Mr Twin Sister, formerly known as Twin Sister, is an American band from New York City. Their music has been described as chill wave, indie pop,Lopez, L.V. "The Class of 2011: An Interview with Twin Si
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 0xfc15a3943a583a3650f72ecd215529658cbdece26eaf119169300cd97ce5e369. 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/dd893623-9976-43ab-821b-063eab9e72b2.json and https://artists.proofprofile.net/proofs/artist/dd893623-9976-43ab-821b-063eab9e72b2.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 0x45388b265a7fbc5b1dad9932baf0761515344d4a4b8876500884f371647b6a41. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/USTCY0900199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4e5a46662df0e8fab15490f9b63117508bd3961884a2ed035aadf4db729690. 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/USTCY0900203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9e2ff6c7ce528ecc3559a6a01ab486b52075e511bdf9e236714e4cb1099ca2. 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/USTCY0900204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cba7d7b5abb93525e2ba69418ad83cd15a007c7050fb4286e152d7de51a023. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:38:53Z), 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/USA2Z1010460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9262976b78c7f260c2eee73cc9b175ed91e35a0704f910a08fb985f46de1c38. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T03:45:58Z), 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/USA2Z1010462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212b130167fd2c77a73f706bc264bbe03a4328c78bcbf426ece60a7c1b8abed2. 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/USA2Z1010465.
Vampires With Dreaming Kids / Color Your Life
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7078c17dc37c54333f6b1cc0b42061b1442c3b0272fb94e6a33b1b08a83ab35. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBCEL1000425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa890c35509e909ed202c22e1cc1fc61c089285ddfbac1f70fbfb151504807d. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/GBCEL1100296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db3918c277e1f0c6691e0071becc6e73ea68c0952148577681d13075c179076. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBCEL1100297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa371d6f02ad2e353b0c45ef8d26ff5142578b04595e5a34ff5e396823178ca. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/GBCEL1100298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d49cec7747bc2cc76ec0c097e57d6b95fade3351801d16e4e1fd7502760f82. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:05:25Z), 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/GBCEL1100300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84cbd4fee44745b019d52d124c36236d9a6c5511a1808d30fbe66b5d6df81aa. 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/GBCEL1100303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db3918c277e1f0c6691e0071becc6e73ea68c0952148577681d13075c179076. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:43:54Z), 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/GBCEL1100297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa371d6f02ad2e353b0c45ef8d26ff5142578b04595e5a34ff5e396823178ca. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBCEL1100298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cfded7f61ddfbf7af0e5bb74e8f9feb10ab29a64bb9c58340256996b8e5694. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBCEL1100299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d49cec7747bc2cc76ec0c097e57d6b95fade3351801d16e4e1fd7502760f82. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GBCEL1100300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90df9260ff74bf5a39589f55847c12c65cfe3b0faa15d6207bb0288cf202d78f. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBCEL1100301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfaee4aeed59f4f00c7d2ca061c71b91ca81da51c00c7c9c1ca3eb97a9ae044. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBCEL1100302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbab19d72a8b6edea741f8436e19b0d87f0952905330cb6e305cb5b459fe0610. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:49:45Z), 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/GBCEL1100305.
Kimmi In a Rice Field / Bad Street Remixes
Kimmi In a Rice Field - Balam Acab remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd2b5b5b9c6bf325b26d296a30d37ae7089567350efa445266cc48d89ab2b8c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:39:38Z), 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/GBCEL1100721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2293b804c78a0392c1f2953b18266f36bd9747d6880d5828a21787443e1f4dbb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA2B1401758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d710044e198e5c6e5356c4ea3594a82cecc95f2a487fc39a40cd6d65dcb7790. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USA2B1401759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e9648ce1434f1f90a8f7094f177580a440430abdf826ee5f2c624dbcf56bb2. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USA2B1401761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0c3648ab37ed8d23fd6d12231b1938bde29c72e6adc2809bdd55ca6cfbb929. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USA2B1802055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3395a5b2691ba6c95e706494e773afdd9f1aedf860a879325ba64386505141. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:34:22Z), 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/USA2B1802360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbf58c8273325a15e118a757737753cc86739d8f7483feda72057b498779c5e. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/USA2B1803310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474f5a88101985b5d506f1ebd9ef669862e2bfcb856afc97221d8ee8cae5a426. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USA2B1803313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ad7d522b518f0fed1210b1dd4f7094c07036d401a8bf4d7c116ffa5731046f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USA2B1803272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed2a704af211723a9870c3584d66ce6e67be90f510db1ac3ac242f65a58eac8. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T14:58:26Z), 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/USA2B1803315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655d9e2828af963fa078aa3a146e3f5530ec5d7fd2d80d76d31e09766d9649c5. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/USA2B1803316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76816bbf59c65c3aa153d3dd0a5ba7b41baa426ca92dec5952ac42a3826116c2. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:33:14Z), 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/USA2B1803317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e72eb16cbf946bed98964dc592bb3b0fdd3b7e4e27e0fde91518376608f021a. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USA2B1802722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e2b781e43db531d3112fb95400b8ae878e5897794a096afe2e9e7006606567. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USA2B2103846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6327a8b5e1d3644a1baf761c213e2656796b059dc9c8a9d246c2d6df97ab04b0. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USA2B2103848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbff8cba9f09859d1ac11179df3c7c0bf6c703df490c1b9895a7fe2fb01c1fc5. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:56:15Z), 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/USA2B2103849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705233cd0490183fdbb8d279e42e379a94f1828fd175dc8d93bdd2d7bc0ab388. 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/USA2B2103850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f3337037024f9011baa45b4df944540747f2bc9310a7d4382f26597c86cc43. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:27:51Z), 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/USA2B2103705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698f8aa6ca1187b1589eef1323895810d80ec7e4077d7d4f85e348534116741e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:33:35Z), 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/USA2B2102453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022ad63ce9c9b65870e0ae6d54e3803a4a3eab0e0f92bd59a6bb7806c42d5b31. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:21:30Z), 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/USA2B2100794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881eeee6e87d70e359678ab55df8cec044d913a41585c8b3a5546f89f2c1e7d1. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USA2B2205030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62df9898e8bf2f7bc3cfa6ee029129377d664406ff3b37249d977c97a32e532. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:33:59Z), 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/USA2B2205035.