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 0x999b673829d6b61df95b26f60f035fb67bd981f2a27ab7ea7f257e1626d94203. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11aaef14-0080-414b-8d84-66901c1a38ed.json and https://artists.proofprofile.net/proofs/artist/11aaef14-0080-414b-8d84-66901c1a38ed.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 0xcbf1efac64d3e2312f28b47b481e094480eac3ce247e486f89846da09d1795f0. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/NLCK42214337.
SFM004 ASSEMBLY ASSAULT LP MIX (Radio Mix)
SFM004 ASSEMBLY ASSAULT LP MIX - Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb455038119a9730a6a7b932d404ab137ca5d3ffd332bcd660a6394a0cfd97642. 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/QZS652168716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114e0baf5db32edb8ed3f3f6b918d5fb031e9c253391f335f55a693d5e96ccbf. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/GB8KE2051570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fd9568793c27a1aa79a2dd32c769bc4c7373e52e0105771383fcd355b4c2f4. 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/GB8KE2051571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0a664c887f5f919c695d89f4cadf52ed1692166c326edbae6a936aeb3c5fe3. 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/NLCK42238467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94c854714b21ad46cb917ebcc349531832abd23b149d95e2c75aa7fdb32ae00. 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/QZHZD2145120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4eafcba0665b2ec1d99e243d788541d05752e0ab3489c8d0d4c85e069f6bf39. 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/GBENT1710592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37444afb71da0227b7ccd6d1f1388052c62e8f817cfcb66919997c7a8394590d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBENT1710588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5f61ddc161ea1d10932b2a523059e98245abff64eded7970b09cd7c341fa98. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/GBENT1710594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2671e0ba4bd02355c40774c424605560a66c21492decc60fcf7c5a80dbd584. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/GBENT1710578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc207d99c038e573de911df16cd49fadfeb962eedc4d1b4e9fcecec2ed4fc309c. 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/GBENT1710586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76aaecff26b4a9494c02ba16f7b8cea07708bbf354b3e026947f488350960643. 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/GBENT1710591.
DROP THAT ANTHEM VIP (feat. Drop Database, Magenta, Bio, Brejchus Pavián, Mc Jelen, Mc Jílec & Puškyn Nikodem) [Meph Remix] - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736ac75597e1fbca9179ee0631e263f6014f5e1aa60268ba64ec744509651caf. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/GBSMU6030207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689646410d2cf41b7407776aaef4318cc613c2a746906ab986b5fb6645827dcb. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/GBSMU6030144.