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 0x0754bdc1eef4ca58470c6f763565084dd2df9b204e352182cc7940618e52a686. 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/af4fbe2b-3fe3-4e3b-b912-e796ead34402.json and https://artists.proofprofile.net/proofs/artist/af4fbe2b-3fe3-4e3b-b912-e796ead34402.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 → 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 0x62101388751088e746bc23a861cf31f1e04ae13045960dc21fd9650d7e96aa2a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NOSKA0801050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecdb2770deb820c913e8eba182a7f7ca8653e4b874747a22a2bc705674bfa6a. Chain 2 (Bitcoin): anchored in block 957705 (2026-07-12T12:50:42Z), 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/NOSKA0801060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377496ea97b71cc0dfb6e9cfb88e26dd2856caef94df232c9490af46c60810e1. 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/NOSKA0801110.
Toppløs - Akustisk Versjon 2012 - Bonusspor
Toppløs - Akustisk Versjon 2012 Bonusspor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e28f873636cab3813f15f1b92830128ff3855e9fc5a960238895f81740763a. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/NO2UG1101040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5351f9be70f0110ffb88814a1486a168164cffcfe2cd178021f914fb24f1bc. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/NOHEK1408010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfbf5007799e903f4226ac8c30f9c2cdbc10731517c8504957ef26490a2ea41. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:59:24Z), 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/NOHEK1408020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff4ab33b9d1aeeb24814a613c281ba18fa2816d4be5385d1ea0e9cc0b984ee4. 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/NOHEK1409060.