Samuel Timothy McGraw (born May 1, 1967) is an American country singer and actor. He has released 17 studio albums (11 for Curb Records, five for Big Machine Records and one for Arista Nashville). 10
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 0x0ac810bb2c59011eb3a761d0c8de63364ca7f412ce9e32994c3d7008501433ae. 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/cb3d2702-403e-4a0e-b2d7-25b32877c46b.json and https://artists.proofprofile.net/proofs/artist/cb3d2702-403e-4a0e-b2d7-25b32877c46b.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 0xea719a27fb5f55995ec576e519377149db68df75863fd815b4922075f62b6032. 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/USCJY2018578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9979f70ab9c30d602a487c67f851f5773670ef7754c62a1cde29f07620f948a9. 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/USCJY1518387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0e4a61243be94f2e7ad87f292c0272096954c427063bc8cdce642a50b5cbfb. 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/USCJY1518407.
Here On Earth (Ultimate Edition / Big Machine Radio Release Special)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b465c2491201905eaa51e1e218971409f035950a79baa195aab57f94bc7b56e. 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/QZRD92303147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4c17e07b457c1fea936b072fd619e22cbf2e972fcfc8af26e47d2d58dc48d1. 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/QZRD92303148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d5dccf339fca918c1c43c58d6ad81a0e456d5d8bcc6ae90128017e5b9208ab. 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/QZRD92303149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b575a887def670c763c9a53a8942f81e511a03e105b4f851a2494605114591e. 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/QZRD92303150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078d3b52b583ef866cd1ab4df075ba4ae97efff956943de65deb8f2a6b5b03fc. 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/QZRD92303151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92bd900e16b2b13e02eae5633dccc3d595f7491643fc6a9e8f9e463e1862ddb. 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/QZRD92303152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea84b2bb21bffcff9a2ad7336b291dd46234c48eb61d75119c29d9f0d3941751. 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/QZRD92303153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b95872485cd3d38426db80b592e645470724304fed125fbfb5d7d036de12cf. 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/QZRD92303154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10419f9645bc50f190fee32a8f0960acca1857f99257ebf7cc689377d1299b6. 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/QZRD92303155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4208db0edc89793dd85ef8999218308ab80a88f4ae712dffc4f62d4faf4e400e. 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/QZRD92303156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05092c2da77bd476d6f1d767ea7fb42750acca3fd2e056f3b44f6b6277b9c3c. 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/QZRD92303157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e78daf15421011d5e03203730b68cd15f41143faca2480e4c960f28e6b9742. 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/QZRD92303158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b3435685613edb166b74dfb00581cb1cdcda2707363f8573899fe011e43512. 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/USCRB0201858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe245a0891c44701d3d00ffe0c9c5e219677e5293b68d6dee5c8ff9afcf02dea. 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/USCRB9900114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4271e6b94db53b5490831958d83620ca07e0318a52c9560c6b0e056932f70e. 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/QMRSZ2001435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b51952aa58a3e7da759e9e602c7c605b24900bad1e9b24acee1b780413e05e0. 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/USNPW2400752.