MRD may refer to: Fiction Mutant Response Division, fictional Marvel Comics organization MRD, fictional substance used for time travel in the 2015 film Synchronicity Medicine Medical records depar
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 0x2d0092f4ad2b7deab9ee96f4213f7f74387028f53c206b7b1652bf7fc916c6e5. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b09289a1-f21b-4702-897a-b270e05d11b6.json and https://artists.proofprofile.net/proofs/artist/b09289a1-f21b-4702-897a-b270e05d11b6.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 0xa81cbb4c4315e8d01236630031c291eeea7cb163e60dd4b6f63ec4a4dfe163d8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/PLC062538075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fb790632845d830d3bbbda3c914a3e99a8faf4a9242352bcf66c86be19969d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/PLC062543034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15543ce2c0863516dfcca77cf3613f1a4fb0f10f94a00677fcb5e6daea15e18. 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/PLC062543823.
Przyśpiewki nie tylko weselne (Radio edit)
Oj dana Oj dana Przyśpiewki weselne (Radio edit)
Oj dana Oj dana Przyśpiewki weselne - Radio edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7c5da4ace170ac2d7b822e95743c70135c85f465340b9c76c03b8165c6da0f. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/PLC062549791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f0a703b567bed589463bf6ee4c656d9d98f068dbabfef9db833a496543ecaa. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/PLC062550054.
Boże jak ja lubię grube babeczki (Radio edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4250e7ee58eb05d6b9759c7a08d58e5ce405c9c227e169ce8ccfe8c4ff1c0a34. 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/PLC062551214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7164b9e573edfefcf13776bc61b54c8d2e93e9c73fb76f41805d9926231444. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/PLC062551546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c5dc7a5e4aefb7f0e2e429f77f86d69a56b2c62c097ea4f11b2dae6914cbd8. 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/PLC062552385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7760cf7ae0f4502ee4525d0cbf631e3a528d7c59c6ea75c7c3eedf3d62c4ac. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/PLC062553634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f789e63374cc5959bb9da669965a61896f45b8080225c17760fbf080ec6e22. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/PLC062554129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7310d2a7839c378e3d925143109d49566fd3e7709a028c9d06d107539e49a1d6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PL4K02500920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa44aa567cfbac83d5258ddeb4daaca0c7c01988d7fecafd07cc5413a342c08. 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/PL4K02500611.
Każdy ptaszek musi mieć daszek (Radio edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1ad74a32ee49c4d33b55b726bf0c22918442ba4ff176cb67cf8a60157c4328. 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/PL4K02506033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb298ed16b44d57c48ebecfd564ba84f07d26cedd65145cfd8f35cd99bdffafe. 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/PL4K02507847.