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 0xd76d07195d7884afc1674dc2d916026b72bceafc5015dc7e359021d3c91102a1. 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/f00511e7-b2ff-4fff-9a96-fae51bae4b6e.json and https://artists.proofprofile.net/proofs/artist/f00511e7-b2ff-4fff-9a96-fae51bae4b6e.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 0xdc7b38eeacd37528f1173193bf3d0c1735c010447b15a537eaca8da1d265bd33. 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/TCABW1475165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579f5c69110e55c4c1c2bd9c7f5c629b1607d3856893e0c9247cd68839d1d4ae. 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/QMCE32000474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b49f156177204a7a55355cb236f31a24904eedd8edc1350082a81cb0a23fad6. 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/QMCE31600848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a870a1e2c4865074462e92c958fa97ad6419d6bb5c1c9ce59b2052d2ab61e05. 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/QMCE32100665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a625515a69b7fe4ebfed458a5f3cf02ff0bd291e872880720bd543292ae1922. 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/QMCE32100666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89e7bd9ffc552c56fa9db0f0db63b6038d6b6183ea18f553776da17b462098b. 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/QMCE32100672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf868e8513ef47c2cc64ac64e3453233f25acb51bb556212f5c9391c9adbce853. 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/QMCE32100674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59c568ea2eb2d79f6f96ecfe31f37c01f3aa8f9f1e73d58b4486ca8f6bded33. 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/QMCE32100677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b9306ec68b5a9fbf78c3bc8720bbbcd6197ccf1d3679201aa1961c11579c7b. 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/QMCE31902120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7d2fa6f92d693515fd3325ac9119b654f1e6bf10c82fcf80e1c84c855fb769. 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/QMCE31802019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2f34ada29e49f1c7dc210cf1c810bb484b14a9bb2430e4148796708cbd78ca. 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/QMCE31802042.
Haters Anthem (feat. 30 Glizzy & 3 Glizzy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea76129c38a4d6410154ae1e367dc92407a9dafaad79a07967b7ebf39fb1ddf0. 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/QMCE31701542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbfb98d171b28799c332cfdb84849280535a41d4254cd88561eb1d067ede751. 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/QMCE31400161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525e9763c71be6e55fa26d7f1950d72911dc5cd79fae3816eea5f7503f157ddc. 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/QMCE31400172.
Da Man (feat. 3 Glizzy, Goo Glizzy & 30 Glizzy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3feaa1d85bf44e56df8e24d5e56d1de6ca4469a616dfdc670e6ab93bf212a95c. 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/QMCE31400174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a625515a69b7fe4ebfed458a5f3cf02ff0bd291e872880720bd543292ae1922. 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/QMCE32100666.