MyM (pronounced "My-em") was an 84-page monthly entertainment magazine published in the United Kingdom by the MCM Expo Group. Originally focusing on various aspects of Japanese pop culture, including
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 0x37aa33f79478a2cfb7b14f775ca44e0ec3a6cf515090bf2c8303749ca772f4d6. 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/83159d14-3a81-4ced-93cd-a62cc87382d4.json and https://artists.proofprofile.net/proofs/artist/83159d14-3a81-4ced-93cd-a62cc87382d4.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 0x8cb88601d2de00ed1130411d6544976afbaf6fac3d66deba78139bf9b2523ad8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCADA1712940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a42113bbfae7d17ac1dffc8dc4131fcf307d69736b3411e2d07e7812aef316. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJH2512156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fecf9a50e57aa1525f4f0440c25b274030fb5042c1fe1444389ff71891da404. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJH2512162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd496b23b7b5e0c9e0034327aa218084f340575b2ccf06357ba09d8ffd228ea51. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJH2512166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07ae92abb6f074d25dbe6990991e1c05bc110e1074d1a82db2d878f2a9ffb0f. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/TCAJH2512167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebf2b0935f77344de5ff55c069baace5928aed53a109cd74dee6a618aa3de9a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAJH2512168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531389c9e1a35f7e1aeeed89a7f0c2ee63a2845ca3f8b1ee318fa5776a55cae1. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/TCAJH2512173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd336a547a2697209da5030e4db4d82ad6c88b9e72381c4fd32d05907abbab015. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/TCAJH2512186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d2b8f9e1efaba23caea9c892ac0fe636671f32d5c5138da5496d8067d68d61. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/TCAJH2512188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d87aabd8f2728001f78efab5f32b5360755e11dbdae3b87ed9357cfdc9aff2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJH2512189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c8d7022668c042f15fedeabd762baf27d1f002e2210299f39d04d162c97e51. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJH2512198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828f50155a9bd4175c6034d01b2b6999887752d348ed2c84d42febc4fd267aa1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJH2512205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0b931b226f8312e37c3472744d4f25e784a047ef458d81bfe7daefb1d0969d. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/TCAJH2512206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc449edf586e422c349f2b26b111d3c668b44cca05f319f4e786fda20c7808dd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJH2512231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6582547199759d3fdbcb6398f27e83733ef9b3104038b69aa1651423d1110c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJH2512236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f379af0718b1dc05b20afe69ae6b462bd15a5e601517955f4b0a135ca6dc81. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM6P41716344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25701ed2fbbabeace2d1de7c6f2e2d1576cde77e57e6a3345169d1670441d67c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QMDA61893315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14aa6b082acb739a3e0500cc84c746103df79ba08fabcb494f8ee235b72ad2dc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/PYC842302436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05f331f9f999572aef5b6e280842867c2a97e34e47a7d53d72bba43ff6e28a5. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/QMDA62322219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf607c47f5d77aaa691725e01bf8c3d63d416e6c7caa23dcfb2171a66f9bf8c64. 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/PYC842201049.
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