The Used is an American rock band from Orem, Utah, formed in 2000. The group consists of vocalist Bert McCracken, bassist Jepha, drummer Dan Whitesides, and guitarist Joey Bradford. Former members inc
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 0x3d52bef74058e84bbb144744a02ecd0270149a39246886f9a7e2fde979320ae5. 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/83c2d3b2-8c42-4db1-b496-d75d87335826.json and https://artists.proofprofile.net/proofs/artist/83c2d3b2-8c42-4db1-b496-d75d87335826.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 0xd402d8f0f3b28219afcde77bff636073dcd7b78d113b7f148086ae8ca9bf2edb. 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/USRE10700318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59b26d332e83c98b7b89d40766c9ca0fce3240fb30bea95670c4ec5f9564363. 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/USRE10400951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13de83716efe1c0d21f41d9c1fb8ae574ecc3ffeb2b2f39f5e8e866e5f8b6b0c. 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/USA2P2409883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80ae2bd6e57134b4c202a0caefc2a3e63baed9f4fb5acac59fd1cabd402b7be. 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/USRE10200741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5105d06e45e2e477d3210b6d35be7fed46fb0eef8e28e5694b66e3df65533c6b. 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/USRE10200742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b7eb654d21b33d1550b401ee63d95f50cbb92754c359e885370054c25cc250. 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/USRE10200745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac412f85971027f22361576a4190bbc0d072fb96ccd680e2362c2856055a9f81. 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/USRE10200747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1833930c2d7337ac190295933c0641c3e5405cd4430d2d23dd559833db603730. 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/USRE10400948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863e0b10fc03707941e361986b989a4ceaa281bd4e6f6438738637ed8e3ca9d9. 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/USRE10400949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe50c88a0066610e3aec5a87b631138897310c67b6e859a1ff88cfd319613c9e. 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/USRE10400950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b81639e3310255c2f91ac3c68ff9a296f7511afa1c0c4f8d9fee79f0aae8783. 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/USRE10400952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305ed3e9447db382f4bff52608c7e2d69fc3e4bb954141693b72df9c66abc83f. 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/USRE10400953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649b0f3da12351ed0d7f56e3ac879d60f57d32941c32effba526ed6daf7b4464. 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/USRE10400954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e99ef5431ade876dc5ad0a8e5ebeb728b6d72f7e4200d53cdc5fd8e3edf94f. 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/USRE10400955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008c9342925259a708277a62631c61870cd57b2d30f093a4c5df6cfd2efc6a4b. 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/USRE10400956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02137e382124a35cf214fe6869f6c1d8b76f0725b0c595ee23510d5ff9be3202. 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/USRE10400957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4e17d583c83df6013b226e0b151ad8cbbb2138b10a727b1b0b84454676d686. 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/USRE10400958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6b3305e80b8afd028b90c3c1e068f050f6c608bee3de6ae35a309e5f405ce3. 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/USRE10400959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560418ea9da4062eb13bf55c3d1eb5137458483583c84096228a4433c1ad0f82. 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/USRE10500450.