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 0x79b935dcc1f6c73dac896e255658fa0ffa1a2116dacff09cd30245008bb38188. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c0a442c-948a-4924-9764-4b4eba07b96a.json and https://artists.proofprofile.net/proofs/artist/1c0a442c-948a-4924-9764-4b4eba07b96a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hamba naye (feat. Pcee, Justin99, MaTen & Jandas)
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 0x845a6c1941777c518ec2c06a336d33ecd080925dd94f2d71ca4e52629e74fec4. 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/ZAA012300222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994885b107c68e22fa2ccf2f251a244cd59fc26f0f2b0455c0575c0aa212f4ea. 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/ZAA012200521.
Petrol (feat. 031 Choppa, Ice Beats Slide & Sbuda Maleather)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92ecc88799b6a9d05423e27142c15150c9b4ee869b327eecd65bf56ae3a56f4. 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/ZAA012300151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfee2c82ddd71f89ea16d800dc7cb06cd28f1ba7b220bd0e595002af84a5852. 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/ZA56E2315177.
Ncono Majita (Sghubu Sa Yummy) [feat. Uncle Vinny & FakeLove]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e80eeac616f4e6d386d3806a5b7d72dde3d1e3ea30f0c38e7946cc8e163fa5. 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/ZA56E2304021.
Kilimanjaro (feat. Justin99, Mema_Percent & Mr JazziQ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd777790a6dd1e1320bdc9119a7bd27a19c8913d98603f6860c049bbe85ffd28c. 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/ZAA012300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea078d8fb26ee744cc48b35f84375ab601c3f922194788adf55f5f97dc55a70. 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/ZAA012200511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845a6c1941777c518ec2c06a336d33ecd080925dd94f2d71ca4e52629e74fec4. 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/ZAA012300222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5599f17c8f56d79c63f8f95e078b5f1906d367e42fb7e57e92ceb4c5da8f72. 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/ZAA012300245.
Mozambique (feat. 10x Guluva, Yung Silly Coon & PILLS)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd7856da4268c98344876866f19a0b274f6224d044a6477602671ffc063ce9c. 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/ZAA012200454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5533eb07768c9b214d7171e021e8248d0909812cbbaef955572b97d50a5d95. 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/ZAC012300329.
Nomayini (feat. Pcee, Justin99, Vigro Deep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1bcc7eb09d0afc1976336f82df3a441ce8a985a837d00e1c33009e106a0961. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZA56E2306382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1bcc7eb09d0afc1976336f82df3a441ce8a985a837d00e1c33009e106a0961. 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/ZA56E2306382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1310b8c739c0b56f927778c75cec9c9e933c8182e0367e649e60d1145e7f6261. 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/ZA56E2201334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc740333ba94c6b8710d661b9759fdfe4cc7939c7e275190643a0a49e1a025f. 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/ZA56E2302083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37078bf451d8bb5aed400fd0c2ee35f88eff28ab67cd6e5437ee9e91d158a832. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ZAA012300294.
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 0xf9d75a1dfb4de05a243c2ff20da392dfe4b30f756fe4b873a9ee2ac48d29ca01. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/ZA56E2201398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301c314cff8a9acfe0571e7813e4b66d56c5851762f4ce76adacc7402438f967. 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/ZAC012301181.
Empini (feat. Kaygee The Vibe, Dj Stopper)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7237a53dd8880451b4db992bab770103c170e6e5dff7ae5cdfc7db5c114a7fb7. 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/ZA56E2315034.