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 0x878a79dbca4ea7b1f47a7996b7fd63d89ab8bd4307a8f0b7ef2bf5cbe5103837. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23cc21cd-08bd-4df6-8045-9cabef88a190.json and https://artists.proofprofile.net/proofs/artist/23cc21cd-08bd-4df6-8045-9cabef88a190.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 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 0x58bec34fd56d074c5e230d78e239ccca1006d8266520f8ff3f38d663218b0462. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/KRA531701477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2976b8df4fc69cec4def00aeecd23b58479ad1c73ae1cc9199e9725ec96c2c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRNAR1803060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa8ba0a5b8ddabffa493f39d37ea02cfd185e12fa13ff824ab0b2bdcce1f96a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM6P42098114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e76980ed7f563da0cf9efb0f32987c0f35a2847b931ce94c54595b55bf6913. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/QM6P42098101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4270e96a9d5680f27165def1db26567da35b543f5303eb61a1105590549230fa. 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/QM4TW2331062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4270e96a9d5680f27165def1db26567da35b543f5303eb61a1105590549230fa. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM4TW2331062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1987244f952f7a6022d857e585ba6fe632a9a0a784aafe26518d72043bf8d2. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/KRMIM2468988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153c1f9c95934e280642c91b84911ac9bade4f1da67f7ed2dc0936d73d66da21. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/KRMIM2468998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9670f486d23f73ddb28e2033c3bfd64fdaf198596898adf8f4e6b91a3b82c6. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/KRMIM2468989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13528c4c89c0cad4c3f065cf10b04fad3ac459903da83f17d30da036a46d156. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/KRMIM2468991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd8d31375f9f0c7e01deec8f30b72a2a5c1c8d918fbe6c5db2f187a10f6f5c0. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/KRMIM2468992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0972f07987cd99540c39f4a8e70225a1d3525338813fcd104f23e4a7f37017a. 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/KRMIM2468993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bb2e0cd2c98d0266349d408ab92b7e84f38064e842183b7c6b82f01efc5097. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/KRMIM2468995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba49eb46077efea77cf63cb641ee7a32e9873c86d8fedbf65f519b8edcc02f6. 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/KRMIM2468996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4504a51b9447ff8404255f4d5555e283f15b725b302a65fc8f8214e15d668d0. 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/KRC391700037.
iScreaM Vol.22 : 28 Reasons / Los Angeles Remixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10131a495432385c3257f4082801dd0aacc29797774f71b8af755f93394fc5c3. 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/KRA302300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac4f0babec0a867706a7e3caafafb36253a18727f6a0cfcadb805c95ccd26c6. 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/UKPMR2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9e6a85c78f60c9f75d5e21c55023d1a7c85184c55863e722fb8aa831249ae1. 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/KRB141800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad1c22b935b426fbaab0252791c8146f4641fde4595fdde79ffd9d179646bda. 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/KRC712000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad1c22b935b426fbaab0252791c8146f4641fde4595fdde79ffd9d179646bda. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRC712000028.
somebody like her, Like I do (Feat. CIFIKA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01831b29f482292404b8226a1d2d0c7f40d96caa92b85d8e6c4803f6b873dd5. 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/KRA381801128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2265110ad8b0af9b8a88b090e7b0b2a9f7e489b81196b4fa2ebc9af83d57442f. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/KRMIM2445896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4148f41a553138974330aa1d4093399ee7ea7fee09efe8883e587752e4d645. 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/KRB471800458.