MOS or Mos may refer to: Technology MOSFET, a type of field-effect transistor Mathematical Optimization Society Model output statistics, a weather-forecasting technique MOS (filmmaking), a term
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 0x29811eacbcbfbfbee7efd6a9d2719dd418d78583c4227cd5d952bffbff17468d. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7168c3f-925a-4ca4-9b1a-2b23305270b4.json and https://artists.proofprofile.net/proofs/artist/a7168c3f-925a-4ca4-9b1a-2b23305270b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Let's enjoy some very nice music together (feat. C&K)
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 0x90816e8323eccd3148cc65901baca7cabce5caea14e1c886f006b04e1f97611f. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/TCJPQ2170788.
#3 Do-Va-Do-lunch (feat. Hanakuma Chifuyu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab959b8457c2cd81c1a5a59f6513c0b63ef5d01cee87abab52b86ef6d689b55. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/TCJPX2358997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab959b8457c2cd81c1a5a59f6513c0b63ef5d01cee87abab52b86ef6d689b55. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCJPX2358997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e607cb1deb20c9aa06b7ebb5fd93b5c4d15de47589d3c682749a819aa5c16c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCJPY2357669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbb2fb563dd7f174fd8c45c7d5054a40080ec402ba6950a1e1482cc91ed0f86. 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/TCJPY2360394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3570d32295cdfe6ed42f8f0984be131e5ff009b320dbc1b000f0691571b9d679. 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/TCJPY2360421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7ff6f3fda1f24450053846cfbbeb978bce570c326eb6fe1152f721a23299bb. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/TCJPZ2457668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20370abea55b5068dd7109c27a447902944a88f9d64e3f2af7f4d9ae15f2ed4. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/TCJPZ2457684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cd621d30a8b553fb3dd2a79f4016d18161447363cf08865f35865888873eca. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCJPZ2457712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c6e6722716eea4ccd935ac312302510461b047af1c05c1083664f7e2135ecb. 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/TCJPZ2457721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511758df0fb071ee96d5dbdbbfb9d5c8bff7ad4fc78189914a734402cb15f792. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCJPZ2457750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc53b8231123ab2f7abd161f098cbb6eeb230d2d84f1c6ac35867425ef9f63f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCJPZ2496480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322366ed57a2354082db84757df49c4cf1401f54de3b78f15da5ebcdb7cf094d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCJPA2484184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7c7bea9280ebfe10f00303d82c638abdc0f16ca41024f971e66e3fbcd872aa. 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/TCJPB2410452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063c4d1318b64deafb2b1967f6d1f78ef352e76b69cce85b4a8f49aa502f1efb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TCJPB2486476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf040879d565607e968629d88886585624377ed2a40d144e7b5f7b4b7510a0269. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCJPB2486515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf59b1b52ed4ce61192ea7f5e2e98191ae8f1076fdd1ef08c1b5a34382cc4310. 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/TCJPB2486863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf040879d565607e968629d88886585624377ed2a40d144e7b5f7b4b7510a0269. 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/TCJPB2486515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ce7400720105be384c088980a0f5ffb3f991ef76dc1c088c8df327396288bb. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/JPZ922501261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b6264935f5412896b36e5a5d452fafafcd890109ac55785befd549de52c6cd. 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/JPZ922501263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7677a038110b23a13dfb6a0dae0c9cb81b77d202b49456256faf5490208450e7. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/JPZ922501264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cef914128dc98a980d1aa1a66e87fbcef09f8fd8472a013290954c9f4a7cd6. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/JPZ922501265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543bb46803fdafd1ed2dc51d99beb4fd2744c281947beb5e0c51d0becc29d286. 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/TCJPJ2561772.