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 0x468e2c5f1348055d9e19f0ad92698b0129291402f6d0f45669c12ec54ea35cb7. 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/c27bdf23-a159-459d-ac1c-d3acb17c8914.json and https://artists.proofprofile.net/proofs/artist/c27bdf23-a159-459d-ac1c-d3acb17c8914.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 0xf0e3d144b802d8a7cb5a34cb2fdc543a9d6b208b44e34a339eebcd326299c8ee. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:27:55Z), 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/SE6A92030737.
Free Yourself (You Know Where You Belong)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34352dc952078c97ed9af4adc8f5d8cb06dbae7c0ca98e51c887824d6f8b6e2. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:45:36Z), 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/SE6I32073573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ffc08ebf226fb78fbfcbe6097ddbb84e362ddad5a02c9fcadc3664f978cdd6. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:58:34Z), 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/SE6QE2074616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8763532daa31504828e5396907a9382ad0d60d1316a7c28e565728abb2220932. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:56:25Z), 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/SE5752155372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6488fd3088aa8e273b3b1b24d203de891e2daf9615332ad913a93ee9609592b7. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SE6SA2114864.
Surf Medley: Pipeline/Misirlou/Marijuana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15f095318b57638f49e94ea4c358eea79cd615f3c437aa0e4349f591ef37947. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZPJ32120026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f73cf09caa951ea567b7c850d67732c23f0ddb9d33ed2cb7c1654688eb1add7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SE62M2165142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1f67731f3b84f93f2d880f3ba42947a6928d0269fbe23a96fe55554983d3d0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE5BU2220373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a3db2d6c178e24345e5d9deb083bbe69cb0fc72dc35db487cc396cc26aad8f. 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/SE6XW2241819.
Komorebi (Timothy and the Apocalypse Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2dee7553c32ad2d63e2d2cbd7c01d4df7adad1e14ba8746a1a27c64786d853. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/SE5BU2326712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ce96bc45ae7cddc2a55b26e1bed08e9eb85d6607db5fe25f03734526f78131. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SE6QE2307192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d67860d04e993f98281a161892ca7221efb2c8830ab000e439feb7316f2651. 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/SE6XW2389966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cefe0173151b9c238af3e3486d2d9eb7e26efb95668cbf679a4d917516529f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE6XW2214789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2f44eb67a42e7c08adff1893909d88018164733202574357546f4fe853ced0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/SE6SA2374579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993c235d50b7cfcda83ae381c60ec165f948428e4acee9643c09d78837b82608. 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/QZWDE2376349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e74306685e2d8cbcb374b089b980ac2d6a24c55213f491bfbbc651934d57c5. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/QZZ8A2394742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23126b469df8f3da8108860cf028416a27eaa01f94029fcb0f9b92efa3e6f40c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZZEB2396059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe177bd3a147bed40f77e7b0cb34e521a5c96ddb2b712685c5ae58b491901d25f. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/GBRKQ2460749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcae9aa4ad4535cbb395e473da07936705f78ba04f54574c30771695da60030. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBRKQ2460762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe177bd3a147bed40f77e7b0cb34e521a5c96ddb2b712685c5ae58b491901d25f. 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/GBRKQ2460749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf662c1e45773289e2cb5462edb0d3316493fc740b2feaf80e23fb462e9452f. 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/QZZ8A2411709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0178fe4682eb6049385709a7f2a13ec2ebe8774b95e769adb0ebf9b3f01f8822. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZ5FN2529210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c743482aeaf048cda916d5d9ff2221408d11b721c46fce9ccb7ea6372764fa. 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/QZ5FN2529216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f9947129e1fa1cd5b96d429e04302d74f586d44c3b1863a269f3dc89c8612b. 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/QZ5FN2529225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087663685a5f7fbc8aa0eae098bb1323b9775a5f5bc991e247f0dbe31afc62d6. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZ5FN2529232.
Lovin' (Eric Hilton Trust A Thief Remix)