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 0xa5b0d3dd9f3b89fea12ad507b9646f2d7e300279de937241d1f5ea60b432eeae. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8c43086-dca8-43b1-b43b-346fd6cbb5cf.json and https://artists.proofprofile.net/proofs/artist/f8c43086-dca8-43b1-b43b-346fd6cbb5cf.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 0x13cefe565ef4677a86d3e40d59e94df11e1a36b492f9acc7a6f2b40df30a967f. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/JPZ921211533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3c2cb578124980b5a79a721a3ab3348c8c7abc8eaee147e8d5193f24061097. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRY510777811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d07c97e2e02ca64b29e84d64bc0ee188d5edb3a200c14f5b751716954138cf1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRY510777807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b78167820e0bc8539fec888f639ef305b60e876e043f1cf1079276fc097c1a5. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRY510777815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf243ad398cf7695058016f459b63824115f15c58b523a708c405b8d9353b217. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR0W61777246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57eb883c3cd3a1e2cc30d492dd5a1739a14f25542c17d063d9df50c9359135e0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ITR551413000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fb5d4403b3d5cb0c8e07a9374d822b99b4a45e48980d1c23984d48c7f8d016. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/IT7151391083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707641f430a5e1a6317fe1576f8e3c5b153aea4aa1430a244c862ac391fae6a4. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FR0W61777245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c40172fe8c2df2a51f42bfb28fbba361591bc3a2d78b2858a6d25d7b203c256. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITR551413859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682e93d1bf6558b6b3965a6d61eab8cbcfdf605cfb7f8afb9eb33d64bb3e5dfa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITR551500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36d52d688af116c071fe3189f18e202f93c4785d48a8f8616ad7b92b21d5bed. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITR551413362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8943cbdd9784de9adb81d84d456e0623c71867fdd5725b08d3831ca263a9c93. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITR551500122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac15f1ee83e923f38819c841f6c8527b315de148163cd556b0fb9b2cec716eae. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FRY510777818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13cefe565ef4677a86d3e40d59e94df11e1a36b492f9acc7a6f2b40df30a967f. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/JPZ921211533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f2bc479352085d005bc02eecdadcdf9b494778baf54db6fd63d8b0b4f0162a. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/FRY510777803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe668680d83e57042d6cc30528abfed779e003ecb86e8afe0fe27885c9af80032. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FRY510777816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3f429203491fabcb1b5c8903aa6bcc5caa47014aeed93db5f01b32d08074af. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FRY510777819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfdb96ce031523df5f30a7ca3a5ac8b2e0aec348288fc6602e0b4607ed0ab84. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRY510778034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7de8b9ece8e71cd7c4ab7214897fe977fe040398ce7fb926581b5893dfe869f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR0W69921624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb009d7b27609eaa6f6f0a241827300bb76c51a9de2073204d1eb606fccb6ea03. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USHM82230361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc90785d9bb918b1a265bdf8af854f806b6b9fe40b0f26b6a316f53bdaaee661. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/USCGJ1620461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bca1e86cc5b677435f356b42373861c0cd8147bbcf81412283f781acf7f7ac. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USHM91417227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0148a5fd99f01e930fcbe81601b861c18ffe6b16d79845471b0564aac2d35a7a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USHM91417231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a74bc866fe5350c83c27618b609fb9d6036159f98de726b83cb4b27831c776. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/USHM91417233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1a2ca8c778cf4a1f411254093bba6572637ec75aa0c485bad6e96cfd3bdf5f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USHM81484852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2ed09ce2a2d43e4e839f104c4ed03c5b71cce05413ecca94779dd6443521b1. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USHM81483245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf794fde2b9a3fd1ab35ce1d27eaef7df7a0776d59814e44d065931668eea2e18. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/USHM81483248.
Introduction & Variations On a Theme of Mozart, Op. 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2adb44a94ff059551531aedaadfdb5fdd7dc59c8476141c2f4f96b1c69dc61. 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/USHM81483252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41548661d2daf341089c0e3cf3a8fa39b113f5ffdc4fe06f1c234c4ab9fa6f7f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USHM21361643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad44491d37ac2393192e26e053e180614a3f1aae56bdf61dc6de6bfa0c18888. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USHM21361653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4022f59e05d9f83bc72e28f897bb463e17851d280e6fb955f8989e427f5a73d7. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USHM21361655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d533bdd185778a4c7a1c492daa0d7b40f1736384f2c042fee57df23d792039a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCGJ0923417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea42bd7b22643a72feff15f5013ecea79fdc2e054c9c92e3bae20d7896ec4a7. 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/USCGJ0923418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067658cfde9b6858dcc9ba2b636c11d323e24bfc79d53c9eca20b2d83049ce81. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USCGJ0923419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e7fa7379fc3ed720fc5aabfb20fa9aa8ed84b1090741b3b43f6e38c74cbdd3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USCGJ0923420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8122af1f9b0607951c326960d807332be3520caca916e7f4a50c3aa86d544db3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCGJ0923422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d6ba7696532b1228c9b249e632f850ef58e8f750d89c6b2205ff7aa17f880d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCGJ0923425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce578c9a55c8b0a280b1c1b6c8c72c044da25aeeaaa092d2ded7a29e30ed28d. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USCGJ0923426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f7da3f078ceddc2cf25e79200aabb66a6eead5e3d67494d74c62f0f4d95e16. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCGJ0923427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a7f1f59989be1b3d04b9a04d8bc63f47ca959256cb3653135c4334d93c6f43. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/USCGJ0923429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d234c3629660bb28b90611d4798df700251ac761968e30a556300d8fa597027. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCGJ0923430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2970b5f440207755fb12243fc933eb5e7afddc90aa9096df73555f22a0b0df22. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USCGJ0923431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf729c059a5bea6e4f080f0241658d8d7f5475b635edd1af423560a90eca1b4b5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USCGJ0923432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad7b6ccac36772cdc812e2e3c3d12c71cbd5921a99b4cb7e29e45542b641c8a. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USHM91176072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be548ba86f0b301e72a8441e4594ab5d25e6feaf6f21361b0871f51b3b84da4. 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/FR0W61877536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7906826460cda0aaee2300687e336255d1443a0f8a5255aef8f52807456bf06. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR0W61877532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1b3495d955928ee187c87164a1b0f7ddb0b48f679ab7ceb5b5ae593348490d. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/FRY510777804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6d8939b60653db8dd18287ae97e2a4b1ef97833d55055eb2e7bdeb81eed1bf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRY510779704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268ead96cfe41c75874c68dde038852081f811d657dd7dff751b05f2761d6565. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR0W61877540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b034aceaa7c5350013482fc4ecac30075add326428fdeed1560406e6b4ee13f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRY510777817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03bb923b1c6d7d7c16790d5084589408a0b8d3ca130375231d41444a44e27f5. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FRY510778031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44765e324dad17087a71623923611b1b4f5b5de2921d179df401aedbe60748e6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRY510884373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe668680d83e57042d6cc30528abfed779e003ecb86e8afe0fe27885c9af80032. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRY510777816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2ded48514d2fc5f3d910aaf869339737984623ff03c9140935aa6e523c4281. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FR0W61877542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936890595407703a3a7d110b7d3fcfeb552f2d52b16a2a4d8a4b8fbd4867c48b. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRY510778058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd5d387c5735ce2221776cafa5181c40a768935965ed48c1dbca26306e7489f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USRDG0114370.
Piano Sonata No. 11 in A Major, K. 331: III. Rondo Alla Turca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d15fb8162a08bd4bf7f36eda10b349912ae73740b2835ec3f248cee3160e1e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USRDG0112451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed19c09454b19ca86c9b76cc8761b2b9cb3d9a57f3ef345194e3d2f7bacf8a9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USZDG0800242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda80bb9db546790724d8dce9a30b1ecf8c322e2c9788558560825b6f507b6e0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEA580700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb49d536299db3882805aabececd261a0a0320515c1f16a162d4d790d74fc20. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USRDG0112738.
The Planets, Op. 32: I. Mars "The Bringer Of War"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d20291f067112c5db99063eaff93698442e011c3f97e31144e87a05a2fd3d77. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CAM460770217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c02579d7cf59dbcadfca1ede33b2c5a77d7879e5bc1e47b37364fdfc6f1de4. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ITR551500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82725054a03aefd6992bdc31ae5b9bad728bcf0c943ced30ff46a1e0713d7f17. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRY510777809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b961dfb69ca023fdde7f295679e89e12c5eff5c9b32800d81b991d6e37b618. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITR551413842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb6aa55df4365f37fa2c009dfb3283926408a12d757db71926b441bd9b83437. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FRY510777808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1529d943158760a74e5054764acd802ae775b14fd5a72fd9cac96b64c58bb1fe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITR551500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56944fe0d11486db862f83ec7fe63085270a89cbb75aafb3b9502e8afe0e7640. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/ITR551413032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21c9af9e855aa0bcbc8c2e050429ad5b81904cf4d8e1f0d82549f72cc50201c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRY510778032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14ebf566d98ab0c6b46a1842286958aa803fb486041f461c7b5320f1ec5b0a5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR0W69924672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe668680d83e57042d6cc30528abfed779e003ecb86e8afe0fe27885c9af80032. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FRY510777816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06191085904e713401d69adb344431ba39d2339febb61432977026a98a921056. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ITR551413183.
La Traviata: Atto II. Un di felice eterea in A Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f2f6449faaabc2b7d52464fb1d7e6014b87405860f18c8fe875c9bb20a080b. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/ITR551413981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6060cad4e8291afbf79bed0ba494e8d70c394c77084477e9f17d4fb2e7e3647. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR0W61892003.
Spring Concerto #1 in E Major: Allegro / Largo / Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ba9ac08251c6ba7771e8073cde51ae13bd5410df18ceb0cd229d4aee3b4d28. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/FR0W61892004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8d005ae2ae8ee13875f3db5212840d1bfdae6794cce7d4fcc7915b634f2220. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FR0W61892005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23da8e45675b531e7a632b84d6c3b9dd2e778c43a70c9062f9c9c5f82711fcad. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR0W61892007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf63a9f138726bd7b9aaf7e8d71e4d076bf9e5d78683ae6568e171463ec5d15. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR0W61892008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7206824d600add42372183c313b9fed1e73c53f45aaffcc3ca000897fce34f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRY510777802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fc1a39e4b3a39735446df920ecedd394adb9d738e6094d8441f4673f20cdf4. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FRY510884358.
Autumn Concerto #3 in F Major: Allegro / Adagio Molto / Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560499ffd071537b2ce9a8db36602b646f19c801df47f85ae5e73f14bc5a5a32. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR0W61892012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1529d943158760a74e5054764acd802ae775b14fd5a72fd9cac96b64c58bb1fe. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITR551500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb0554e19def9ed4769529dabb4e46bcaae9243f9b9a22de01a3b4ce38a70d2. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/FR0W69973390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f32e6943f9acd0fc106e4704d0eb61c367f481f9ea8199e1c56ccdd8997e652. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/ITR551413046.