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 0xe5bf5b175cac642e9a75e306c3eef705da7eacdd81936a347736fa3ecfe29213. 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/3c53e847-8034-412f-b3fe-5be86ea91e4c.json and https://artists.proofprofile.net/proofs/artist/3c53e847-8034-412f-b3fe-5be86ea91e4c.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 0xd799cf3b4fe1b6af73d0056e2c752da200841b32a72df15d52a66992eb2d15f7. 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/ZZOPM2237048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bb8c797a038c7682f064e4c4fcabd1d493eb8207533a86843a531c99e4b7c0. 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/ZZOPM2237053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12a62929ddc39fde1ab86b08a320ae99dcde57b6adeb7b078832325690d262a. 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/ZZOPM2237055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef7980ff6937652a49d7d1ecead824007af281ebea896c65fd65fa87cd05979. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ZZOPM2237056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf374702e52c957535b32598f177cc6505befb3c379ea63f21085acbe058bb8b2. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:09:19Z), 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/ZZOPM2237059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca8f3a749a44ab3b5a66c43aba5258bacc3c0cf4ad0b8ff643de0419e603619. 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/NLRZ82200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174e077177c82871b06d73666f23d814cb563c755422e6f82b2248a90b2fa026. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:04:38Z), 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/NLRZ82200161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0e99e65b244961a65a533c395fe147d898a780a9b011500c12f3af99dc5ddc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:12:07Z), 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/NLRZ82200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4342fba1908d9b2770435e094fb8329782a3a541d9c951fcd9c8a96e5f88624e. 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/NLRZ82200204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c016c8dfd507812362ba9a04a889da0731c6d93a9262f37ef450718a9bb083. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLRZ82200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c0af3427b143c509cbf4e82a894d945c90c84262996cdc7942a1a557bb2e5c. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/NLRZ82200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4459047303f45893a911b29004ec7864a2fa03d37e9ba85ad98e0e20a7f0b472. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/NLRZ82200218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79dee2eb6dcbd4c5842b017a5141ff272b74a83f822ff2fe0e0c3e12e9e224e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/NLRZ82200222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007e5ec47b869813d82bff326a2cd59db2a1dd6e2e5105afb09bbff0948f063c. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/NLRZ82200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee1779b0b291e2f5337817eba75836eea1765787022c06b456671dd16012d00. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:42:10Z), 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/NLRZ82200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4770dcbecc5e94a39e955f930f7e236bf559a7c458c3a3581217ab8236e43e. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/NLRZ82200196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c61a22ec0fd06f4398c8fcd0ef737202bb00e50c2a497e9a9f8d1334aed7805. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/NLRZ82200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa374f51ce8a639de9cc1cc537cd003a8aaec38a05e29d583e56433fc3186aaae. 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/NLRZ82200045.
Blauwe lucht en zonneschijn / Neem me mee
Kus me voor de laatste keer (feat. DiepTriest) [Live in Groeten uit Appelscha]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edef696e49fa5171e055835c811ba10a77e5953b2b3a8d8b0f212224226c439. 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/US39N2203412.