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 0xa2457540c6a0d1825102b316a72dbeee20e8491c99d3becc24b713f183fe2ca1. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7adad662-8173-4fb4-9ad4-aedf08ed5e3e.json and https://artists.proofprofile.net/proofs/artist/7adad662-8173-4fb4-9ad4-aedf08ed5e3e.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 0x6267173caa549ce7a933c3ac4564ee623ceb1f88d79b8addd682d2df177e57e3. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZMHM2435435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a278aad14db5cf6a4e614ddfd9e82c578c4b377c59caf3dd93123e9d822453. 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/NL3TA2327102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762f3e23cd6b9bc82295825c34a17f73c1a86d13cea5dfeac88e1e8a7e6d4af7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ITB841900707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5b39e3abfc7ed27f1272b8fda1239a27a9c500bc6aabe58d4dfce8194fa1f3. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/ITB841700434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568ea3fa32ecc385991e1fd8be24a0078bd7d4282ba1bd0495df8efa55d65686. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BEFWX2010802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6122a9e8d21571e649a28183045b4613f5876a96eee0a01b58ca432ed397d1f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BEFWX2010803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b25269ef9180f2ab527c3f3e77ab697d467b9d679628b779c36b84ce708249. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BEFWX2010804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b1ece3e799412e561834ecdb6f3b7240788c973ba936ba4650dc3fb6bb6d23. 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/BEFWX2010806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf368c059c445f49a7712083f28ca54828e7e3b1724af181cba70949c56bf940e. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BEFWX2010807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812861a914a1b146d1a2ffd9bda3580a86acb8a8a89fe18a6167e246cd8ab6c9. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BEFWX2010811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb90100b1bb01b1b2d53a8e5e0b1de9c218c257bae3719268585e968aedd87fd. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BEFWX2010817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c526ed1403725506d7e6e6532f5753910c8b076abd049a099429a13342871ae. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BEFWX2010821.
Let the Bodies Hit the Floor / Bodies (The Remixes)
Let the Bodies Hit the Floor / Bodies - Dark Intentions Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcabe72d8b51d05b5a22fba7e34b577dd60a08802c7d2e5f447f066f6c02ee1d. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/ITB841600508.
Let the Bodies Hit the Floor / Bodies - Francesco Zeta Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cc9a0d21bc58000b8fd8a0a80eef5e42b12f0fc07eecd01d6dae25c1c9958f. 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/ITB841600510.
Let the Bodies Hit the Floor / Bodies - The Beast Project Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bacccb251754201faa8991878a5bfa3646e771ce002caac4e290477b31655d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ITB841600512.
Activa 2017: The Best Hardstyle Package, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e5066fb88a37919bb9103c68772a4841e62ba4f6ee68f928134c5898c77268. 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/ITB841700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e980b0985505e64aa7d3fe4fa88072c10631c8c435893e7ac316bce8a63e4e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITB841700274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb7fae4daf08419634ce349d581098c5e299c16b9ac36058f933cc131103610. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ITB841600710.
My Winter of Hardstyle (Selected and Mixed by Stephanie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76587a67fc109a14edd14232aa01b4190e9fc04502e9457cf7f3f33737aac497. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/ITB841700589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd6f021c316378c296ab7cb8b42a1adb69725d063cbe6fd1945efa11600ab74. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ITB841700463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9224c47d65193bf16ee5b850a94ab3dc023699e98e0de6fc90f8f2a56f8da140. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ITB841700615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8810ac86d57e11fdea72f7626a7f99d86ba67cb04ad05c08fe31ffdff5f9521. 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/ITB841600596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec8d0e4e29b8de703d39b638d58c422a92ab13424275d8a69a14968bdf68cbf. 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/ITB841800046.
Activa 2016 (The Best Christmas Hardstyle Package)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6142572c0b6f13dbbc6723a4f9db76635cefd204bbcc64a70be9bb0ad1206de7. 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/ITB841700470.
The Power Of Hardstyle, Vol. 5 (The Top 30 Hardstyle Tunes of 2016)