311467f0e7a7aa083f71c2720a8a1ca6ed6d. 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/94766abf-7c47-42bd-98ab-f16092d8d515.json and https://artists.proofprofile.net/proofs/artist/94766abf-7c47-42bd-98ab-f16092d8d515.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 0x7231548bff0c31d84c1d81a9472eb31445694f0e4c931fec62c767b8f7c0da5e. 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/DEBE72300800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3270553de9867479bcaed3fc2ca5cccafdf1e4308de29269a83f52e9ef3e76. 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/DEBE72000078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b721733ce9b10e40a81405de9f81c467a819230d153a1d3324ae7bde9b44022. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEEC33501279.
Toka - Blanka Mazimela Chairman Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c9af4d8973222c794fd11678d408a86dd9e7974f27ff26ee370e4416af63bb. 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/ZA9LB2023030.
Toka - Blanka Mazimela Future Afro Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420f9f8b10783371c07f9d79e6dc09537dd24764ab86e5e609c336358ac685f0. 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/ZA9LB2023025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e976150164fc029e6cce7288d4d048c873dd732bb77962989d964cecc7b3ac. 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/ZAYJ11800062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e21b39a292ba308e6422ca4af43bb3cacc47523f75979a1e0ed0a4bc8a60d2e. 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/ZAYJ11800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e7a1fde4baec1a7dd312f0de6abc7dbb5b6f83781f3a7e09a511014ddb63ff. 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/ZAYJ11800063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7162877c5eb8ca8fae43693583ebde477f9c6c41dee634cf0cbef3e471cca9. 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/ITFGO2200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4651ed9721505ac3a2f75119a22b33de6e8fc104589e8259d4c9f745dfb8c51. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/ITFGO2200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f92c8d5eedf44792f2c8696cd7cefd1c7f66e606c19639ebea99efb963a095. 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/ITFGO2200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0fa868aa37e253080e133b481a2a0c48788086b1604de06615dc99e4853b1a. 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/GBUM72108457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12e2a6f8511296a27eb41298f8d58f09ec77f75e3d1cac2c90e4065a283ee65. 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/GBUM72108456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5ec7dba34b89be275fad04f4a811a6b30295382d9c89c80ad5b0f2e23c41b4. 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/DEBE72100354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9f466512ca18363b2aa6cff44c87e4372bf5a2160b04aed1041bf590ad9d50. 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/DEBE72100195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae584daa8a6afa7fd2cca49a1730a2acde46ecabbbd78b8a51bbba4858fce10. 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/ZAYJ11800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bc9e3843c121faed4c8f631337bcd3712763e6a73f6a78efdd47b97c8290fb. 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/DEBE72000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a283ac5f4800734aa86d28770520d3f31fdcd2795379db8ffe21a1635cdce04. 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/DEBE72000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2f20c45cefdd4f84c808d7a318103d02474630cf2866cea09875d8685070a8. 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/DEBE72000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f757fe2c49a1c456a1e738a6f5d8c67e8304921e103952e6863d8c016db5f20. 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/DEBE72000077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3270553de9867479bcaed3fc2ca5cccafdf1e4308de29269a83f52e9ef3e76. 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/DEBE72000078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9cbf7447b5ad58bd7792ee6dba3b0d617956b238b3526eca1f0a95eaba893f. 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/DEBE71700405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22ad2950e7a2f1bc45439f67de22ca90e0125a75282f11dad5fcf04f8a649d6. 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/DEBE72400334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7231548bff0c31d84c1d81a9472eb31445694f0e4c931fec62c767b8f7c0da5e. 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/DEBE72300800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3270553de9867479bcaed3fc2ca5cccafdf1e4308de29269a83f52e9ef3e76. 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/DEBE72000078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf12b733abc29ae1966dd628a5bbe1a64122db558437df13bff3aef8a475d282. 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/ZAY592300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1602d457890c140ff0d19978c7ffe168d22341a6940f302d1d09146267908f27. 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/ZAY592300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6e5fadd6dbd341ea0b8aed409609d72b023d30f3d0361816de4b9b2612a1de. 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/ZAY592300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab8a8dd1cf0591dd3298ac1c3fcbdab66e83a45ef82a2887b8159892d6e3d56. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZAY592300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550456f57dfbdab4f3984c204abef33736dc4ff1783c8ec51bd0a26004138847. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ZAY592300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3acd0621d4a7af56e9c02209b55fa5fc11207033b19d537c676144b8dbbc816a. 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/ZAY592300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae7752996541414c85de886c54a14bb23125dbc319575ca957b797e2b2fa9f3. 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/US23A1582301.
Shumayela (Blanka Mazimela's Late Night Reprise)
Shumayela - Blanka Mazimela’s Late Night Reprise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdf9c95c3886e9ffb6cda68e67f39407ddb1f106e03ee0ef1c5315872f91315. 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/QM6MZ2549166.