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 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 0x9c131c2809933ea13d9149e6d170b46811d14deab6c813a375b037efefeedcec. 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/2cf8dcb4-b6c1-4279-a559-ccd9284e4cda.json and https://artists.proofprofile.net/proofs/artist/2cf8dcb4-b6c1-4279-a559-ccd9284e4cda.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 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 0x57901eca73038547e623f33b990f2519c34fb5116dabc405bbd4dd1c01b78556. 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/NLE710739602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b797465f8583c9ce0119472fa4c73c131308ec041869158457dccd2eff39c9. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/NLE711299601.
City of Sin (feat. Joel Madden) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5aaeb87bc0f18629406a057f7b92a8c95a79dffc410499664444af6bf425b2f. 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/FIBAR1300201.
Lifter (Alex Kunnari & Sean Mathews Remix)
March of the Cloudbusters (Extended Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8490ed35d1a0ea778413bca56c2be9a4eb442e1a99f52afb78ea8df75610d74. 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/NLF711803393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe430d7be604db4fc1d206faa389ce70558888f045fc1c696905d887ba5b5e6ff. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/NLF711905798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1149c886e0bea991fd5805a1050d26853734cbafccffd51148293b49f3e9eb1c. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/NLF712003937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3128083c90bcd2b91cd86bc36e8813ed4c0b3368c3996b1a5eef437e260692. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/NLE712000675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09294400e4cf699dc4d91431e5bad82214e1c98956d0a1a88697c9d33129e93f. 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/NLE712000676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13f28d73566fedcafe34717c2ec7345deb2b068ab80ae1e79bd4ca8b81dc265. 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/NLE712000677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba4a0c88ba2024c67870c9858a996155504a4b5c7eceaf7cd4afa24d6549fcf. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLE712000672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc449a45655b66aa09b713a724d7f41d4ffba9e1faaa03b4d19d882b5d94a5a4. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/NLE712000674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe5c01694fdd56714c8f998b5082a41a8fb530de633528c33d3f4ec26082953. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/NLD682102200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd69f3b26a2f93c9a947742bc7288e3cf37d420968f67c4f81aaaca4d91568a1. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/NLE712200735.
Always Be My Friend (AK Statement Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354129e1d43c56d64e04803c47e7d47d6f7e507abd8824fe4607b2a72138fd70. 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/NLE712400240.
Always Be My Friend - AK Statement Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc92da55fdfe8ccaedf8b7e6aab3e3745c1ad2e852e08ef8cc5f957e48e1553. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/NLE712400214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e1b4b2f400d03b2a5c9b00c8a253aca29956407538611ea501a3c8b0d11440. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/NLE712500177.
ASOT 1185 - A State of Trance Episode 1185 [Including Live at Tomorrowland 2024 (Highlights)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b407d4e188686ec4d588774f556701c31be8fc8f7797c67743a3a69aad6bf3. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/NLF712407144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83504bb29db15144e4aa34ebbd4de28fefecbdf5afa9f450bf44351711be5225. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/NLF712407145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc3e169027d86479b1ea2d430045a8c2bba53ee58b852c6747daddfa485b11f. 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/NLF712407146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f678dffaaf7bc3c87f0cf7dac3f7c3221d1799d7d51f60b9f0a09eff8bd0041. 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/NLF712407147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6123faa1ab3dbca019e5766806a56e466d49b2cc4ce7c8c4f75dee8ae91b5952. 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/NLF712407148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b9574556ad58fb705f7590fde4f992b250174226f6efa887db9c0d20a42961. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/NLF712407180.
The Love You Give (ASOT 1185) - AK Statement Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead821314aae5a278bf90a168eb09d8573c54ba7b82d36220f2906e45739f5ce. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/NLF712407150.
Stays The Same (ASOT 1185) - AK Statement Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf316ef8b3f3159e9ce4312724bb98ecf0daa12e9557da06bc4bba2b14e454a4. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/NLF712407151.
Anywhere With You (ASOT 1185) - AK Statement Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedc212665dc6f9f863228dc7d8e22dc81b648d482ff553d7d52fa66f7b66e94. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/NLF712407152.
World On Fire (ASOT 1185) - AK Statement Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20951bbd6f54891c97f7e66648a8139bdc424026581f92b41ecb45a8e41a6590. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/NLF712407153.