Matrix (: matrices or matrixes) or MATRIX may refer to: Science and mathematics Matrix (mathematics), a rectangular array of numbers, symbols or expressions Matrix (logic), part of a formula in p
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 0x17a7d94e88dd0382fe7f8052053c5e841eaf9204a40483e73076342f21b73f43. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2f696219-fcf2-416e-89ff-021aff1d0db5.json and https://artists.proofprofile.net/proofs/artist/2f696219-fcf2-416e-89ff-021aff1d0db5.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 0x1592505ff8d68b9210d6ee456a6becd0d871b86e276708fd7c96c3596596a029. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/FR2X41530543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfaa745159b08980f27040ecaa0ba580575e964d890cfe0494adbfd883632d4. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/FR2X41871461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872988f17c9954b2271cdf146cdfe8b1ea2cf05f418a3d0453f2356713c0f7eb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FR2X41871464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9128ef9026db10a4b2bbc1f0630cb1b0b77291497203729b03edafb4dc5ba4c0. 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/FR2X41871469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be21d58f7ee378773ab13ebea87765ee9eaebc7425e3a747bb8c0db3c7808ee. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/FR96X1883162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42c06267c9c80979c92bfc930727e96b56c15f139850a07948fcf7683ea8df4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR10S1910948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65118f576aeb952565cbc06e93f87a8c8ff0a64da5b2f2a1b78b73d848ca86a5. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/FR96X1999974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf687fd632dd389be04bf9dd673036e6773d930a037bde39bfea5601f3d48840f. 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/GBCJY0610304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14aee9db44377a4e9406c8e47c6e82b0a9f70c0e573692af9654dddfcbdfa25. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBCJY0587001.
Stay I Need Your Love - Dario Piana edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa2d93599e2cf273ad58f3159cbe046f04e3ab33c25305eda47c69056e63b82. 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/ITH151900002.