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 0xb38c091050c8637b582e346269ffaddc9667d17b9beffdda9b84bc0ec02df0e5. 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/6ef05196-29ae-49f6-bbdf-e186af7c88f3.json and https://artists.proofprofile.net/proofs/artist/6ef05196-29ae-49f6-bbdf-e186af7c88f3.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 0x298ed8a65051c65d2ed24f7651cb66be57785be13bcb0c01c7a47dcbd9b7d1df. 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/QZRP42463524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a9e36b2f1442832704ffce4bfa35339946c48599c33a1f316b32b26468db0f. 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/QZK6N2453070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf2a4d59e0f99a02132388b148bb62c6de995c1038489c01a95f0b0a9e5bb52. 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/QZK6N2431636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2995653db4c578aca5bff8c8ebc03e3edb458b3f779dda52f25672152198f2f. 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/NLD8M2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49ea7cad0ddece68fc9f6744fce6486e08e64b387c3a2bfba8d099d518d7d30. 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/NL5UZ2400707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d20c8b0ff1bd8f9266fc29efea453cc4c7e4386502709d59420061af358e34. 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/QZDA52402137.
HE-MA! Hoe eet jij je Tompouce?! (Anguz Remix)
HE-MA! Hoe eet jij je Tompouce?! - Anguz Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6f305b565cbde2e80e260285394870ffe3873f59f8e8b6a0aab0ae363ded50. 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/QZDA52430779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809748301d50996113218793891f754c0a03252aa025cb88a31c5c9c62e22ffc. 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/NLW6N1700203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9e16964c2659465519da3109a7f1a4a049f4c3741e597909c15b727463e95c. 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/NL7HA2300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96dbd27ccdbd47595d3db37042a40d32a0202cce29b99ab0c13e8fc861fdf7d. 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/NL7HA2300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a4caad3483225935873f08150e16637f7d5c53cf1f972129e5a1c2b4438197. 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/QZTAT2346714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a2901f7334000bcc25bfd612d8fe5c644adc07719ab4ce7ae54c83927789ec. 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/QZNWR2339495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052d44dcf36d95abc32865bd135fc056b013ab3a33cd83303109a65a341805a3. 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/QZK6K2319532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1570508f2f479e7d5a1788ee6e8759a81189e7d1470addfe322032f0169fa68. 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/QZK6L2378473.
Ik Laat Me Vanavond Lekker Gaan (Hardstyle Remix)
Ik Laat Me Vanavond Lekker Gaan - Hardstyle Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d22b33ab0cbe2ead5d529593685256aad90afe18bc1fdeedbda0ebf0156b2e3. 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/QZDA52312828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e15cdc10bd000efe99b569f2fdabe272a7540d0ab25ec8e8d5d676b50724a9. 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/QZFZ32317141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952b6d93d2bed70853a57eeadb7a39e805602bd737e9a2c5fb86d2bd59a96ce3. 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/GBLFP2212083.