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 0x2351c1051fc396c0e93fecfd99f9664cf1ad8e8f217e7c5d304dc08ab518a2c0. 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/8acae376-5791-40ec-b50d-b2431f098073.json and https://artists.proofprofile.net/proofs/artist/8acae376-5791-40ec-b50d-b2431f098073.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 0x4d347794ac59b8581b13d0f29bb02ba4f93464b859eb9da997f0981ba1209309. 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/USAT20109638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8596856c304cafcdb2a6502c9eee17aa90498e82218881c1e5ced53bb4f5f86e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USAT20109675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46c90ded4ccf90affa2152bb4e0fdddce77f44d1329225236dab409a5e0d037. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/USAT20109677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8885d445ba681d4a42b9b0867631b5c3e7ae94a5da22eead2d35cd383398e31. 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/USAT20109632.
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 0x6d585e8e2a8dad4435a3b989e6839a01b1dc25fb4572c209da9aeba5c810738d. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USAT20109635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e4cbcba544a2f2a97ff04f52235d42011cabd82801078cc5976dc496c5b727. 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/USAT20109640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290854bf65fd2adfd1d68a1f4bcf47bc7c0f34fd1d2572c767da7f4b70e30299. 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/USAT20109647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd295704f4887f15f1eaa2055401ddf5bd99ef7fddae3090e0e96df5eb67c95. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/USAT20109652.
Do You Love as Good as You Look - 12" Forever Funhouse Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f93903346b0bc4057289336fbec6e4b00f328292a611b7202701557da330728. 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/USAT20109676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a648602f05e4cac370d8944a3f66b4718dfa9b6c627a09138f22f16b61bddb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USUM71822028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a41305f61d46f40c062ac6ccbda3a6a2124b8b0de2991bc9e9bf7cc13cf44c1. 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/USUM71822029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6511a90e9aab64c5c724a8f33adfaa5000b785862dd2611209499a093a6e67. 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/USCA21000462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7a46f3b9e50a1206a60ef128872f4bc04c5d85d2414685980350c623925e1a. 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/USUM71822035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8f96a8f10f936365dbe87bccc8059ff25b4b5b3c25d72d6e7baf419e03110c. 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/USCA28701261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdda0e8a2af7a6214efe0c5fb1bbbe6b03e4419f7ebd471ffd47a2ffcb2fb52. 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/USCH38700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e4ab64c0f1d2979aa4ec7d7db9dabe0739af417b752fb992a4e0c3b198bf82. 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/USUM71822030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4127980b387e83ab583c473d89ae8619c6d959dc7308fcbb62671a80e1b01a47. 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/USUM71822031.
When I Fall In Love - Jellybean Benitez & Mena Keys Feel The Spirit Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fefbb0595c80e89119af8ccebee885982cc83338af49de1727bdbb13f36bd1. 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/USL8T1000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf614406b44300180693383142876b50f66919dff4f60699ede9b91ecc2e7d2. 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/USLT80900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd335185b7d94fefdcf2946bab408b0657d524f4f3723c72dae854815992a3d5. 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/USLT80800005.
New York House - Ain't Nuthin' But a House Party Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94c3653fd00d81882553affa3a0189d0cf6f580e06ebd3670b1745b40bdc098. 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/USLT80800133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efc286690cd0295f7d0e69ecb180f8c81dbe47b80cec3bd03827baabfc81f2d. 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/USLT80800134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036e9d297aa1fbc823a480ee9812f5088079823cf34b28f566a79ff4d2e42ac3. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USLT80800135.