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 0x05bf23bb51c2d6e4a7495098fc8b41ad03d9d2b1241539beb6b71475927e0d74. 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/6e0826a8-c71d-4c6c-9916-7947e49028a3.json and https://artists.proofprofile.net/proofs/artist/6e0826a8-c71d-4c6c-9916-7947e49028a3.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 0xf8b2530eaecb2f3d54a49bbd27a6e58f991b673da2127b9b73079422381dcd08. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:01:53Z), 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/USSM10007482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb28b63a3899cb6d2684bb3be864af4f4d0f873a4e88629265461bde0cfd1970. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:18:51Z), 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/USSM10007483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302dffa646e75d7e16e4bb56eb4183de9c3079fed963619f71aaf47754b81180. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:22:51Z), 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/USSM10007484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f0c68c95a393922dd7fa2253f99e5aee5a856d99d8c15546a13d5f4ac0df8a. 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/USSM10007485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785a7c1da7e5bf7286a9fc49954744da6650cccf374ff0e4f02f98a15651ad86. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USSM10007486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986a9f985f41439a6ec1a81bfa9193c33149fc26b1457e66166fe0d5992e8acb. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USSM10107061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fb4d2aa661fc7470a126a90c91b363fd80fa02997d878ea47a7b72fa87aaf5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USSM10107051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e476232f102b83e69d5543d86a39827cf93837a917699ac4c07bfb7d553f13. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:26:02Z), 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/USSM10107052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2fab2afda37200dd9ba8702f8233e5b47f80d80b01001d6eede0fa2111e2e0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USSM10107053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fb8eb19e469b67426d38514a65a1e23f5550ae1c8ecb86883871407733f669. 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/USSM17300811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6728c6548dfd234f4d76cf784ed47601fff128341378a1c5c2e2b2ab8c345d4. 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/USSM17300812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61e3c0cfcd5e71916752a1978501aaf9e7c1785ecf5d3d2cd86059fbc176327. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USSM17400240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2bbd1db723529085c613d94941f77ed11c388f4f5a99de8aedc865524c38da. 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/USSM17500984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7247ce2c0692e422bb834cdade4087e00c47e441fde5acc1ee89cc41e5b0d336. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USSM17500986.
The Argent Anthology: A Collection Of Greatest Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef90c23a389fba25d47ba8a7de5ba459549b9d63207aa0e6f991a18617fa7ee. 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/USSM17201117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3329d749ee77269068266cb5263b8b4ca729229506582569cc3977f9a4a6e18. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/USSM17200898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad5da1de92c514e7d567f2e798c459c799ffe465e6c994ba41583ef6fd13ed2. 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/USSM17400275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad5da1de92c514e7d567f2e798c459c799ffe465e6c994ba41583ef6fd13ed2. 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/USSM17400275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3263fc4321f8f99f0c7e3d74f9461d153d25dacb49034b1606c564dc21f6530. 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/USSM19907678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad5da1de92c514e7d567f2e798c459c799ffe465e6c994ba41583ef6fd13ed2. 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/USSM17400275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad5da1de92c514e7d567f2e798c459c799ffe465e6c994ba41583ef6fd13ed2. 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/USSM17400275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad5da1de92c514e7d567f2e798c459c799ffe465e6c994ba41583ef6fd13ed2. 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/USSM17400275.