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 0xa6a77de1198308623be67e05f6ef693220861fd3fa1cfc2c302a8110bc08b428. 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/6f59aa84-f681-4a95-a2ae-fa312b2277e3.json and https://artists.proofprofile.net/proofs/artist/6f59aa84-f681-4a95-a2ae-fa312b2277e3.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 0xd46fd179552cd1ae94489fbf4e2bad340225454df168cc2edef2ee670040e335. 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/USHM91902252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885bba5416a8584766d63fc50cef633aa2ae5fb53f184e2aafcd15f4087f1d1d. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/USHM91902254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0c1f50ffb4a7b937b62554d4313a26b92b178ee5a04a94f66b191935adc1bb. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/USHM91902255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65842ac35c32fed8da61e14c8efa74d1d713d6c79a158585ddd8c040b7945de1. 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/USHM92070689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c7c87060e91f645c07edd1fbfb184e906d7dda665cd7510975b4bf0f384f6b. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/USHM92070690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57390f384737d9fad5afcf5a5ca7f43e70f78b2b39b50241b724407ff8338df3. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/USHM92070691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2bf82d0c676eff6fc5c3eb318931db03944c58bfa7194db37a7c33eb8542f6. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USHM92070694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde94e193d7ecd1366f08d868cc5c9b9ea510b806f50eb05d0ef0af78fda371a9. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/USHM92070695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebc604524b57799545cfdcee3ca768b205ff77352b4d96376f9d49d53d970c5. 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/USHM92070696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dd0629a9866ae93bc6e48e26cef39d6ebd6c6cb1a1b292560ee8e4a711ae8a. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USL4Q2127038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd1b93cf61e85ad6a3629713631cdc780b25a0d34776677bd9df81ca69a8c41. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/USL4Q2127043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5972bc722347d0a158f15e9108d0bb5fe4ae955709c002d9f6d4e7fdab8627ae. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/USL4Q2127045.
Heading To Dreamland (Piano & Panflute Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe1718e7d5ce4e04c534df2cca550115e8a28ae17e5280e3d8e489e62c35829. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/AUGBT2456410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0959f5a7caa5f434ee1a2c4005259fe23868551057f94614c2e501992e602b4e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AUGBT2456416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379980dbe7620de11cf89118de1f656462298975bdaa86fcd529cb5c6f8f36ff. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/AUMEV2522396.
For Every Child (Theme on Operation Encompass)