Mattiel is a music project fronted by Mattiel Brown and previously produced by Jonah Swilley. They have released three albums, Mattiel in 2017, Satis Factory in 2019 and Georgia Gothic in March 2022,
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 0x0b433f74ba5472d5da7e7ebc2fb3b9f9d2b5b417ab537547c8114ba6d80e5d4c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e3a528c-e00c-43eb-a149-27b153f0eb71.json and https://artists.proofprofile.net/proofs/artist/4e3a528c-e00c-43eb-a149-27b153f0eb71.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 0xd39462069c892e63b63284a2e8d12e63b236ff8b5e17635516019726bc24b3d9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USA2B1702627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc26e0b7f41e5e854fa3dd37c8bfd7a3cc4fc2163fe8aaf7c64ac5a6aea6df0. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USA2B1702628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d35e3f292591513c2e5589118263a5d9473fda1aece336bdd678952f82a2ed0. 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/USA2B1702629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf40cf24d232c2f76afbb57e1e2829b844905da32a78d682c82a26a5df4e378. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USA2B1702632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063c6daaebc91dc26ae29af0e11c63b9d0c95683864301fa5eeab823df27a04c. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/GBPVV1802640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3db9ae3b0b10933399e2335f65403701d4e8c892f440f946c434a5cd50e976b. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:54:44Z), 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/GBPVV1802634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd896bf083329e33e39e53195fc2c98a384a84f76770d476e08dd6065400461c5. 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/GBPVV1802636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86b7c4d0cb2cbae9258f49f8040ebe3910c67955fc851dd3a510c2c0d7a077c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GBPVV1802641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db2478f11955049bd907d7bf39758297e7e6eabd0add5b5a6a9112394d11b5e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBPVV1802642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd896bf083329e33e39e53195fc2c98a384a84f76770d476e08dd6065400461c5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBPVV1802636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188baf55c36c9cedddaa0e37925d8de34043d25649302eeae8cb0109d313740a. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/GBPVV1802637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86b7c4d0cb2cbae9258f49f8040ebe3910c67955fc851dd3a510c2c0d7a077c. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T21:01:37Z), 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/GBPVV1802641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db2478f11955049bd907d7bf39758297e7e6eabd0add5b5a6a9112394d11b5e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBPVV1802642.
Merry Christmas (I Don't Want to Fight Tonight)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcd1e0a41ad39a941be339fbc726188c21792a6f2240011a53383dbc777c407. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:08:38Z), 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/GBPVV2003110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcd1e0a41ad39a941be339fbc726188c21792a6f2240011a53383dbc777c407. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:34:47Z), 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/GBPVV2003110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacab64ccb09d5e8384a590ea61c05b9acf3dc8fb56028b4694e2d0d20469c5fb. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBPVV2003109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adb12e3b21fb942b2cc07abf22016bd6edce08292099def71dfab5155f065d8. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GBPVV2003592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe722329fa9316d020be283dd19c79ce28a51648b940f70cf2d56a0a8efd0396. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBPVV2003838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee228fd872eff9571bc128f1edd4d3404fb51b7ec97bcb3ec66c1f0c88b57ab. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:57:39Z), 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/GBPVV2003837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe722329fa9316d020be283dd19c79ce28a51648b940f70cf2d56a0a8efd0396. 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/GBPVV2003838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79f0f3e804b10678e32c4123872ac9310104e34585a0c3966fbc866f9e279b2. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T19:03:04Z), 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/GBPVV2003839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f5faa3f5c6cd037cfc3fed7e3dcbc4abcc5aa4540a037417d69b402b398956. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBPVV2003840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f274f3261790b8b8c4d5a93421d932f8bdcaae1193d7824645a147d3fd53ad. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBPVV2003842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577c53b64ed577954b694f7fb04a4a5d3df558c79d2ecebe568575b3acae03a2. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/CALVP2429337.