thumb|upright=1.2|Laughter is a typical expression of joy Joy is the state of being that allows one to experience feelings of intense, long-lasting happiness and contentment of life. It is closely re
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 0x2943d7f7b5e2cca39b7ef93c120bb8e3c09550ec142f6937e7c4121931d5fc52. 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/14ec74d0-f027-4ba7-993b-3146308e91b7.json and https://artists.proofprofile.net/proofs/artist/14ec74d0-f027-4ba7-993b-3146308e91b7.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 0x72d0ec1b782d5d973253329c327f77630f11eed29cd6b4211491ee1d928bf2ad. 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/SE2UI1400601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011755376e3bc59e6e6ce14ccd56d60c51d5c6ceb6b5e1924eeba49a9227ad55. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/SE2UI1500501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b7e75e18eea162eb92c69783dfbc3173d21af9e43fe81cc92eff97c7ddad39. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/SE2UI1501301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf644b53d9b60bec8c3df2de7cd5bd79ebc811605e471061431a82079016c75ca. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/SE47G1600202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cedc979d12feb48aa526d5e8d18ee3fa26d0b9b94a4794e909632dc750c9999. 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/SE5BU1813224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1558b2076d164c06e4f2069be4bd71dd37b0921f1d47ebdbcf93dce0819051ef. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/SE4BT2201502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30c6335c6b1491ca4c4aae6532cc26231ed7e838927389e1735c1307f2c2bba. 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/SEUM71400348.
Där dit vinden kommer (feat. Jaqe, Duvchi, jj & Joy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b07b82a596a1cfa9e18be1f486bd88b5eec04144768243bf5ff271cb7b87ec8. 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/SE4FY1400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ddfb17e97f890e21ff6f842db880525e01bb5a47b0e8858fb2e20e19fc5d6f. 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/SE2UI1500403.