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 0xaaa4a3804d23271958f753e3dc6d59bff00e216f7692c9a24ae0c98a3d8f1747. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc0ef713-4445-4d0f-8532-7c61126271cc.json and https://artists.proofprofile.net/proofs/artist/cc0ef713-4445-4d0f-8532-7c61126271cc.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 0x6ceaf7e8479f23d155188609111a12b4d48706f0846e362e532179be287c34d6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2312796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392c02464a395265b12a6f97b4b696e2859db73373f893e4b1e711be66197423. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2312797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bae382a3c19a203855d67e17cb58af5b9bd7ccf704ed6ecbfe667301807598. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2312798.
Blade Runner - Redward & Eddy Cabrera Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7581e22aa754c6c0435fe0434a3bdda86a0b0d356d8432182a2f0d883cc5bd3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2312799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5fe1b5944e976cfe586e1248711317d0780569bf7e2fe2fdf599a5bd8d6d50. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:04:31Z), 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/CARE92201494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646e490d9f770816f6e3f245ec9fe4f93174ca8da64b8dcb4ac13c8c73cef295. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:20:32Z), 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/CARE92201495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f8c4a4421dbc26bfc0f3b8f57ebb05eee60e9a3d4eab984e008dc9f9220f61. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CARE92201496.
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 0x4fde5a83fa4acb36ed0e6d2a756664e0e63ddd716ea10ed19362608483c31778. 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/CARE92001296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee34de4e96d387011a39057a7b7e5b65a9616d836e7064595779ce7714b891c. 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/CARE92201505.
Already Mixed, Vol. 25 (Compiled & Mixed by Below Bangkok)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f16437138190204a449b745c3af7c402fd39c4f1df3132557e40073d6d12f2. 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/DERH82066001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf149cae99156485cc19e599e65ae3e3a37307edc862b5403da1579f8b7e60308. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMGR32190690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27139309e230aae10b20fece78e3fa6afa858ec743dabc95c8f4960e3dc682c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM4TW2168364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cd1a597145249d026d9f073c5a308e403bed0030540e11717d3b14e035d29d. 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/CNZ682100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954379ec8ed4c02ad191cf41e4e944f777b5fb707b4cc09d43e5e29d9692e8a2. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FR85U2000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e58dce4f585b6266beae114cbe16c9c12612c98a3363a709c7d8ba4c9a10578. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/PTEN12000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d19f836b448e1ad872388a0aeeb9ecbcff6837a41859af1d678fea013e8ab4. 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/QM4DW1806564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbd18fe86891b33d9086fecaac47d052a63f39ec1b1405f9e5c6fba78257ab9. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMFME2051809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1b6f54161fe809c7540fe87b122f372c3d4e65946eec7662abf2a0f4f018ba. 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/QZK6L2025467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dfb58ed7b030706f605dc201dd74cb1c06824c60b900ae4b3af3819f48ea7f. 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/DEG931913291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c27c0891782ec1fecc609017664e02562cd43524975e4cd89068cb8f6932597. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HRA042095477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d67d7e106b0e1ab4b0c78c7b08c6c6162161ec0417c7563dd2f43859fdc574f. 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/US83Z2046756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e380673afeed4ba4d71421ca25cbaa103189c410b028be5d87ff36f0346f473. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZFYZ2191880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0465b3274e5ce820446b3cfff9491e4276862059032313dbae8e2b57e1d22f7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLP7E1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0916307fd3bda5cf021ec11dbae0dcc7efdda3f524b85d7cf56fb5d3e9a53a. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/CARE92001350.
Already Mixed Vol. 26 Pt. 1 (Compiled & Mixed By Rory Cochrane)
I Wish You Were Here - Martijn ten Velden Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc471ab9d296ca825a68f372d2176868a8b0d742c5f46a168cc898e8f7d8387e. 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/CARE92001335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fed0fcb502ba7f7eb71cb6e5f16b288157189cf6df59664f65d967d038f6d9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CARE92001336.
I Wish You Were Here - Stan Kolev Remix - BiG AL's Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1ed65eb539cc680061b327e539ba07f76bb9c209eada021dbaae323228d45b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CARE92001337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59bfe4fd0a946b9e5d4890b78daabca1bbe803605b5784f3853b8919dd713cb. 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/CARE92001341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019f664381ff77c3ab7245b5ab7bb4fc2d9e90e9a286b147c7c1c59c81f07a91. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CARE92001302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390d92b1e416effecb699c74630a6661c23f0d36482f91814ff857a64e6f6c4e. 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/CARE92001305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9443e1fb56e13a96dbb88417c8f989dbf5d0538673e4d3d6bd26864ff153cdda. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CARE92001304.
Already Mixed Vol.30 (Compiled & Mixed by Tidy Daps)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f611480a64a47d22326abc0086d67f4af63588ae90adfad991b7488ac44ee4c. 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/QZ5FN2070829.
Already Mixed Vol. 28 Pt. 1 (Compiled & Mixed By Jonjay)