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 0xa203b9aedcb4b266e1d3d0f4d0b3b64cc70dca0b8c188d27587ca8301d9988ed. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/424f19b4-05f4-4464-93aa-8bdf5de69a73.json and https://artists.proofprofile.net/proofs/artist/424f19b4-05f4-4464-93aa-8bdf5de69a73.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 0xdb8e3f0947cac4692fbc05b5291825a8fcab7eb485261e275b1e7ba6253b948d. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/NLM700600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded5b13c842ac0b0566a1ef71a15367af85738f7b8fb054e9edb3bd255a3cd99. 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/NLM700600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd452fa42764e64742ae1c54eb7a2efcb73a3b3ef0e7371b354d430c1fbc120fd. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/NLF712502514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd69556b94488d6f305e4e9adfc66ff743924b172e9be3bd5b93ed9570faf2da. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/NLF712502515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50b3946cefc13fc3371813690173c710b4934d9458dd2efa9d0149e6cf7715f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/NL8FJ2500169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8e3f0947cac4692fbc05b5291825a8fcab7eb485261e275b1e7ba6253b948d. 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/NLM700600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8e3f0947cac4692fbc05b5291825a8fcab7eb485261e275b1e7ba6253b948d. 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/NLM700600007.
Give It Up - Chocolate Puma Edit [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4668555a34fa9b763bf6cc53f85221ac1a2f3a0482ced2f68e6ebdf05deefc77. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLM701100001.
ASOT 1183 - A State of Trance Episode 1183 (Including Live at Tomorrowland 2021 - Around The World)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7d460a1916e177699768e0af991ffedc689d122503e03bd72b4d680b007cd1. 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/NLF712406775.
A State of Trance 2025 - TRANSFORMATION (The Official Album)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73adcc44af46678b5ea8b01dd875f8c5493e8d6488515b99b884eb93aebe955c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLF712405995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73adcc44af46678b5ea8b01dd875f8c5493e8d6488515b99b884eb93aebe955c. 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/NLF712405995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd66342a31a0cdc6f680b985d430a65d931870b7d5fd2a2bc72ecce185b88511. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NLF712405996.
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