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 0xbcb77fe88d88ca5a209f246f771aee166cff8a31deec50ad9f78413b2aaa31db. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c40c002-e840-4140-b438-ff401d4f72d2.json and https://artists.proofprofile.net/proofs/artist/7c40c002-e840-4140-b438-ff401d4f72d2.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 0x0dc0367f201c58ae8905156621e2bf64dac174ca9b23daa8e2fb187502bb5782. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:09:05Z), 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/QZFYZ2026903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e75941abeda092acda5dd71ea188a551f8fafb85ac3aa6754f3562d29f1f1c. 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/QZHNB1911706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e65490075f2f018791e25224b22951a86d898c3883e14c04c5c792c04fe168. 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/QZES92159536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56db888a555347300b6e8b6caf8a3e8565801165c5747735d6de719a61c69bf. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZNWY2126518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5912b140568db99940fa8d0e29eb8146e1d135e610edbc1b0cfef398a20d370c. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/IL6652204673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995565ec31f5ac78d0ae8dbde714d7ed28eb79404832e7e2f92804632c0fb2c9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/IL6652305866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee28b3a623d05fc30cf9de88ceee79f216eb4bf841aba6a2cb6d85107eaecab. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ662464840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b674a12a83045aa9ad2104039dc21da2c7f961ff07912c9bb67d4d422fbe98f. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZZ662464846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6984b7289bb91ccbc2d8c1a7548b679375782beed299b63ba390ad25350cfb3d. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZNWR2463281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168576854d69e8f96e1d95378176295e8e52a4e89d33a97be6167f72bf2eea54. 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/QZRP52491306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416de1cd07a2c6e466de0ac1000db1385c85314724862d1706ff9c5bd661e006. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:55:44Z), 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/QZZ7N2497411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7070aba53738eb70e6b7ea26495b92aa09d33eda4209ff49c59eb487ae2211b2. 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/DEMS42504427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683a1fac143a62e77eaadf0a8fe7b0174baa8b804ac820f0132bf1bc014844ae. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/DEMS42504423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed39904893b0268c1cf6786cc5e5cf050f9836d2fd0b4acaa6156052836b4f32. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/DEMS42504428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ae4423c32c683920495c345d1b7738a67740edbcfc5f90b97161a1ef5f96ae. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:04:05Z), 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/DEMS42504422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4604fbb1122a187618a8bdbef48a257a5383de6e11309bddf5e8855f3ee7406. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/DEMS42504426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac5fcbec3d9f257cfb068504cebfd50f2ee3c092c1e0c1bfafee9ade3d9690b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEMS42504424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8917ae29735a07ec99ad03b0a00734bee390712a8172f963690103f977090b04. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE3OH1729782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0557c159fa04c2b54eb09bbc7fba800bd64e53b84dfb141399d6af7e8e63d5c4. 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/USLZJ2002844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d3edec84325fa159fdccdfaba6973100dba057a8ce97327fd2ae65f24539d5. 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/GBSMU6416203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4cea66bdd68f17948313be1973b52003184861b5bdea11ac7c68200cd8c64e. 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/CA5KR2032548.
Can You Hear Me (Champagne Drip Remix) [feat. BAER]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9a4142d4b6dcdeecbf2d2ab5356fa7845598c9d33784100416068d73a1548c. 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/USDM31916221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eea6407058db48247dce0d003d16ca5a75ff1df0e5edd25f0c086a1c7007656. 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/CA5KR2183669.
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