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 0x8b30bf6f8dfd6a7a03b5effde1602e3de23994095b70f6231a848326928241d7. 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/6388f506-8fde-4f38-aee2-56dfda3c0716.json and https://artists.proofprofile.net/proofs/artist/6388f506-8fde-4f38-aee2-56dfda3c0716.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 0xa2e87c3fc4e658274256abccd8ee83483b5fe0a8b756a80f9de73367beb39c08. 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/ZACZ82300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe821a735911072b5d9c9e44a1f81af64e73ea41622780af36b5c466f460b2170. 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/ZACZ82300136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ea20c7cca83ef099e972f2c63a295d139c374dacf79fdd91a539154df548f4. 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/ZA40S2400237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69a014c232b1454cd64afc6402151fe3c9b096cbd9f00d796c76947e70f4d99. 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/ZA41S2204093.
Meadowlands (feat. LeeMcKrazy, Sinny Man Que & Tracy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bed939a253ef58b5e27c2206e573c0c02016ca92a60b12d2fa9d2a02fd53ac. 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/ZA41S2204094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ac7894f4115a8efa87e4522e0baf530f434cf19d8cdd153b6cdd4f64c213e1. 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/ZA41S2204109.
Ubusha Bethu (feat. Philharmonic, Mpho Spizzy, Tracy & Joeleene)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930549efa8453dbd6955b74f66d2e7d17c9464d4712e39e043046ee0fcba40d4. 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/ZA56E2416710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb96fc06766743272431cebeeff407bfb11e918fcb78fc27fa224c63a93a5c0. 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/ZACZ82400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613f03d055004908db9cf0d7de3635196b66df7d675bb3cdd12ac4850beb6530. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/ZACZ82300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82a1cc436d0435511337e1aeb7db43ce736bb5913995d4b0355328f7040311a. 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/ZBBMG2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd332a996ecc26cab9ba30e9824acd3ad02e108d0f6fb6398daab42e027dba2a5. 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/QZZ8A2415892.
uThando Kim (feat. Tracy, Amukeleni M, Malemon & Soulful Disciple)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81129eccc6ccd39856036a5c30ecf4db507a857497c1683c66070c30a0f21677. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/ZA56E2416234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389a0ebb3ce41d6d37f5282f134309e8a989834623e6fa4877319c3252eab791. 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/ZA56E2416238.
As'lali (feat. Kabelo Sings, Philharmonic & Tracy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843f69f1a9bf5dfff556f7eb9b6335e7f15fe9742d95f15f90e81ec0350987b6. 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/ZA41S2225569.
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 0x30ac8430143aa1f4d6fddb0a1b0089bc75a1a394514cc2f1a86b3396e92bf5c8. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/ZA41S2204107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf19c15a212defc76a8fb98f7dcecd19737d8ba348ffab12d1931b7c1216d78. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ZA41S2300278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb063309bff54c1fee3c96a86a08b098cb56a04bafca67e5a14363d2ffe0e7867. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/ZBN532400046.
Bhut'Omdala (feat. Springle, Tracy, Amukeleni M & Soulful Disciple)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02d8dba7ed49915305d9ab0db5842bebca5325e0850a1a02347af577b52d50c. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ZA56E2416236.