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 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 0x0e05a854aa3214a2bd4d2db0fc4080b692a0058890ad61a13ea7dfef95d49af8. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b29614d7-a790-4021-b137-a62cf33f34fa.json and https://artists.proofprofile.net/proofs/artist/b29614d7-a790-4021-b137-a62cf33f34fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Look Like This (feat. Mckdaddy, TYOSiN & 24 Flakko)
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 0xf9e5d6fb35812dd345ee6a3a37169b8a6d71aeae78e20e5e588ef608454ee95d. 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/KRMIM1915491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4217fa77b35c231c786ee92e8045caeff4fa056b86788e5f311c36f67f833b9. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/KSA012123708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4598fad94c73c501c3a3b6a7ddca44cccd6f39a4b2b776c62dd9ab37875030. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/KRMIM2018814.
TROUBLE (feat. Chillin Homie, Ash-B & Paloalto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2a00a5f46e814f9652545625e26d8c8a1498d01e1d6131d3a480bd4be3c2e5. 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/KRMIM2021311.
The Kid Is Missing (feat. Hash Swan, Luci Gang)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb191a41385875761a3f312cc2581ffc0aea5451b80dba2557eac6ff3b351233. 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/KSA002303239.
No Fake Friends (feat. Don Mills, SINCE, CHERRY BOY 17)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5317a72372741bbdeea490227d87f8f5d920d8da08131d35659a2b557719ce. 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/KSA002303241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934a7fef1ad60975fb0c01e39eed6e10e94e5d6e4d5da7e6c4e55ba581791abf. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/KSA002303242.
Dance With Me (feat. Keemhyoeun, CHOILB)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcc4a6104bf3b7a0f723701865dc33a6ac6ea79a481cc25c05e934c4e8c15de. 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/KSA002303243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619f505eb50372e4ecdc7e4fb94308f92248fd60eb477c3faa0a54acc10ce75e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/KSA002303245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f33bf3bb6bb8771ba8ab67bd050c90aaf7b0e4bba697b8fb2ac7eb4331f767c. 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/KSA002301187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe829248f707eff37bf1bcd619b0a623387b9efee4ec72c1495f6067809b6ce4. 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/TCAGH2212031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf662da49a2a763a5431f52bf2bbf9c93d1ae3c35e8d502c38fd37016d37678. 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/KSA002101186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7573b9c00846c296ee6c957f895147bf0b7bcfa19b54e75f391f7833ff441f. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/KSA002101187.
Take Off (feat. Louie of GEEKS, yongyong)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c0427519056fc1cca5d03f550472d5032da40e982de831d688cd17fb2fe9da. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/KSA002101188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3b33269b6ad293089a121659f4fe1d67f349a4704b663bc8ac5b950b360cf7. 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/KSA002101189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a220dd75c3f579688d9ac713731172b9756799b8cfd9164295e83878c87a4c. 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/KSA002101192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca1f12f42dbe2fb4462da678d690f423915f620da198bddd74d9d5107476117. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/KRMIM2118570.
Time For Us (feat. NONE N' KNOWN, Alys & EUCYX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a99ab0f5f64453272cb25136864047e02629f905090c2c40e7490d4151d98af. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/KRMIM2118571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1a217f8015ea5c4c27aa9301b4c96a3af75be4668fc4ae772f161e9b5b012b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/KRMIM2106873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373b854959669cd180956ee12f4f3e06a1261218814eb79db8914c685f7fa9fd. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/KRMIM2106874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3de95b7c9a32f47fadf8575fabc82cc284ac0c5a6d43e75cbc67bc1d4eec50. 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/KRMIM2026598.
Still Want Me (feat. Keem Hyoeun & Skinny Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e5ca4987a2208507273f8a51c7335fb4ad0a05fd36ac1298207b7607a1f4db. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/KRMIM2000856.