Innlandet is a county in Norway. It was created on 1 January 2020 with the merger of the old counties of Oppland and Hedmark (Jevnaker Municipality and Lunner Municipality were transferred to the neig
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 0x33b5e348a50aa8a83eefc103ff5012215d199fb49201f13a0b5e4c0197e9ff5b. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12e485cc-1bf3-47d8-ae11-746e6ccc6d14.json and https://artists.proofprofile.net/proofs/artist/12e485cc-1bf3-47d8-ae11-746e6ccc6d14.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 0xfc73972b788d94f185515c10c19e15fd620f63edb916b56224df3827724e89de. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NOZ5C1801010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862f59d19d62dc42c29928c60316f27c7b2fb0ca527a78cd98944241f337d551. 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/NOZ5C1801030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffcaa6853fbc97e8d6b8085cc6c9455ca68c40c730d3fc1e4578cc383d3ca5b. 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/NOZ5C1801060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a8e7268257652222fd0f5d8d91befa022a4b5901ece95e9f244a817864fbe1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NOZ5C1801090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9478deb7247daa0167e65db9f9ffe1372107e7f6a68f82a7b1772fade2f4a352. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NOZ5C2502010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f9d0b2ca97030254a274d5ddf755fcb4ae7e2668510c3a8d05c509a50de4c6. 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/NOZ5C2502020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905033d5ec67d0f8e420f830202d12ea9e2181de7b1e8dd6fff95749631736b7. 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/NOZ5C2502030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1902911f62e3245a1e7535f3d4b0cffa3ef4d45abec88d8ff9bf260e7f7f1d25. 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/NOZ5C2502040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ac8a10d67999a5a6cf91a1803be835529c9feb993ccf9ef5721bac96258db1. 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/NOZ5C2502050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa690b3a501d46755d4f403973147cda9b7342051a43cee555c312f04e876a9a2. 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/NOZ5C2502070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f8bb649776ee5729d2ec9ebda17055dd39d23edcd34988795c3df41e5ffba6. 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/NOZ5C2502080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cd124266c8d368fabbb8c373cc6094dc9352366f219b09d28673da343ab6c2. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/NOZ5C2502090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda730099c27490126fcffc9d889533b8e675ab0ddb4efd6a5247fc23ffb4fc66. 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/NOZ5C2502100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ad722eff4e551f5e1ff705a14e8464a98d5cb129daf7f9b3c7c227d7efcce2. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:25:34Z), 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/NOZ5C2502060.
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