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 0x76f65035e34c97e69942b6cc6ce7507cb874d61be86f6e4e5d3cda3cb4b05ef6. 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/d6214590-0cc4-45bf-880c-f7dae50e106b.json and https://artists.proofprofile.net/proofs/artist/d6214590-0cc4-45bf-880c-f7dae50e106b.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 0x56c28c1ff8a4b18ca460129cbc14522d6b91c31b33422e0e2fde5a8d1944d0b9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BKDP52400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129d036fab83d474d026d59fd004a55fe2c28387678d1bf4bac038372c6236f7. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:11:23Z), 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/AUGBT2339524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13867dae6386c20f9e04b942980ceb3827bcbff354abcf74cd287772e4bba261. 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/QZZ662321984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040b5b9513a6acc27a1ac51957f47800369ee000487e84d9cca4fc342720c155. 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/QZTAT2470850.
Deixou de Me Seguir / Remover de Seguidor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcffe4d77f3797cb62caeeeafb41e724df6b00ec605f532f9031cbb79615494. 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/QZRP52467048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875930882080ca5dd9cbd43768deb4ef4b4be3b7c7f42b81573710e17d6557f9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNJX2459435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f40ecfa8ca2ec567ba72d2ce4f95d35dd6e2b3479d1effabf4131dc54871f1d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNJX2413588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36456773bbdd197c87a59dc66a7d460d59566d2f810799d4797e5e12eb98a396. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GXD7G2439907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2bf1d709d1508ca9fc8e7d5d9867b6997e71e3337333e7c1f6ca148e23ece1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BCLWS2400815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515b861913918f17c3af8d0dc58c80a1c78a59e96fb50e3a6e72caed8abe529d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZ5AB2434152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a060aa7ad4b86235c9b8ff210165c8703974cfede0ed06540185449a166f29. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BKDP52400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a98da9dd176a8757ae433503e0cbb2983ff08c2c0645d62ba9d0baa8647f0bc. 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/BCLWS2400950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcde67479d9030937416811a7d65d4eae25ab27adff3952abba545e2798c8479. 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/QZWDW2463108.
10 Anos de Azar pra Quem Não Chupar Meu Piru