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 0xeab5e9cd8225ce1bc30e8a49d876691bb99617ac13281498e76c5707708ff509. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/01d21987-046c-4864-9f00-6eccfb44e2e3.json and https://artists.proofprofile.net/proofs/artist/01d21987-046c-4864-9f00-6eccfb44e2e3.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 0x7de2cbfd006f0b80c8c89529d1e35c3c763b5b10489a343fc973467bd9e6dd19. 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/BEB681700413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2e2d44c00efb444fe2df02a9cae8e07595413bd64d42eb51d0d19873ea16bd. 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/BEB681800198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83976743a98f6fd9d2422e2267df009e6fe8b25134b2aa2c8e1c1605c6cc0af7. 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/BEB681800202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5106e846d1d8c8d6bc566eae5409c7c31aa745f0435c27d43ee9882da11c2ef7. 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/NLH2L1700207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5fd78dbea890db67785394eca3c9dd572cc8fa51f045c67a6ad7bf4c1d73eb. 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/BEB681800136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5fd78dbea890db67785394eca3c9dd572cc8fa51f045c67a6ad7bf4c1d73eb. 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/BEB681800136.
No Guts No Glory (Defqon.1 Australia Anthem 2015)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf65c1d19a1e8eeeb3fc6fef341682fe89cd15ceb10ad3ce566f940d4dec77b2. 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/NLH2L1500069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645f82c2aa7ef8f78bc931e130973f141e379df2c594eebb5a977c092976fb43. 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/NLE801500140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fab1ef9650d89464fb5e570c63b52c2e2d2452113266ab3e4e56294a831e3cf. 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/NLE801400241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4853a093415e6a141fe03499483828ccf165593a960c14da400d01e2e53715f0. 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/BEB681800240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737b665bcd78dc2868225af095543e13b6e50df96eea41703ece2ff0ad50cfa3. 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/BEB681800238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a86fb4aee9ccc9580d0dcb3c8b1264ae51ece57278ef489a0eab2e0c69f459. 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/NLE801800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524134b3965c71b62978a250e842cf66c738098da8a146e41c461011428080c7. 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/NLF711313822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3788381c2274ac518bbf5674215f1ba0dafd5aa3b804e31705b954bf98855c55. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/NLS761500317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c53f2559a44513556feaaec89f8714d4c1362ff9779f411a868d5f92dfff21. 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/NLE801600153.
Destination - Official Decibel 2017 Anthem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14c9989f58714cfc37731e5490aa4d9aefa30fe4a00a7edb0dcb9338d4389be. 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/NLH2L1700117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f50f7b0db176667622fafea692f347861c7cfd08934bda85daaab1e460783b. 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/NLE801300561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397d485ea69a35255807b38b2f4cace8648bc3399f594f697df37ad35904787a. 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/NLE801300512.
Defqon.1 Australia 2017 (The Soundtrack)
Infinite Triumph (Defqon.1 Australia Hardcore Soundtrack) - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d79253c6a5341015dc1c3700c70759934932ee99de47091267bbbc5b8847151. 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/NLH2L1700212.
Hardstyle Legacy Vol.5 (Hardstyle Classics)
Sparks (Turn Off Your Mind) - Atmozfears & Audiotricz Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71829cddf2457b418114d47041c02c12dba9abb5d48ab63e5e3a314a7e826e87. 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/NLE801300312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f728e35b2dca3426149de468d335aa909c5cf88eee38934cad759ac715b426. 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/NLE801400169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3c9a4ff958db6eaf80c1a95e564ca683269508809523c55dab2b66b763cca6. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/NLE801400170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729e63f449863bb5ca66a7494b980d23352a41a70344931d36903fce63d9eba7. 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/NLE801414050.
Cap'tain Harderz 2015 (Cap'tain Belgium)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f8d1f36072ea13ccb85f2ce7227f8573a4470136084fe27485c3bcab3abb70. 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/TCACC1426977.