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 0x56529f6e9787070710ec0aa865e76a76f4b6fb02d98c0f14e10a83e85d3c00f7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b601fbe9-a2e9-4176-b90a-d7d889b2ec8b.json and https://artists.proofprofile.net/proofs/artist/b601fbe9-a2e9-4176-b90a-d7d889b2ec8b.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 0x75c5e949a2ca1302834c7745c618eac08f68f49796b4ea90747315b474ad313f. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GBWUL1115971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9073b9f911c478f6c3dd1ebeb7d233ae70856860ca53a4485e9fc5904a3158. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:09:16Z), 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/GBSWM1100520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1412292590229601664b8a917fc047269538465fc485b4a2899d54a3fc5361ac. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:54:36Z), 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/US83Z1455920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbed3b057f3bac1374c14238b6f4940cb2579108b0bb446f8cf08f2dc85bdbe. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US83Z1461752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c3a938c178a7494bb7c8ece63aa7058769590898ebb5b95945ad40dc452fbd. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/US83Z1461754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd309dc0e5cfdb6ad5e18c4d8f5e700a100d6d4c60fb82d201272528bc92f6930. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US83Z1469516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb57c9251c8ec6032cbe9906b9fc5895bce5f240c8138ff222c9d5baf81cca1. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/US83Z1637612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5ece70c6362005bf6d9103b7b81b465c8e530c5b2a39debe7d221f924537bf. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US83Z1637613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29f671b4e3a9d3608fd3e63d7340dfeefb0e8e805673f77a1d2f8d56c8744a3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US83Z1834481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29f671b4e3a9d3608fd3e63d7340dfeefb0e8e805673f77a1d2f8d56c8744a3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US83Z1834481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddc1a674383bec2344785bb7e1a1a2654f909ec682744eeaef0959d4aad9e53. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:40:11Z), 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/GBKQU2231127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf051db55fa2994383665358d748b6ddad310ee4b9c92ed66fac18b32249e272e. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/US83Z2531542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7eb1af8027f99cc9e7b988de2d1bbb64db55620bd5dd5368e6e11f46e018c89. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/US83Z2531543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa7a3b8aa97d973fd855cb1fe5ad0280ba117fd6f3cdec09f087d833f0070c7. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/US83Z2531544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd4e5ae3b5759e01baf31844e5319ee02f96dc30eb09387d6f6ebf1340b98e5. 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/US83Z2482001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8b4c443f4514a23dc89f5b746d298fca8742398cbbeb5192eb764e20fee19f. 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/US83Z2482000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe433084b5725b9f0f7a560a86df4a1ae4aa48cc84877107d5db9aec3674f5a9d. 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/FR6F31645150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec390f5a4408d167e0ddd19dd96820476272f4e470299d6275f734b821ab6078. 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/FR6F31460210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b4118fd1cc1a94889f67e6d29efa2829b317a581fbd2fdff554a3212c880db. 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/FR6F31257410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef2e93175f0a504736841fd140c77f847e4c1c099f167146ca725ab22053a56. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/US83Z2495261.
Herneise - Christos Fourkis Aegaen Sea Mix
Obsession Lounge, Vol. 9 (Compiled by DJ Jondal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe2b9e5162365fe9371deb6c1c78a580ff6aa7a20d76c7c414c818055da76e8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEU231600800.
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
Beta Arietis - Beken | Boral Kibil Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0af668fb842643bc7977d093a43b26698987526ef5f2132a1b16caaca862f4. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/GBKQU2182945.
Huvafen Fushi Maldives - A Decade by Ravin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697ec5421f58f34b1e43db9b6c026dbd6bfc579e793744d6399e3ba10b402ac0. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/FRIDO1401270.