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 0x63fdd4fba923137252846eb5d9b52d7b4d7312093ad3b1aa83cb8026165d8507. 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/e096585e-cd9a-453f-9e90-32510ecf214d.json and https://artists.proofprofile.net/proofs/artist/e096585e-cd9a-453f-9e90-32510ecf214d.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 0x2b24f69523c704efe00d69f8ca72e7e8307b0f3f4c2300c8cdf54cdcacef0ab1. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USWR30000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b401f9700bfce48ddd1277e142547040c8b41a3fbf54e952b5b7f5254cdf99. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:22:48Z), 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/USWR30000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c7dbc44bc7898a30651806b6b7ce9f52606b66c665207df453475997560af6. 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/USWR30000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8db7d26e5fa26cc793fed1384e5ad54acb40a302c40df8432e1a90d09ee6c19. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USWR30000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36de743f17f7081458ee6d256d44b2e481d8646075b1c9b59d1604a72b15abba. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USWR30000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08126ec86d434a844349cc9e48b3e4f52bf868c9b05d0a33c0af747d0c031c5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USWR30000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b5fef88e74b8b203065287855b8e8362d3ac6f162c409d419b215fd3af91fc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USWR30087301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d1c98d3d825bfff4052ab8ea702f0d925fbea3cdd9cc2867cf417554ccbf76. 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/USWR30087302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81790b42d3a69d6980bc775864046631302660bd48796b4c4d54f401a2d2373c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USWR30087305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8d433e43defc20330c4319b0d107f5bbb951578357b02702924223e601e69c. 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/USWR30087307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d62e64137c0cac89570ca1ed3abea91f8dce9c343e287a4648b221b4ab00a7. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/USWR30087312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27872271c19f9fc7ef9453c5b414008ecc3358c56bde6972a95f0eef1c376c15. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/USWR30000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720b74805d6331663d6f50033b55ca13bc7669ba711c84bb02b25544b73dd94d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USWR31400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6719a8bca56959436f213888de5ad9d6bfa8c284dc63a38b124886d392a5c8e3. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/USWR31400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5054ab9e50efbc8afe841d918174f33aabaac548046e7bc7950aab7687bd77d8. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:30:34Z), 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/USWR31400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bb37dfcb9ca372a340c31249831cd18b931d4da93476faff048990ffb1c4d6. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:43:05Z), 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/USWR31400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6eb709068637a9523b54066d815c10339c5d1bb724b0f215751668e469bd855. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USWR31400034.
Just Like You (feat. Chamillionaire & Paul Wall)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca152ca8bbd7b253b28a956998960878e93c8a0b176d459601716a7ad048284. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USWR31400035.
Don't Cross the Gun Line: I'm Still a Clown Mixtape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeec93556315ab60fb500fbb6ebb09c5ac3e9fa1b76d4f7a13544cff7e621c6e. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USL4Q1943070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d989ec67c7ca614ff65bf523a7ec1eda0a2fdfa2b99ab445d4ad413d5cc4553. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USL4Q1943072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b6a792551829f4613cbfc997b903a4c09b9606c9caac41a3def05952993a78. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USL4Q1943074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bc9c5827fdf9afbd37db4ad77fc36ffe12cc5e174abeeafee5d58946745839. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZNWW2140978.