1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc4304cb73f2e0be66d669de71070364171ed1a69c0580f4175f8da81c171d85c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/704ce333-6e5e-4994-b96d-a8b28a875e69.json and https://artists.proofprofile.net/proofs/artist/704ce333-6e5e-4994-b96d-a8b28a875e69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Barnesanger - De Viktige Bursdag Og Høytidssangene
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 → block OTSBitcoinBlock must exist at that height 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 0x5ee53e3a4191b47c258b7140ff658aec0af86c125301a466d69dbb98a9b5f28f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NOX9X3456701.
Hurra For Deg Som Fyller Ditt År (Instrumental Versjon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b9d9f42a9dc051e46419899373790af72d88c4cb0ab1411f59421dde848581. 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/NOX9X3456703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406c947d52236033694dac79d414455a39b5a87028d83c748f192002ecab2aef. 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/NOX9X3456706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8ad6349be95bdc97f226ee46f68d5c3426780c1f0d8a781b12cbf84267064e. 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/NOX9X3456715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3898b5fe45eaccce210468f859a5b29e3a39d0c72741c318b9b8339347507350. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/NOX9X3456308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5624c3e9520492c577f6f5b0503d9345442e48e3fb34dcdcba5452628c4774. 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/NOX9X3456309.
Barnesanger av Thorbjørn Egner, Alf Prøysen og Margrethe Munthe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa645ef98125c8008bdd28f43870f575e496f8047b2dc24c4b8cde683bf27af. 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/NOBA10502020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c773e89f6fae0390314acf6ac5e8224a2aa8444db72d9385eaad17f268d532. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NOBA10502050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2283aa22634d2e8ea23b567c84dc3097d1c099dd0e4dc0eccd429f53bf3e3f. 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/NOBA10502060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d5e29011a1552ec5e7877a010f33dba48b5887d2584dd333389cd3921dd7c3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NOBA10502090.
Barnesanger - De 24 Mest Kjente Barneviser
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf948ab673b68029ce1da91c6a986862c0c6cb983b2f7ad5b8d610274f3c16636. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NOX9X3448401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e72b113490b8ca6170fc9a57daa679afd2262557fdb25f20636795972c3b5f. 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/NOX9X3448402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a57d439cebbe3b9aa477bb6c5b652bfc6e39dd763903210010b62c5295afc3. 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/NOX9X3448407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa570fc79992b91ef98c368abcebd60ac8500cebdd1d164114f2fb97d62c295f0. 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/NOX9X3448409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c98f004fde70c3668b8aba2a4cd5edc5880b99c1fd603e9d25296268a5ae66. 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/NOX9X3448413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225bf80648f620f70b6a2cdb3aa313516f6642a1c21f5bf473bed7a5ee9a604f. 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/NOX9X3448414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea7fc70e755dc42f09530609bb665476f65f262cd695ce89982210c5dd7a128. 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/NOX9X3448415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4ace61eeb73799ee2e2c57638fa2bdaf69d4acd8db1c1300b9f7a24c21eadd. 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/NOX9X3448418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83db54be4374e151433f11ebf607e26d7c49cf091020dc54cb3d3abe0206c483. 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/NOX9X3448423.
Ja, Vi Elsker Dette Landet (Instrumental innspilling)