A (often shortened to M.O., MO, or just modus; ) is an individual's habits of working, particularly in the context of business or criminal investigations, but also generally. It is a Latin phrase, ap
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 0x9c62e6da5f9e45d4f7014bec11007123508bb7dac4e7cca86da7996b5f72de3d. 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/c5a38079-1b7d-4de8-a130-de00c4fa1dd5.json and https://artists.proofprofile.net/proofs/artist/c5a38079-1b7d-4de8-a130-de00c4fa1dd5.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 0x61701f1a9ee3d94180b02df52037436e96ac8d29ab13a884c8ebe4bbbb4fd83c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES21A2000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6e029ccff9a209c79d5643e4e4840e7c8822fc5334c74df2ac50f41ee4b65f. 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/ES21A2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64ccf5be7caebdb3adfed61cade20fb72526c7fdf35c8ec000cd5bd93c9b2c0. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/ES21A2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521892ea08a5dbd4e09433bf0929b23bc6083d8bb1ae02dbb798c775a8daeed4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES21A2300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64ccf5be7caebdb3adfed61cade20fb72526c7fdf35c8ec000cd5bd93c9b2c0. 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/ES21A2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52463a253de9001c8e19ab9b1255d89212e899d2ffee6e75116a3596f1f1ba8. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ES21A2300074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4db790611d67da0fe7af80656a649306f1596ad3c986c5c0cb01d5672a5ed8. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ES21A2300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866868e9fc0d9383fb1a52e341e5b6310025fa25db4cd841ee614b4f422f8303. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ES21A2300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda75436a1324ac6d8a30498c7bcae33fb0024a5749d66cf3932c219ff0490f0. 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/ES21A2300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6dd0d4dc1afc032aae79c01e4fe3b328a157a42e3bd9762c9d72282c983576. 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/ES21A2300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b04b84dcedbc8eaac2050a33dafc2b4e6a72e37344870edc8ff3d7b240338a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ES21A2300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6e029ccff9a209c79d5643e4e4840e7c8822fc5334c74df2ac50f41ee4b65f. 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/ES21A2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97277c0535cead05faa7e45d5c6b9a377d4ce66f5c7e7ba736ffee66a5c7ccd4. 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/ES21A2300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe868f33b2124e21218f23ff6de6724ca15175611149154fd8d6061b06ef62bb9. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ES21A2500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf050a6960293123ddcef7b91778d4a3109d07971176aa05d87037654c92f9cda. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES68F2300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f3fa09eebeb0e9f37f2c218e8e9df446ca30095702148a86c120d80d416db4. 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/QM6MZ2585632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd8b8d68582f8a9084c28835dbecfb4dee5794633efc21051fa5a300d6d3cac. 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/ESA012557385.