Sweethearts of the Rodeo were an American country music duo from Los Angeles, California. The duo consisted of sisters Janis Oliver and Kristine Arnold (née Oliver), both of whom were vocalists. The d
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 0x4e4de86727b9eed3e1ae29c86cf31b44483bd745f0280094768d8b3df075c29d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da75512a-02de-4c0d-bf41-4862cc9170cf.json and https://artists.proofprofile.net/proofs/artist/da75512a-02de-4c0d-bf41-4862cc9170cf.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 0xdd1df91de769435a70a7d25ed766a7d7817742da95e1d423b7a681667ad90421. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/USSM10005125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb525980d770bbbaf045c0307dd8bf0ef777ca5074f085f4089897e3dbf635d2c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USSM10005129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ec06cf176f97428f3c8c37684c1c6a8707bfc09e7fdd0a633839c7f146c955. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:10:43Z), 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/USSM10005130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9a18a9e04da9e457852870d132de516aabbdc27b69db1145891bed9719a9de. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:29:26Z), 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/USSM10005088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c25a19501592adfec17ab1a0321557b6d37f72d267487b226b8b9e7d6777d0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:16:53Z), 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/USSM10005086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600640688258965f621b56401a61a764101b3621a23150577baa519d0f23b027. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USSM10005085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a54bcfb6e719795f2151bc81cf91ada37a3d6cec1351152d7f6c45437e5b8a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US7YR1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6846628b9d2ba5cfeeac52e42a6c0bcbce4c0b51207cc828c46ee48a6271cc93. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:00:06Z), 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/US7YR1200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a25d38a2121ae4de4d6529af02a07834504088e0b38253b5da3f7adceef33f3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSH59642705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531a94486915358656b6da3c769c49c613550520aae716c3e57f7a6ca09816f3. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USSH59341771.
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 0x808ad85b6e88a8f1e2f156499a2880b186acd01cd2580094a6cbe1b9e1851bb7. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/USSH59642695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18b7d46df46f37ac3737c564e0ac80c15a6609189831335832337f3ef4fb7b9. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USSH59341770.