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 0xadd157b8d8dabd7b98b7cea043ea4c97347df1f613e06bd6e005f421fa0822d9. 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/6f9982ca-fb5c-4174-a84e-f074092c7b29.json and https://artists.proofprofile.net/proofs/artist/6f9982ca-fb5c-4174-a84e-f074092c7b29.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 0x5ab3b169a9a7bf9d2af6be97a1367a1b0f40a57f129ee4ca85cc44647a2fd89a. 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/NLF712307016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f567122208272a40e79ce928fd69e2c3a4740a845a6ee02714f8444660f89b. 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/NLF712307017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b02f7e7e92f29314038e428c1b168556ac6b864176ce233cc8fec3daf22b437. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEQ690100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab3b169a9a7bf9d2af6be97a1367a1b0f40a57f129ee4ca85cc44647a2fd89a. 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/NLF712307016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9847adb73765e871741e6756260279a876f2da6dcf9a51665f5a5cfd6d527e5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NLF712308094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566955972c35d983028cd1e155b7e0503c267fa394f7bce0fb65415056f9629a. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/NLF712308853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcb2785f8c07c3c50f1b2bc29c69521279d62bec6cebebe19ba6ff36454e037. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLF712308843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6afbdb3d2d11a87cb1373db7d2e9f9ce8adf75f8205c132941deb17c511b5b. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/NLF712307541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a72bcd50d17acc0e17cd110ef191e49e8260d56f028d5dd678c1489004ff64c. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/NLF712308332.
A State Of Trance 500 (Selected by Armin van Buuren, Markus Schulz, Paul Oakenfold, Cosmic Gate & Andy Moor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f51566b438801d4da2becfd44311aa4162ab9f39eab22447e4d77cf147c07f. 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/NLF711505105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49a84d560e6281c99f44c50fc22fdec1b15ba1683704c1beb8e26cf15034c75. 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/NLF711309143.
A State Of Trance Radio Top 20 - August 2013 (Including Classic Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b808cb6065c0f4acb12e0b1aeb9d449c8ef3bebb4aba5e02244d8f45e0438f1. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/DEQ690100022.
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 0x87a62cd94a61c9c54372006fc743552c2720d09d245e83b872ee1c5b8c053aee. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLF711312406.
ASOT 1103 - A State Of Trance Episode 1103
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3392edd94328088154191bf840d71eefdd9d4cd8fcb43eb4b78f2f4cb6a0d13. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/NLF712300316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db80270c1933dba9c6f7f8bec75425b1915b64a5ece1dfa24cb1485a6bfeab1. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/NLE801500586.