Michael Stafford (born 12 July 1990), better known as Maverick Sabre, is an Irish singer, songwriter, and rapper. Early life Stafford was born in Stoke Newington, in Hackney, London. At age four, he
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 0xdb7403745b423b157bd8197bd6173bc115edfcd195628785950caef227d700fb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1958dd61-22f8-4a54-aaf5-105c38ad4efa.json and https://artists.proofprofile.net/proofs/artist/1958dd61-22f8-4a54-aaf5-105c38ad4efa.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 0xf2510ac7a18c6f7ec5ef55fc40e7f6ae7ebd66eb8cb28ca76beab8ee782bccce. 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/QMFMG2361423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc2cb7511167c43b7d8525b545a5cc7ca4bf6f639673b34631b1fc375f3a3bf. 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/USZXT2454683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaef63b358141194f94878025a149688a08877c21631bf6449c7b964c8e68978. 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/USZXT2353100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df21ad181cbfe6fdbead3feb3da7060d797f58c15ff7bd888b52cfc250b3744. 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/USZXT2453659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0fc9414737e505a7921715fcc8f764bb092e149a0de9e3edc9773fc971ba96. 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/USZXT2454146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaef63b358141194f94878025a149688a08877c21631bf6449c7b964c8e68978. 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/USZXT2353100.
Don't Forget to Look Up (Abbey Road 90th Anniversary Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecde49c2591a59a1d877f98c43efe4410a54fe48d70da2ac73a9822b00e7a28. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM4TX2286601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1c0f30917d8c0099481fef01bf2709eb25eea9198ecb947fdedfde25ca57d0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM4TX2286602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1660cc68be3990ca5a45a36894885ecf6dd93d073b7c62ec8590f8c401c5683. 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/QM4TX2286603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30d09f6467b8704fb8cc81f4dd388941c492a8dd9a0f74b06022dcab45802ba. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM4TX2286606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b99cb2330d2db91ba5b10589ae5fbc08b827dda8d88c9618b1b419ff90130e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM4TX2286607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5b1dc53bb6e6cb8737d476568be7aa20870ba9411d2180df6e508977779acf. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QM4TX2286604.
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 0x82388a48215721a83e5eb248227fa19eb6612b94947437470b2e2197ad631436. 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/QMKSC1400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a0c1639bb627065c17aa2bbd20895c129291f8ca8c656349b47f577cc4f66c. 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/QMKSC1200008.
They Don't Care About Us (feat. Maverick Sabre & Yebba)
Toast to Our Differences (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338a2a918fc38e0a0c3164592cb45a83d463402b09a7aeeadf07759744663e4d. 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/GBAHS1800377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaef63b358141194f94878025a149688a08877c21631bf6449c7b964c8e68978. 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/USZXT2353100.
No Pain (feat. Maverick Sabre, Kojey Radical & Kabaka Pyramid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d6c6d23600deac4a6c307f38222c0e3085a4242df24baf78030db7e598fd26. 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/GBAHS1800374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889858fb662ba0b1bdf2e2c3e472d33fd942c9e853f661bcb7e850fea72984b1. 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/GBARL2001099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaef63b358141194f94878025a149688a08877c21631bf6449c7b964c8e68978. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USZXT2353100.