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 0xdeb1c4d23c20e5609ae206cbfc8ac3bfcb792352202f0f06b9c3e325d7634071. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89b27ab5-d068-4ff0-963e-a4baa0bd951b.json and https://artists.proofprofile.net/proofs/artist/89b27ab5-d068-4ff0-963e-a4baa0bd951b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Intombenhle' Mhlophe ("BLUE OCEANS" vocal mix)
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 0xb8b519927786cd40214779282badd85d5c9263e7ddd639f41fa81b76a465070d. 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/ZAUM72202524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b4d7ad1eb0c6e742e435ed68f96d66a1c72d4766712ea3a602feca61dfd7b0. 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/ZA6EE2000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9866460147afd6d748d75489c0d6b13170d08bf8c35f36bf25b160f7f57a1b9a. 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/ZBRLA2400006.
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 0x80ca1ac7af674e62e24ecef387d54a6e0f7d70fcaac0da307fcaa753abab11b5. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ZA56E2416241.
Tata'Poyisa (feat. Mashudu, Tracy, Mdu a.k.a TRP & Mpho Spizzy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd110f04448df8c3bb9d2afe748f130e0d751f0a97202cbf9946a2dbef248a8ab. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ZA56E2416245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9866460147afd6d748d75489c0d6b13170d08bf8c35f36bf25b160f7f57a1b9a. 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/ZBRLA2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84947a367047043a20a9b255bef60af159b776e99ebb580fdfdad45c220a2cf. 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/ZA40S2401981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaabe3f170deef5439840266137614c004d2f479c55fdd7f97973f168f36fb70. 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/ZA40S2401989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e69bf49e44703a10169e10f7d6b9ed87c3a1b8d0edaae6b1a6f02a56472330. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USA2P2450096.
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 0xd2e3a39160d5b0860859257c14c85f13c2a62052efd389388bac6ea488e9fb64. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ZAUM72202517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6222a4c377dba7dafe2bd497d0629de15d83b8c2a7102331cd2012d2e53a0c6. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ZA6EE2000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1bb0a0cab296e2cb593ee789a4895da3a8ae9eb1624ae678eb2e1062f3ddfa. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/ZA6EE2000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a65740577a5fc920b4d347e884549e0e9a545f527ea7971fe51b7c7d573177. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ZA40S2400763.
Zangief (StreetFighter) [feat. Mpho Spizzy]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9a598b1f845b284869dc7342090406363c358f6be712d890994d913d231406. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZA56E2416233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30fb6783e286bb24fc139929b9aa5b01770ed16589ee08260cd7260e9eb4d67. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ZAW7B2400037.