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 0xddcc7f6605a5d6740d1b1a1cace028be1c62fb6cd7607a4eb9cba683b5e301b7. 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/62e52bac-1c3c-481d-b9e6-02cdd6887761.json and https://artists.proofprofile.net/proofs/artist/62e52bac-1c3c-481d-b9e6-02cdd6887761.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 0x7df031b836e7b182a615133a127800f32c9f1edd202d3b57f822272f43c2c4e8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IDA142001653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98617e6877ee030f487be0df91b27e2b4aa929977451f5658b285278bcf9322c. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/SGB502234668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980dc3143606c8929f676f29c7791f0fa69b1bf52b6060bf15bbe0c2334bc8fd. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/SGB502234665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63c9a2531747b1c0dad697f67bceb18f437103c8030197cbd94ab9cbf28c176. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/SGB502346703.
It Is Finished - Live at Bali United Studio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a70429b2e146ae369540732ac6a06714e93271766f1eb873cd12c20b107080. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/SGB502346701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc10345b83c263a223fdd051881f0ab5f374248009ef31db039a50c211ee8d8c. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/SGB502346706.
Yesus Yang Termanis - Live at Bali United Studio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e23437aebd33a42afc00dfd16b45f7adda107199f7421d6a4319487f4f5a00f. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/SGB502346704.
Katanya Pengikut Kristus - Live at Bali United Studio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c1bb7e15cf17c33e4b211985d802eaaad273d9d4462b8b0e6a5104540e53e9. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/SGB502346702.
Mari Menari - Live at Bali United Studio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61229d3adb9d5c6eef49db48acfbc2bb0ac4a2d8ef1f5cf7ea80f6337eb06642. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/SGB502346709.
Gembala Yang Baik (A Message) - Live at Bali United Studio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae00b696c6b2a4fa2e9db53c431cca19c0e927875fee03e83b2f97c31e5a460. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/SGB502346707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9352cde24d84ab889223af23936c377d2218e2f8fbc3c27c0cb4598c2a4a3b. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/FRX282415007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93068b21e65e5b2a8685ade8385bdb6ee52a9fcea007d6edc1a7036eef570a96. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/DGA0S2421069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7999ef3b542a0d861412a72ac525bf5da18a3fe43c7550b97e87b923357d4b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DGA0S2421070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e09b4041398fdbda758d9a32b4722c16e757fe7e65aa4d6e3bd21592943239d. 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/DGA0S2421072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8297e97496ab3a3caff5f56d94043d1a1caca3481cca8d84e1b358b864ef4d. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/SGW502264997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc624328174ca9395bd77c77bb34899545f3a2ed44e438fea4c5caaa01c6a93a9. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/GXD7G2543199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b7e5bb80e470945441e8a737f9b481fbb05369a901d5b09b3135733ffd6020. 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/GXBAV2124062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3adea77f28820c0331e30dc0717b45304a3e0d206b3e18794bef22e890714b. 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/QT5M42565652.