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 0x4646372ef33effaf38719623d3816e76fc444ee5a16f9589a714bed0cc1ee6bd. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f4eb7dd-8934-4bb4-b930-2d48a1887d71.json and https://artists.proofprofile.net/proofs/artist/9f4eb7dd-8934-4bb4-b930-2d48a1887d71.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 0x4bc2be83e46c60a47c2520f61e1935ae828fc8d5e2cf97121792662d37e03dd8. 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/AUBM01500280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b07c67949fe2760ec70b74d5537b1f93cec1c675384bfcf348d0fef6bec5b7. 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/AUBM01500281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bace883e79d8b21ca53cded7a9bc9072f6b73a9015829deafc68242fdd0f9a0. 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/AUBM01500250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8aa722392bc9fd6aae5cc2379f0d4a814f21c081c9069314cae95574224c5d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/AUBM01500282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb01c316f3ceb147a650b843f040116feac4d327dff9de5d6a17462aef6a9b9d. 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/AUBM01500283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d10db6403c8f0b27b437ede04fb80a534ea553fdbfcdbd44bf2f7da5447983b. 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/AUBM01500284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae09af5228c723c3222a0dca51d69df955d25e6745ee4c58436572944dcaaf3. 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/AUBM01500286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba47112bab5e135c8cb63c8e4b21f696c33ef460f2a0296e84986d975c362d56. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/AUBM01500287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5e8cc915e3ca438a29b79e23b46ca4f2e72284b8c3d641fce8ffbbff7a7d0c. 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/AUBM01500288.
Thaaas Riiigh (feat. Joyride, Merc Swayze & Nicky Cash)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505f4fb0d9a06c3b3a3ba13d989ef5e15fa08163a775b37bf6b5475b77ea92e6. 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/AUBM01500289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605c9a7b741a924ab1b9af9f24a70935b82804810ff51a4fe788ddd950d14453. 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/AUBM01500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b83d4d7861e2d23f2c692234407c928fa2428eb703b70b7de1a261ec8ffd02. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/AUBM01700584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa127f8cc9c9d71537d280372861138b56f5231810baeb97ce400c347fb54ad. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/AUBM01700493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bace883e79d8b21ca53cded7a9bc9072f6b73a9015829deafc68242fdd0f9a0. 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/AUBM01500250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a66523d18b3bd590347aa148846a617f141525bd418505b5fba3ac225a4a42d. 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/AUBM01300516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55eeaa9176b8330f6073b60e2c9a5bf5003e91901c507d2ad3fbc5c0d3588a10. 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/AUBM01300517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff1f2cfe3afb2898d7bd00d63ad67070fdb30e08517c82ee9b694b512bb28e0. 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/AUBM01300518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ec1fad0565093dedfe8c6fd65e870df4a70ebd8759261e6ecbe834f3b0bde3. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/AUBM01300519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd50518b401b01c0e6008c5558251d5761839ddf0775eecbccd1d16b8502c865. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/AUBM01300520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c945667c6e7258a6232d0c27786b4d7f2c510ac1288fbf77a5e506d514fa55. 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/AUBM01300521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7072a2f29d79e089f4fdf2ef5f85eec3524a189c911f12e2726325e528113249. 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/AUBM01300695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13336e8489f6ffdd33b1a438e5670c455795e9b33523e06f316f5be0fe159737. 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/AUBM01300696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb994ac90ffb5ee590ea01ed712ca4b90ab4cad0864ffa47da28bf6be78652a0b. 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/AUBM01300503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15620e5021d3dbf82594655938ef570f13065065f64dccc6e564b30846e591d0. 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/AUBM01300697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae07325d226b320c9d64f9ad7ce674893c8fbf82351e93fc9e3571219ee0070e. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/AUBM01300698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62cba954674e7635fc0365655f7b77554e256e61d20263ec82435b78b08bb1a. 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/AUBM01300699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf903f5d9a9300175aecdc67b00cb6ae68563d868b7cbeea447847ceec34145. 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/AUBM01300700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13336e8489f6ffdd33b1a438e5670c455795e9b33523e06f316f5be0fe159737. 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/AUBM01300696.