M, or m, is the thirteenth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of several western European languages and others worldwide. Its name in English is em (prono
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 0x40acfc5443be9be3fdeff9cd16ac30aa623f2b71cd2355528da246ee32068b01. 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/0c0d3c8e-be46-4c00-bcec-39be3ffc9b8e.json and https://artists.proofprofile.net/proofs/artist/0c0d3c8e-be46-4c00-bcec-39be3ffc9b8e.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 0x85915f69679b0920e127c155c83ba750add693304e1c86fe5659e46831f5b2db. 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/GB5KW1900117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452e7f8142c6c7ff04c3dd1862a2c920d439e21e1d45f0e8b82f6ff9fa7eba5c. 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/GBGHQ7900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa092fd1497b08bfc1a879be9bc0a0cf8ef49550285fe1f7d5f2f80c7637a5da2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBGHQ1000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35e4076de7ab0d50a20e35256f3449a25752d7f87240c6388f40de4c8df4bb2. 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/GBGHQ7900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4074879372a81ec2773c7af38df9367366dfd2498e829b8ea40fe734e6590dc. 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/GBGHQ7900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cab7e44d361cf8a1d3f3abc81895d56ee4bb40df5de70e125960ec70188601. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBGHQ0900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd77a3e029f2a44c99f37fb2c14f424bee89a79bbafe0a2c63375851fd2a36c. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/GBGHQ0900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fa3568c87d5eb6387da1bfee187d5704fabe9ead5916d2739fc462a3a0d6ab. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBGHQ0900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d726f00db84a36fd62638cb4408255fb476e2924ca0c90b47edff01bf8b2363. 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/GBGHQ0900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7aaca0f4905b1e1a507c0ab5cd9647216c9d0c46e070253103d5fc8590baebb. 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/GBGHQ0900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569c70b39bcc7e9c0c498385bb4bb8c4cf9b2cd42fe06720d353b2ada731a2dd. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBGHQ0900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66204b3030f1f2e41122594588ca1d79771fbeb968e91e3096bfcc7c088f524a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBGHQ0900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ea6eb71ef892a66981b66400b4e837744ff126b0a6223f4a3b17fecfc2788d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBGHQ0900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac95eaf4cdc1ba9d4fe6c3d4e3338767feae2e51152a013334cb76b1b79117f5. 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/GBGHQ0900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9012bf59fc98fcbd45f70a78183d854fe267dddf5631aad8a6943f51d097aa. 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/GBGHQ0900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf629436cb8038ec02b532e6ff0e1dcc769430fba875adaccca1dfadf1569e109. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBGHQ0900029.
大聲壹點_格萊美匯 Electronic Music VOL.2 In 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7272141585c447c347adb1f4da32055b1da2d0f1ae001e6f5fa5a4c5339c1b9b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TWU712205958.