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 0x41838d48c2add13b270a3c69f6cb190efd18238e1cb64ccf23cdf2ff85d3c799. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e03c7988-6d03-4e5c-8870-30cb22fff132.json and https://artists.proofprofile.net/proofs/artist/e03c7988-6d03-4e5c-8870-30cb22fff132.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Need Your Fire (Sebastien Dutch Remixes)
We Got The Fire (feat. Cleo Ice Queen, T-Sean)
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 0x8f2b38a005698e3a11cb0a038696aa009ac804846913434d98aa9ac86ee2692c. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:34:01Z), 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/ZA56E2002890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7a3da0dbb4db1293d5289ddb8f9d14e5250b60d31a4d7056e626e507143b26. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/ZA56E2100441.
TOGETHER FOREVER (feat. MAINZA CHIPENZI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2914250f34b6bd4f15c4398120a60f74696e1509e810117c13c90c7499a53fd3. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ZA56E2201590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2860d1de6fee0ba62b0bb82e26a524f8accc18f558d7a163e415ed9b4b89ccfc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEY472470237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d57dc38db088cad67a80cfcf2faf440da35e89d1116ed03cb10cd61d618eaf6. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DEY472478076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac80417882b6de11bfdeda769c2184a5876c3934c0681b53be337843dd438ffd. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:30:51Z), 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/DEY472574565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6832b44f13ccb562e5aa5dfeaf8d34412ef817fca0b96e7cbcb4b75613173c0e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ZA56E2529505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99a02b29016fe3769c3cf993bff00424f6fc7bda8fda0e1ff4330c0b8d66833. 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/DEY472377454.
Mask On [Feat. Natasha Chansa] - Live From Lusaka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ff4708a89f85126c9deb413a9b2e6508601e2c69557ba855bb0dd910e1a85b. 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/USC4R2333127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f427c7ed9d34d616b6c2f8aa81faf7538130243cc1527fe9b8768aaac116e4. 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/TCAEZ2099147.
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 0xa1cb4d74172bf5e2004cf331799998df505f63eecd3a7d2c683f7d9067396cd6. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/TCAEZ2099155.