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 0xe9a50dbdc8bfd03749ad17135afb9c153b36ecc905a79bc92fc44231508e8d46. 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/7e6f59ff-3df4-4871-8b7a-dcd209f3e456.json and https://artists.proofprofile.net/proofs/artist/7e6f59ff-3df4-4871-8b7a-dcd209f3e456.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 0x793b2f3c0f86be01bbe4cfbdf58cd801f5bd30606f706e6f7cb7cff31f8fe04c. 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/ZA56E2415908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea21b82cabae1469862f8f57d306249d1b5305ca7e07a904e4abcced150355f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZA56E2315004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224be5bbddaf5f8d3a783135d86bfd1b6cef4385f42778b0a043411e6f1a1f16. 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/ZA56E2304066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3f33560f003caa61dcc779cdf246d602767e2132329cdbfec50d3c9dbf1765. 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/ZA56E2416389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793b2f3c0f86be01bbe4cfbdf58cd801f5bd30606f706e6f7cb7cff31f8fe04c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZA56E2415908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007a0f766621eef772c21b9aaf98d7edcb94244970c8afb95d5e45d839ea387e. 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/ZA56E2416390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54acfea7154b138915657fca3ace836e0debf329a341a1485dbc12f914a941cc. 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/ZA56E2416391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95c6c1f43658ab0d80315a6108a2d5b19e2efe6b8bf2a3fab7d4489cfa759e0. 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/ZA56E2416392.
Mshini (feat. Khalil Harrison & Tumelo ZA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8a2ee940729b96aea3d3c696f50ebceecbcb1ca84fa3bf4096d25cb490575d. 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/ZA56E2416393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95c6c1f43658ab0d80315a6108a2d5b19e2efe6b8bf2a3fab7d4489cfa759e0. 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/ZA56E2416392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9a4bab95d29d8c306cc19d1691529195131e0e377a27cd99566d46a447f866. 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/ZA0AN2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ca0b0d2ab39bf652e6ff82434e3d70d778d443ef5b741cd77d914a28975eec. 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/QZWFG2370644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ff0592b55fc7134fe570042b5e8f821d994f9a05a33f08c63bbffff91e92f4. 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/ZA56E2303366.
4 Musketeers (Areyeng Ke Game) [feat. TrikoDeep]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f39776a93a8d82e8f50e0562a222b8682fe11c60524e32edf95b206ae597c7a. 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/ZA56E2302213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04861ef1b327e80856e26d1f36db6f56aab35af63a151ad5f9da2b6f97fb512b. 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/ZA56E2201604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9598116708fb87d3ec1f2d545a3747828579e69caa32a620bd91627adaa43157. 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/ZA56E2201311.