Avenue Beat was an American girl group from Quincy, Illinois, composed of members Sami Bearden, Savana Santos and Sam Backoff. Backoff and Santos were friends growing up and met Bearden at a theater c
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c9253c4e83af8a4bb861975ef5b39485d1e52d7eb70a66820a045244fd46d4. 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/15c3c360-3206-4673-8995-3a52cddbd6bc.json and https://artists.proofprofile.net/proofs/artist/15c3c360-3206-4673-8995-3a52cddbd6bc.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c441f4e5a9e67e5c90e35e6bb479f0a6f60624f7097d5e77f5512f28c7543bd. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USLXJ1944002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9393d5edc0d167cffe06175ae00026072af91a8da4cc0a1466bda10e3d7f70ad. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USLXJ1944004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d92d75ae5abeed3539f106ab6351a2e521354189c89170225fa93a39665937. 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/USLXJ2044014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ce043d503bb8018fd0b9d179404df7d7a3245fdd6f05b9d1b71670aa655cf2. 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/USLXJ2044015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ec2f6997081de2eef1eda11c66070746de90e546ab2968f5731e9c417f8b68. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/USLXJ2044016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fac5760d2e1626492391ece59c752770be853f3cb43b2935ebeb855437a5d1e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USLXJ2044017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985fde9f8548c8ae407132fd951d9717eb1cc6409666b0ecb992d02f8534cc46. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/USLXJ2044041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce70d779132ae8244d0af6744f2984f85a55a4ec0f065dde4927a1180c7db4f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USLXJ2044078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38021269050f071123d1d5e1b56dcfcfb7d570f3830f46de6f5de17d286b585f. 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/QZRD92100539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691b335f8c089521ac1290c22ae1e3446c8037d5def8851cb179a7b88eeb56d3. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZRD92100541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e97288b38198062a9726cf60f49859cde046d3c6a85d2b94c59994c235ef2fc. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZRD92100542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3b642702d101c29f703625124b759b1ef5f2659494c572a608ee7c4ca09f94. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZRD92100544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2414447f415364c52570caa8fd73a1118fb87a238ae2eaff93e70430d1e7ed6c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZRD92100545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d5cbef1a4652e02ea032dd5355c929f184310648cf912ea19af8df4f00723b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZRD92100546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6339610e9b3241a9c5d27d38fd3ceb49b73af230378b644d232581189d884638. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USLXJ2044040.