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 0xb2cdbc80dad04e955156bfcb4c36f8ea37af8a46decc9d3bcdf0321d5d1c5e99. 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/9eec4ecb-01a1-4869-9af6-1d0691857edc.json and https://artists.proofprofile.net/proofs/artist/9eec4ecb-01a1-4869-9af6-1d0691857edc.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 0x66d3149dff5de6dc1359c3593ddc7adb94df432217c01501d70587c8cf56fa79. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GB3W42000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa749e83b9d668e6f608ecf8c519c0bd9b34fcd31aa0c120957d1056f6d9e60f5. 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/NLUQ62000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2697ff958e4caa0d31ce59fc6898f591ec33067c750a949542a2f7131729f6fe. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/NLUQ62000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd396b9b5bb84a8f27ca662457ff2972503396ddb60d4c7b6f53f0e713f413ac1. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GB3W42100252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b356d48130b7f06c62af6bb31723b2af6a0929feabde17880eeecf7d6b4be8e. 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/GBLV62132812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43a1884ec42e3cb50ebf7f3c4810fc2480538ae8042686cd400c4d82270510f. 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/GBKQU2239108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10195dbda0baf851a70f59c775ba380ca3e5942b13058b0ef4ee082d4e035763. 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/GBKQU2239109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1e2be558ae8b88649e7d61fab7e6a84bae5b4861e4b3f9cf27267114a3cdef. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FRX282240550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37abcfe972cec5bf08f456ddaa15f63b69cbd16c492d3fd1b47152ba9ed248eb. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBKQU2270476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3b73d1a481cb687532d1f962a41d4346c5a97d9bf1d8ecc4b229928120904f. 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/GBKQU2285716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53065e84e285bd4027fa6e2dd76576f1aff771c80415220f4c82b8d4f580a608. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBKQU2285717.
Lonely Soul - Christopher Corrigan Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a4ba6ffa7a81a0073c8d936742f1645d43bc280cbee1b3756f3d13510441ae. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBKQU2325657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a985d565c9514e4e96e8ffdf7d42cfb27f31c0a5a8c832f2b66ea485e373783. 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/GBKQU2444487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75ea3780dff7869429397db5c9d2ca6fbefe86b73e84acc33aa89816007c8eb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLD682402657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5058057a726f3f4065b49c8adc4594028c7230024561c8d2d00f43a5fc5cda41. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBLV62404054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f6a85f3be52827d749bd4e7429ee48a64a66d7c699a50dd38858b03e148abb. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/GBLV62413483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbcc47433c6734edd915695149559d36ac3356fa3d5daf29fb7e8685481fd05. 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/NLD682501351.
Digitally Enhanced Volume Eight, mixed by Farius & Ruben de Ronde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6022c31924736fa8264929a08b6403811a3865498dbc66ff199b1be58437d4. 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/GBKQU2396532.
ASOT 1132 - A State of Trance Episode 1132
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263ced8f48a8f200c02c43c3728ccac6e5a55370e455ae4d118dd7191a3ba567. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLF712306145.
Yellow (VONYC Sessions 800) - Eugenio Tokarev Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31428a5fab4fdc2095d25548894ca304ef5f339a3f9c0a70b2ab44631813da7a. 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/DEQ692200383.
Back To You (ASOT 921) - Eugenio Tokarev Remix
ASOT 921 - A State Of Trance Episode 921 (+XXL Guest Mix: Ruben de Ronde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1c10e0a77f2dacaec3dda0870c04f5bd64795b5d243f5c9c24fd61e652db70. 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/NLF711906983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930541e09e89594e91d6588f7efe7f89b1d2af8b0181e16be31d0b794e5c5e2c. 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/NLF712007575.
Wanderlust - Eugenio Tokarev Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e18bbc440ca072d670e70419b43573be324a1e8f2b0893ce0fb58481edd06e. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/NLF712007576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf734d8049a1bd9744ae977d201e9c418aa7601575ef9a6b58685be7dba64f0ca. 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/GBKQU2418573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b80d5b03b41a5fba66e5cb6150befb0982e34191d5b6407c87ac017cad13052. 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/GBKQU2413756.
A State Of Trance Showcase - Mix 026: Beatsole
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb9a35363c7d330bae05dde8dcc2bb8a53c5ed5ecc331263384786d255bda8a. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/NLF712105451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e0e390b721098e40d0a68036af472f980b3c0647843a6bf6362ce0ef188236. 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/NLF712105452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa749e83b9d668e6f608ecf8c519c0bd9b34fcd31aa0c120957d1056f6d9e60f5. 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/NLUQ62000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dedf2a3b0d85305c07926f502f746bec6229f08e7c6fd9e292a3230f3552531. 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/DEL672000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d131b8d84d50fd4242a65b7b3f69d36994a870d18c2692f6f732e230585001. 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/GBKQU2384201.