Leftover Cuties are an American band formed in Los Angeles, California, in 2008. The band consists of Shirli McAllen (lead vocals, ukulele), Austin Nicholsen (bass, vocals), Mike Bolger (brass, keys,
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 0x211f3e019dfbb9676c2a8c810ed1a31dcc732ba42d603938701acaa66218a973. 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/177e71d8-cd0b-4361-a18a-8c732d319e35.json and https://artists.proofprofile.net/proofs/artist/177e71d8-cd0b-4361-a18a-8c732d319e35.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 0x44f97f63c46f1272632b8803529257834dcad103071f7237fd80d498937adb70. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/US2HX0900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbdbcad15df5b9c915eea3f8037c05c93dccbc59300e061db99e6596c76323f. 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/US2HX0900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abc3a9ae3319da49737adbe1ab25dde1c0bec23038567c36aee494749174f8e. 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/US2HX0900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567caf0d4405e07b7ae49f617af472bee20b92342701a8ebcc3a5c21efec22fd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US2HX0900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cdc0016d533fd91ba47b51cf17e5ea52b5524d5237cab27e801d86bcea2582. 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/US2HX1100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b072dfc61335332753306d3a1a9394d35addb9df62bbc17460329faeaa51bd8. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/US2HX1100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd027df3346a6df98dd3b9c295090d297b41266191d468a2723dbe57b30a6b78b. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/US2HX1100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8135376b7c80af6b7caa4ea9fec29fb1983fbd473ffc5c181738426da0d83963. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US2HX1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b5630ee34d5e43b8bbb0ac7aa1cbde99e1ac048a929c31d6cca7186a241192. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/US2HX1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99225fda059cb68c648fdfc1c3334b02224b2dc25851a2473f9dde2e7279b5b4. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/US2HX1200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5951a40c0d111c3acdf913362f493eabe876afd1440587d72c51589c6ae7907a. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/US2HX1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4884bf2dd1e50ae8643dc5668f80e36c76a6a0a2383e62e3d5969ef519fb79c6. 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/US2HX1200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145003167923302cc25495002a02fd41959db187c8830c5d8b91cde46b6629f2. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/US2HX1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeaf8f906cda1090ef0c47b413f1f412b8eb922152dd6a5619d0f26818712ba1. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/US2HX1300009.
If You Want the Rainbow (Remix by Flatpack Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ac3e09d86411b1c67333d32d8bc4c1be6e279636531a5db47d725f5db113cb. 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/US2HX2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f214269f4e85a7ee17a160fc271ec34c947bc8ab80a57fe11f463de374c8be7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/US2HX2000010.