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 0xb7f8811cb4d1b8151e5ac31a80fd9519947ada4d5a722216a8844339b20b99b9. 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/ddcbd5be-77ce-4bbc-86f9-9aff28f36666.json and https://artists.proofprofile.net/proofs/artist/ddcbd5be-77ce-4bbc-86f9-9aff28f36666.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 0xc0a8ab04ea742fd584335e7751c08416ecac6f38e01082d0e79cbc357146545f. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/TCAHI2391948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20fd0d52df9f33df0a91d8b8e908448140419260af521c60e90e670161791c1. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/TCAHI2391958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc8f9f2cb53c4c46d44dc211e9d57e61ecce79b8081be16dd3a6e3369cc0627. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/TCAHI2391969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29df7f84338cf78c1651bcceb9f1981af5ef1300d7f5277eef8eba8dfdfea656. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAHI2391999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605d2f0e93ce9983bc75746767fd7afb3d706490921115ae3466e030aefd8c0c. 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/TCAHI2392003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c4330975c44b02507b81a5e6a5e6abe7d21810450c044449546ca73719763e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TCAHI2392018.
Is That Important (2024 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a11eca1fb229c5c3376083b0e5fa05ff6011fa4dc79baa009d65560415707df. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:38:25Z), 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/TCAIP2479067.
Forget About Jesus (2024 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d54771f23419ddb5b15d17b04d1aad5dec4a3275032fafe6ef44caa05181d5. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:19:09Z), 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/TCAIO2479138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3e0e324d2c32b138eb8086978f8fa1383c8b877d9872cab5e3e8126c90278e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:47:37Z), 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/GBAZP9700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4eca2086f0238f45d4deff98f3fd3f65195876580c187a6c20d11bbbb50f947. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T06:50:12Z), 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/GBAZP9700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2086dc615ed06a5081fc67e8c52ecba8859f76e28da017a5d3faf051e77843cc. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:30:57Z), 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/GBAZP9700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea67b47f996e0f95caed14404063a1b9b2629979e33348b54ff62bdf32023263. 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/GBAZP9700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634b498d385a304081f51b0df9f0ff7f15b00843e3cfaa2cc324903c5e937df4. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:37:57Z), 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/TCAGT2389349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa998121becb0e4026cd007e99f91966070a31c7b7cbdc14b21533f559b8a47a5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:00:18Z), 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/FR59Y2413302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5067c17959b15407cf5cba4a782eacb2367655edbb28d68dda93f95f5532020e. Chain 2 (Bitcoin): anchored in block 957625 (2026-07-11T23:15:09Z), 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/FR59Y2413307.