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 0xb13f62f7b59cd2bb18303930d14cfb99906e38250957218e2ab946521df1fe2a. 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/683981b6-7e42-474b-81c3-19bdbeda95f5.json and https://artists.proofprofile.net/proofs/artist/683981b6-7e42-474b-81c3-19bdbeda95f5.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 0xcb5a85adfb65f9def989b8e3599bda1e6bb0edf5d97db126267a555de7b0ba61. 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/FRX451539078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d716e056f2992fbf3db297716578a383e28425e2e80c1ebee91f5f9e6e48878. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:22:40Z), 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/QZGWX2013351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d716e056f2992fbf3db297716578a383e28425e2e80c1ebee91f5f9e6e48878. 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/QZGWX2013351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb0689064b27648a7e3304ed679f91ca887985eba966f7e240ddc9706d0a4d2. 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/FR6V81441782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bec7a70afb19a61fd6db8288aa31319dfaa9c379d5a0095bdcd047681eefa1. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:51:15Z), 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/GX38U2234282.
'A mugliera mij è gelus (with Antony D'Alcamo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58803739c6389c2fec587ea522eaf8fb85afd5cbbd53e7b8b90b2db15c9ac47c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GX8KD2424949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281a9acd66bef3ceec1ce6f4ef1ee148e510e5e6c7e89e786ae46933d8728270. 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/GX8LD2450065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ba7d85efbb194ea3b73e930a838418cc425778675b26fbb1e6d5add4ce288b. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:52:33Z), 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/GX38U2417921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7303bc5a12cec6b3d2becc5e71c4aa50cb43e15f22aa886406d71448a35f649. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/GX4R52496730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055ab726f83ff1084a6c7b396042c3557ba8d740efc9f6ee2a40e47a99e39240. 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/GX4R52486503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8ce6f4d04bc1962472df93dafbf5377c65b67e85d1afff2a2ca7aba00a52bc. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZPJ32408403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9970c13aed4d6e260798e4e96755f79b7d0dce9c861b7ebead0f42503657ac. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZPJ32448291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee6de822cf7c599eae974a2fadd8a59e5d255fc8df022da2fc1f67e0d4b7cd3. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZPJ32490822.