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 0x98113f78c261ad3582d2a96ab13dec9335ec8654a4be3faa422895ca44c7c6f6. 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/9523f323-4bff-4f73-a6a2-ef9c2c547304.json and https://artists.proofprofile.net/proofs/artist/9523f323-4bff-4f73-a6a2-ef9c2c547304.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 0xa83702ec106f9135d29e32ebd1fb7e8138ab23bbd331e7829d4b959dea1d6d9a. 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/DEG932004910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f40250d28710c2eb3f3c7f392b5aacc57fa9a57363a1973ccf728a80a8eda72. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEKS32100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cb2d84837233c469b1aa90693d530d019403f404cc266166fc6a0e0d8036f0. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/DEKS32100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e6ec25a5a202dccc17f9c25fe93611093d656f2d0fdd29f0e58c40be4449d7. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/DEKS32100162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf81cf2ab930e87b0f8d1a3d688ccb73569bc19b8e96cbffd1cce36407e7bab. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/DEKS32100163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e4448cbc7931d905a4dd929d042130e9bc81f50956de38047c99628d6db133. 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/DEKS32100164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fae12ce016f7fcd1d40ff1515f380fa9d8cc3ecfe26592044be31a82da46de. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR96X2275490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065f2532b386580745ba14d3f7889bbe7cce64de6cdc2b8d90e7845af5a9b6a3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR96X2275492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1271020540c56caf9480e41373fc27438191cba4db0afdb23f8b312a05910765. 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/CH7812237204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659ecf429eff5990e0bf6c0f1f5eeb6c649ae74ef3bb5dbc7571961e5b0041c7. 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/CH7812237205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d6665286e4c49ce254712048314c35f1ff73c1f477d556327de3047d9852bf. 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/CH7812237206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690b010cb6199bb16fbd1b66c3160b305647895bda7f656d39a4904ec62f7fc5. 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/FRX872442230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1281a5ae08e73326e9bb047b31b92ad90df66226f201b4a6bcfeb73ebf8f97. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/FRX872442231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bbac4ceb2e904e72ff5234a06ced5dfbf5ff988c5254e36ab1e155ea6414f0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRX872442232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227a70000b8f30407ddf0c747ae20b9dc9b046766b5fb0aa5dca28a406e7bb65. 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/DEG932006028.
Uncage Mission 03 (Curated by Hertz Collision)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc85fbbcb1419fc00af208a7070ed2427bd842ac27fdd409d25d7abbaede221. 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/GBJX32198043.