{"copyright_id":"0xe265786dcd854a97f6a0dfd9c1157c2260d377aaca2b1bd4e2eae133baa1ab30","name":"Jämsän Kr. Kansanopiston kuoro","registered_at":"2026-06-20T22:30:24Z","symbol":"NIM1734727","token_address":"0x2d610af96f64c70defd0f1e49499d80eac1cdd3c","type":"artist","uuid":"ca1aa3f1-dedf-4f19-9a91-aed31de926cc"}
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 0xe265786dcd854a97f6a0dfd9c1157c2260d377aaca2b1bd4e2eae133baa1ab30. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca1aa3f1-dedf-4f19-9a91-aed31de926cc.json and https://artists.proofprofile.net/proofs/artist/ca1aa3f1-dedf-4f19-9a91-aed31de926cc.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 0x0d5e1b2578b782f6f7f94dfe52c079d5c2c52b5e39d3d3b47403f25b230d0c8a. 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/FISRK1700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc235b2cfd18a903a485435cac9e761ed67649a6f7c2a238fe7d7f6d74ca368c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FISRK1700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839ffd068bf4656173830cd22415bd546a6a94b787160898874f714522c1deac. 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/FISRK1700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7278046f2e4dbac077722126b11a139dd015e25e9321917577bf3acb097744bf. 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/FISRK1700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4737c4125ce5a77305b9c5493fd1c499f29cb28785bca0a68946108501adcfe6. 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/FISRK1700054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e83194b365c201e9065bd3cd505e8b0c906675488895689936820fd9cf5342. 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/FISRK1700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f52a7685e4168f13c160212eec58179ea861255a218a93d901810937ece7731. 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/FISRK1700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7da9f1109da301b4a6d87321d3fc9936c78c84002394b8d53a15809aae04a7f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FISRK1700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3b0c7d6af0db67d10f3d8d680d4f403addbb97cc5da4ba1d49d8e36c7203cf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FISRK1700064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895f164bd6d998586389cd9e740c2ab1639beef2c1d9edf48abd5ec1f957e09f. 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/FISRK1700065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa116e5278f4a3a66e3a43a970e2a62326de3fa43d4a19c27761e07ec95c1a0a. 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/FISRK1700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d62dde9e923da376eb29aa8b1ad7e9101a0e54065dbc21f524ae54914e0d203. 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/FISRK1700068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d22e843c82c975d8baad901aa219d51019c7eb160ae31004edaa7684f469699. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FISRK1700048.
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 0x985d76efba65ff85ef1dac4ced2e9a83a40ff5d0858a67016499dd502cdab853. 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/FISRK1700049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9ba5b006ccfab2be8ada3610d133621d4d93d1c9d37c0bfe751c6beea8f934. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/FISRK1700053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a328b533fdd4e28a8c293ccc3610856c6381d8b8393e6f342557fcb1559095. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FISRK1700055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719ce70e152dd0b695c521a445aae26b7fa7859d7e5a7b73ce8e07f6ae89a394. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FISRK1700056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e1e71bc939eeab1f7a98d5684bfad96a3bb76ea62f40234c8b62f4053923f0. 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/FISRK1700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c9dcae20517064c444f8b9648d206b6f2338857a1357db066eab81c649cde9. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FISRK1700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226d768a733f14621323c3e1807474dc068d9cf54b99b611c2b398095d0cc8d3. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/FISRK1700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74341a04989abcc4f930020257cbe1c040c634d929624095249c3d468fcb7b37. 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/FISRK1700061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71502130856ec4c85872722002c872530fd835137acb71e8b1eb6f7102cde762. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FISRK1700066.