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 0xe28bc03c8ccbb7344ac7b874d0021bc844f8185edb260e40fba2f0bafe6bc80b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e6d9f9d-84dd-42fc-aa66-d11a20d31f08.json and https://artists.proofprofile.net/proofs/artist/5e6d9f9d-84dd-42fc-aa66-d11a20d31f08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Per, Pål og Espen Askeladd - Fem eventyr
Askeladden Som Kappåt Med Trollet - Ti Eventyr
Mannen Som Skulle Stelle Hjemme - Syv Eventyr
Per, Pål Og Espen Askeladd - Fem Eventyr
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 0xe59b565b3d3b1dd95accdfcd117e4f938492b4f2ef286fff0937062acf32ef56. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NOX9X3456901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7354e84d66714a1bf562624f26b8712cf6c364004e2dbca7ba3daef1f7ee808. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/NOX9X3456905.
Askeladden Og De Gode Hjelperne - Fem Eventyr
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b55af94beab8906ecf400677d46a14fc8518385acb01ef45eb68e7f8a6f3072. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/NOX9X3451603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a59a2d184eb822c2bcb8b0e9ef588b309bb7b8dee965d1f1534d9eb710739d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NOX9X3451001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348df8abd6585b28a2cfb118490406a07dea4c55f9adeb1db5cc0422c2349b48. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NOX9X3451002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c011fefa9b66f23167ca3f8da413b89bcb5a85c39402948a92f28304e97dbfd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NOX9X3451003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe084a9ff71e318e145eb8c95915a12d2c93a00b8523a73ef725500fcfc2536fc. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/NOX9X3451508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18688f31c1205caf0564ca074269e84c4d162704b6c98bd703bbe5e40af6bd97. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NOX9X3450901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0499704b31e048f92eae125562c8169d83b8ef8073fd28b3478681d78acfb0d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/NOX9X3450902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc546b3799d96e4bc35d4f35fc584b56397454cec70b1bed8c9d9303933e107. 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/NOX9X3450904.
Per, Pål og Espen Askeladd - 5 Eventyr 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e76fdfde69a9864e8f5a9823ccde13dbefdef1fbcc206bcaebd01f16db79103. 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/NOX9X3451301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb097d19a05a0cd57633eeec7f97c99a8a678e6951b32fcbbbb96cc4712d32871. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NOX9X3455906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31eb8f4c9566ed84e3cf3ff26aed9346d8a4175c78d3553231538eeb1534288f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NOX9X3455907.
Småguttene som traff trollene - Syv Eventyr 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cf5f50585900aed9cb43dde713e9a7eb62142b3bd488864b4fa2982ac7520b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:34:39Z), 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/NOX9X3456002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6060d297d3fbfd07f637e696c9eb80f84f4e4be62390d2ccfbd773197979733. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:37:09Z), 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/NOX9X3456003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bfb9d28dd614239d59d88a34bf7786e381d514b47eb6d00977661043f3354d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NOX9X3456004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa56678c2eadf15490ee5e9f52c85bb7fceab566b1b6db5f17765f27dd33d13. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/NOX9X3456005.