Ryan McMahon may refer to: Ryan McMahon (baseball), American baseball infielder Ryan McMahon (comedian), Anishinaabe comedian, podcaster and writer Ryan McMahon (singer-songwriter), Canadian singer
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 0x8fe59bb42f2262405ef957011b6f687805f698ac802aa8cfb41a6a447b17daaf. 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/fdc10e8d-b2a3-4484-a60e-1cbc499b02aa.json and https://artists.proofprofile.net/proofs/artist/fdc10e8d-b2a3-4484-a60e-1cbc499b02aa.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 0xd2cd913efa1b534e8fd950a7b3bd5908d0ddb5d685d3bf46685cc9368c219d4e. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/CAI370812104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980c955aea1d30b97ddd0739807a78cf86cfb764f8656c1a916338642ce288c0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CAMR61500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba5f1496eaa79281f42b1d187f641273921579662235ab2abe164953eefd083. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CAMR61800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabee49dfcc935bd162257236769f245148e8f10e66b5d60368088439f12bf352. 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/CAMR62000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9336d49d98e70ab4e1b0c8f400a7b0e8cf3b67a443edcb412833c53bf0e57c36. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/CAMR62200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a72a7e294b7c3428a0efe29a2de283431be74d2b83a9080d5a74224b4ff24ae. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/CAMR62200701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc521e9d761e1573c99c079a874d845adc08a3262260e629e03ad8cb582f0e25c. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/CAMR62200201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f4bc0611936908565e68f74ef06fad85085fab3ea7842a161fdb406c0d37d1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CAMR62200901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996f6233cbff9160d1294ffab8229b1d38aecfdb278ba70bb5f0a287d5df76b7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CAMR62201001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27be0d7cb2e6708543c90ed21473e656096f514caae72a46ef02c8746e32807. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/CAMR62200801.