m-pact (pronounced "impact") is an American pop-jazz vocal group based in Los Angeles, California. Founded in June 1995, the band is known for their vocal arrangements, recordings, and music videos. T
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 0xfffb69da3f1527c15a1aff2084e470a1bc16adac2a318c74e3e4145196edbcea. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ff399ec-2c47-4db1-8540-ecf863a11a21.json and https://artists.proofprofile.net/proofs/artist/8ff399ec-2c47-4db1-8540-ecf863a11a21.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 0xe09a247b90cd81c3c0aff7ad0a58658a28490cf6901ecf39a9deaea8fec0e866. 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/QZGWW1971787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed85f7ef62d4d338330f3990e3a0898e1dfda2ff92279b76b584e3959ea43f3. 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/USTC00924531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eab1e5bee9fde1e8f4b8e0babda9b4ab0c9dbfc6c793e2f4818acd4ac839d0e. 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/QZ22B1968248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58beff8b57d9ce7f3be8f957900ff7a7a67e3999b56a882cdeda4750d40b72bb. 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/QZ22B1968251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008f789d4c75bc85f2ce6c2e0b3e336774b6c746398c31e1e691f368ff00cb07. 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/QZ22B1968252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1f8b47eff498efe384f738ba4c9212ab1d56c825df5357e2e0d6ffdba6058d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZ22B1968249.
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 0xf90f952df1d8c7f6a91b205ff16e0974e603fb35f685deedec561b48a987bd5a. 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/QZ22B1968250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39d37ff90f7e01c91e3ab05599e2e9c0a8a12a317b236da66ce6ff277557226. 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/USTCC1070003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4612b8d918cbcc2db5458d891c83005e499517026930ffeac6278975a6809a30. 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/USTCC1069998.
Over The Rainbow (Featuring Elyse Masterson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbba4d15bc018f3a76ef01328b66ac5ded6f2a9b88960ca1c38335201339f589. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USTCC1070005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6aedf01647baac9d6ee5aa0de3bba4783aa0c3cc0419676a4e84bc2e51ca0b9. 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/USTCC1070327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d87590ec69ac52d09c04c9a8c94ea524a95d8de7da9bbd424d4eee5a5d95316. 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/USTCC1070339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d35a6393720558b227bc268b5086ebe7040f88a3c2882ff05f0e6cc3308457b. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USTCC1070328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef64cb1073509fa1deab8d7588db355ec34db424ac186ee91ec4fc0d40380458. 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/USTCC1070332.
Tribute to Bill Withers: Ain't No Sunshine / Use Me / Lovely Day / Lean On Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24862996cf8f1c034905ff09f328507464d2726e384a275000fca8fa81ee012. 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/TCACD1567064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9a39e25a779eb8c25effd7561687afa02bf60b1430dba45b9b9014a946895a. 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/QZ22B1993561.