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 0x06685730f5e960597aae521ffb7d9b3c20a6ab15e452628a6b6b46d7c3b4caca. 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/c0bbf724-11f8-4e87-bec1-cf8d9db47e51.json and https://artists.proofprofile.net/proofs/artist/c0bbf724-11f8-4e87-bec1-cf8d9db47e51.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 0xde2d422a8f37f7f14832b29fad589ab0aa4d024b97322deaa38fcb1182b357e6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USG8S0602001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8059b1eb1d46b5647639bda4c7235dd5d4517d5aa9ab62a5670558588e17ba6. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:01:07Z), 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/USG8S0602003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a3bb207c8402046d4140cd4064bb82d47cf837052e52493896dff2185f25bc. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USG8S0602004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330b6d6ebdcc4c93090a363f287fb020a1ee43ebd6eba4506290ea63c1790db9. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USG8S0602005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd18318c5b8684317b589fc0d8f495cfdf83bb8a40ba64016a6160aa125d6320. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USG8S0602010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8186eb0d84518b7003727bc3754436df06b1700a88c2d329541c0f4eba91bd. 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/USG8S0602011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e51ae760738f7ce971e987ee7f664d29495e6fcab05fe15178982f4bc82eec7. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/USG8S0600802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4728d9049271fc4628565842fdb98092ea6e042297e60e7ef29f68fc1aee4108. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US2Y70800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759e67b24b546fa9a44eefece247b91250e14ca4ffbe8b31324fe38a093a64e9. 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/US2Y70800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f0c2315749c89ea8416ef097a70004aeef53adf3e880590f6dc89fb2bcb9d7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US2Y70800036.
Story Of A Free Man: Chapter One: The End Of Innocence
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a8cedd56e64b4f1545b90167d6ffb41caf5a79e59d42c141064228cf425598. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/US2Y70800037.
Story Of A Free Man: Chapter Two: The Cold Return
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f5fdf270eff14d84993486c66821b79df144c1fcfa1ec2d8ab6e1b06b4dcd0. 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/US2Y70800038.
Story Of A Free Man: Chapter Three: Serenity
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97de2174a1dfa3d5e04af9f2b42fadb4cf49ad9c3e2d98ec592c6a715a1f21d7. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/US2Y70800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec17b862bb86e655d68c776121d85dff45bbfcf37ff92a349868f2f9d6adf2b3. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:16:37Z), 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/US2Y70800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899eb1bb2f19427c4902af528ad98db7f57bb0df6396d1bbd24c4517cc37417b. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/US2Y70800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dc74f17ff924e41c80ff11f4a8a6cae08443122a04ba17634255e766f29537. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/US2Y70800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674219add022dbe788847cd3143fc3b1bd42c0e4ca95500f8cbd3312a31d9b97. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:53:47Z), 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/US2Y70809501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5e25dc6de4e4f4962f9474b6cd6bfdd4ebe7bbf293319b7d8b1b8535cfea3d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/US2Y70809502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02b5d38db91da609b2ea5a51345e805474950af7408dff8d4f23a66c2bd6f91. 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/US2Y70809503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5e25dc6de4e4f4962f9474b6cd6bfdd4ebe7bbf293319b7d8b1b8535cfea3d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:40:50Z), 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/US2Y70809502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02b5d38db91da609b2ea5a51345e805474950af7408dff8d4f23a66c2bd6f91. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/US2Y70809503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52a8d6cc0fbfa87e4ddbb4cb48c021b4c13a5c86dddce48a7f604516f4e8ab2. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/US2Y70809504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908a54337527500153edab7ad7522c9942281fab15ca7a6292a49e35048ff658. 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/US2Y70809505.
Story Of A Free Man - Chapter One: The End Of Innocence
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c08a7410553d1511a34fc356eb13355d67e2de36fc7b6118d313e469089a49. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:47:01Z), 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/US2Y70809506.
Story Of A Free Man - Chapter Two: The Cold Return
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0c399f540730fb9b582e40fbdafcfc2c5ddf86ef13fcfd96623b8ce87d9828. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/US2Y70809507.
Story Of A Free Man - Chapter Three: Serenity
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d261eb73ab97350b4a4b1643e37b07f5f84d41ba9a62e19e579660dc1040796. 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/US2Y70809508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b91430cf52fbca3318a72dee3a7f8db97251a65876f3b23d429907fe8dc258. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US2Y70809512.