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 0x1ae7542842b0d6ee1a451e5dbd0f6c6dbc87e1d49f7691cd58881e960a4efbd0. 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/88035b59-e1a0-4e0d-85e8-ffa384a329f4.json and https://artists.proofprofile.net/proofs/artist/88035b59-e1a0-4e0d-85e8-ffa384a329f4.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 0x4cf2eee9afc74177cbc7c09b9331f3aeb0ac129dbac4bfb92a1a4689a0a58dbc. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FRX281911361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5a168f6319065f23594945567c11afbe6b1146601bc6f55504cfaa7a7f46c9. Chain 2 (Bitcoin): anchored in block 957556 (2026-07-11T11:14:07Z), 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/IDA632102249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a2f8c6c353f22254ad931ebd6f003b05772274fde50a24a7835671b1acbd56. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/IDA632203092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8f0055e12f04d6e9d5ce3cb3d71ae21b3a1b3be5a29cea7898f51c2ca54660. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/IDA632204598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b89858041386a612acca7f4dc8c9dc155dd5c9f5df00ba6ce62ab8b25b0e6d4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/IDA632204984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8594154021f1cb21a574e9bfdfa40831ce705bcd6eb1b4a1fc93e1c7b78ac4. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:29:58Z), 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/IDA632205138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde9c34698043d5e0c367d47f07324506e6613f2beff0b91a8016e148287b5e4. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:01:15Z), 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/IDA632205466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73770b4b7b999697f20a581c5c8fea38d10c6aa81544d2f4bc2ce519127e809d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/IDA632310496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5acedfb041e5e603e7da0667c198ff4b8579ffd9e0ba7fd98210c4c39b97a6c. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:21:48Z), 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/IDA632311130.
Bukan Kaleng - Kaleng (DJ Terbayang-Bayang Kamu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f86670a232d526cd56490d6f6172f882c8ef992e76be1870469afa1c6efa08. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/IDA632419667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac7ce8fa08d74aaa6e4dceae3d3c607f6c8eb5f4f0c20075f8925ee5321c965. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/IDA632419797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8fb1c7bb531ac9dc340becbdcda6116c66df37913a0eb0c0d07ebb4418234e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/IDA632421604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec107f04e61ab00873dc647c2c26f18a3909ef1365c957fdd01f2e5ae00a7b94. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:57:34Z), 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/IDA632422260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3adbee54d66a22599e04cbac5e8d0e25d49b7e94f5f1f052d66a93f5283e8e73. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:46:36Z), 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/IDA632525735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f7df8bb846736ad4df8aab572e50256fb73535f4088962eda1f20374012bea. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/IDA632525812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf50f1e902296e56002f91856ebcb2870f39424876d4a48a52761f5a91d1897. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IDA632528653.