The MATADOR (man-portable, anti-tank, anti-door) is a man-portable, disposable anti-armour and anti-brickwall weapon system developed by Germany, Israel and Singapore. It is an updated version of the
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 0x50d5c6bc63a56c894ffe7fd1fa5e9fbf1e5f42ed5568c4b91215fd1ab581624b. 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/6b15baeb-91a3-408c-9759-3a8d256c30b6.json and https://artists.proofprofile.net/proofs/artist/6b15baeb-91a3-408c-9759-3a8d256c30b6.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e05b84d44c1a5076241aff00d4da938e75240ce2071e29bfe6e09d9ac7782f. 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/DGA062239057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3966b7c2d2dd79ae2a1f8f0d26c57a3d9a0cda2b0e88e489f372982510e18e. 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/DGA062239058.
Tell It To My Heart (feat. Hozier) - Matador Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b64bca32f286a6998c34a70fc47dc7fa72b2fb4d96f966e682ac98fd573fcc7. 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/GBUM72108838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc0fad66d74e044dd61172c3e0141b540f890eaf00b2aaf478ebe1cdaad994a. 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/FR2X41848617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb911f81d2867a32d4d7abaf6b73c1d510884db79627ff90bcadbc903c399e66c. 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/FR96X1749841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf335e18268f72b56563a8f1822af71db0f74c86e3b957fbf48cc5a8ce1727df. 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/FR96X1749843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb760a8dff9b1ff95fd39ac32990c8882d7e5c168121284b5cf03cf9044ad3173. 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/CAM261450564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d60958cdaa7bc9404cc77455618d2473d752ba0373ebd56444d34a6d05fb74c. 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/CAM261250371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7827548ed275475b1ab061500d69c384f021c1fc50e8ab8c7b7138903888277c. 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/CAM261250372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6a1bc524c074cda911fc402dec52af49cb8b4be1bb373c9d0e5bca54bbe1a3. 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/CAM261150362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de635dc99c5bbdddb489571c39c06207dfaa30d6f6f0ced3df1226eadc62c2c. 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/CAM261150366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bed3cadf03b7aa352611972964e8346577cb13fc8542cc7e9921acb8fdec51f. 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/DGA072368031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164bdd0f98799e9b5912f6d7e1ec873cb0b70d529753ae3cd5deaa17482fe221. 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/DGA072194877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534da31a1758279ea356854fb8cbde75e564fe45ae2c8a60cab238f804aaf6f9. 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/FR10S1946291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e970040771de50a48f3ae7b2ab2dabba4797904b916e10bd5c752d3c8404613. 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/FR10S1946292.