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 0xcc6b71b4c80954e1188dae39226d27801b6016830ec51c7429e415e645666f0e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a98fe044-9412-4d42-a781-0e652c778edb.json and https://artists.proofprofile.net/proofs/artist/a98fe044-9412-4d42-a781-0e652c778edb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hardstyle Marathon 2021: Addicted to the Bass
Hardstyle Mission, Vol. 4: Ultimate Bass Attack
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 0xf7ca10ace5e5fb4ba689c76a76d350efd9f155546ac6a1a36ca2a0fcb141a476. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLH2L2300083.
Path Of The Warrior (Defqon.1 2023 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3564420bab6f95fb3a983e463bbdecec6d9bd8e0b0f5d5201cb5269fd660f3ca. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLH2L2300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3ef4113f1ddb0838cf7d96eb2be20b928b69f7508f5d64f9895235dfd90bde. 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/NLH2L2300167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16eae1b46e2fa22d0a8ea881ff801f74b4cbfaa7e850bd58ab3baa5347fd045c. 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/NLE2F2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a39f92dbef257377a0c5b5e91c20612ce360312bcd9675f8c51db166732df8. 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/NLE2F2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65c0066cc5d48b1868f1cae7ed7fbf66c507474863bf0a35a53f821374cf104. 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/NLE2F2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a226422b62079445f0557bfb718632cb8f7dc2c0e623370357ffc1f72e7c70. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLE2F2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15822cfe724ffb63b395e0d0062cf2e03767556f0adb4e52306829d6ac50d39. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:45:41Z), 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/IEWGI2365619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dacdd1a5aa47188dbb51d5cf7ab664077f9bbda4460c958a591d41a8e7a8dc1. 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/NLS242200228.
Make Schik Not War (De Nachtbrakers Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70043faa820acdcd6313571a35215d8f40055266b12de9d6d75ffc8fc2cd6b57. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZRP52460770.
Veeg Ze Van Het Matje (with Chicco) [Remix]
Veeg Ze Van Het Matje (with Chicco) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda59f72e14b2f673bea1de0e5e289fb523cc9a041da132df46266902c8093684. 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/NL7GE2400150.
Veeg Ze Van Het Matje (with Chicco) - Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52afe8fbc27fc4639eec6b4d0e07f3301e0b7fc8959fcb421fd422784c3cb17. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/NL7GE2400151.
Leven Om Te Raven (X-Qlusive Holland 2023 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc881153d73bc15f0c3fd7b27e63699ea42add850c015f9c14968a043f368da47. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLH2L2300194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20de272dbcc57f150260c9f427069aa06643e75de7780050f2f2cf3fd53c220e. 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/NLH2L2100013.
L*l In De Lockdown (Power Hour Edit) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8a9befbf4fd9214e088adcf9087842c2096a42eaf3cc73367b58c68b0fb40e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLH2L2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe03b882647b7578723d07807598cbb6c3d4860f09be07e07a0bb3ac957648f4. 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/NLH2L2100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3514a8375afc20bf5157c03d46f76936fd40bfcc673323fff092bf20077f0e87. 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/NLS762100189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041c4ba5348f8330cc4c245fb229c69a435ca0663d988c38926ea3582a17f571. 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/NLE802100291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d77b9b7ed0e2f1c6a28e3deb4e21989b7c2140465d26ba8d026112a4e000ea. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLE802100282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6259d3525dd0817b181a1d0b1d8cf18f722442f0cc7ffdf29c0e5edc1a26178f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLH2L2100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0a309d2d367ac2e0a46e5f875797d4a93d3fea49ad8c7e77f79a4e0f9b975d. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/NLZ8W2100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d704bf31d49fa89d763b8dddef1768da82603b55570e79e3c3fb3f772adf67. 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/NL4VT2100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1dafc520e4fdbcc311422a841a1137e4365a65fcebbf851ee266741381b165b. 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/NLH3Q2100930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45abe1f31c0c2b4eb9b8e4c08bb3ed46346d96472cf8e3d18084209aa084caa5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLE802100249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c0642abab68c7574a0a0cdd62ecb1f2c9a64cf4f63fc85a062849fb417fe9d. 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/NLH2P2100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb83222bec337230719a185f1251e67b290ffa5b65ebd225a43c9ea37c106765. 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/NLFL72100280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4d6a363350ee7711d69f83e290915dc773dbc7ffbc893c5100e82dcf90c9f4. 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/NLH2L2100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20de272dbcc57f150260c9f427069aa06643e75de7780050f2f2cf3fd53c220e. 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/NLH2L2100013.
Dans Je De Hele Nacht Met Mij - Dr. Rude Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23ace80e128ec308cbf8049757ff837fca09553fa582e9256652efdc8ecc6af. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLA242100315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0432f739098b1e4b733acf46e1fd2a92bbee322b814590930ca9bc853f1f9c35. 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/NLE802100329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb384e671015ce9b3142979506af771db58707b4d901191e5714551355b085977. 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/QZES52094844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8c477476bd5b2c4cdd9c436394d7587047efa013748c305097021274317411. 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/NLC202100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda08b8e7c8fd3a79143ab3d66eeacabf728177828dfff5b3c13278f57b5dff9a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEA311905020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fc8711b5fce69e02e0af5d07433e62ccba795141c5d0ffd81f336b3896da06. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLF711811333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74912a7e896e82c24563fd7aa00d71255cdd51313b1b637de94765f8871bedf8. 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/NLQS91700097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66010da29c4112ec842396efa30c4dc75a4bd03ed1c36773ee63929226c62d46. 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/NLS161801460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df1c7fc74d71af11ecaf40ca9334fc810d21c1ff5033426671bb65925c6f6c9. 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/NLML62300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73488f43de80beb9165a3e096c0155e21e6d6991d3440e73c88a7fcc171e4924. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLH3Q2100772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e233b07457d25f99262c890cba9eea366705db9e8438a08187259aee34aed22. 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/NLH2L2100184.
Heavy Hardstyle 2021.2 - Fire in Our Souls