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 0x1bbb0f812e3c3a7525d3a795f76058c40e0364d92516e868f5256a51ec8e6b78. 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/3799ba1a-f233-4b69-9574-1bfe98c8d66c.json and https://artists.proofprofile.net/proofs/artist/3799ba1a-f233-4b69-9574-1bfe98c8d66c.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 0x8b7359eb23ddb8c1df165a9adcc81f3abe9239af4b45c09e26957aa472575004. 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/USUYG1512871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf47915a238ae43cbba0299c1e8f8f4886720f48455ba779569752f39a5d013. 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/QZUCN2200528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e2058b332730b3ea7de667a26476374bc8cdcd5abee2fb5511dbc13f6d0382. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUS12400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674e7d47a2e1f823f53532e60bd9cd4c32ac54864f0c8967406bdb3b8fbae3b2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR2X42475931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c03489161cd3ee246ecbaa643e7328d428a9b0c86c0051a78fe71d6dd009198. 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/USRC12401146.
Everything + Nothing (feat. Barney Bones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e6b565a040d3cc71332b4c905461e00481e927b83e0406d7b47e48cf614b68. 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/USUS12400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb691547923608a300723ca26c40e67e16e3ab85a8908f648ddd354437c7a18. 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/QM24S2306794.
EASIER (feat. Barney Bones & Josef Lamercier)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bd27fa4a0832828a0fdcdb0fe2c0513be5477f50f0a0af2ab588677771575f. 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/USRC12301830.
Tighten It Up (Barney Bones - DRAMA Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13dd263b652f35a5fabb082693240754d57083d1c649fad54d1bbe38f4da6b85. 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/QM24S2300943.
Tighten It Up - Barney Bones - DRAMA Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4cc322d4f95573d351f98be06a4ed26b6db28b9906fab2681a2b24c191bfbd. 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/QM24S2302360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c63d0a3de3ba0e9c8ef4b565882f79504b24f01e5dbe867d90ef1e97ef6d5b. 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/QZUCN2200574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fd0a699e1dbef508f1ffb8a83df4ee5aced656da38712fa103e4dbbe284024. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZUCN2200377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf47915a238ae43cbba0299c1e8f8f4886720f48455ba779569752f39a5d013. 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/QZUCN2200528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e849a5d541e815187fe722aeff4f54b8930b0df9e93c5d8cc0af3d2e15bde3b. 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/QZUCN2200478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e849a5d541e815187fe722aeff4f54b8930b0df9e93c5d8cc0af3d2e15bde3b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZUCN2200478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e18626f7d105003283bfa6eeb9f0c180193d3060843aefabfed2d7e95ad15a. 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/CALVP2091429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994f86c377795dbd340855afe88299c4db0047599e0f4510c32cfbd3bdcf35e0. 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/CAGOO1902098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd522f270b42902bc791d3768222a198b86993ce1a3bbf07d6aaa604dc159ff. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZTGW2401516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7359eb23ddb8c1df165a9adcc81f3abe9239af4b45c09e26957aa472575004. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUYG1512871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a63d6ff06fbdc9ad487b6e00c250926460c63d9a36ffd4b88dcbca026b77ae. 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/USUYG1539902.