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 0x5adbf4ff9bd227c6bf88ba6ef321e420a3a549107cb700175e3fc66e820b7b65. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e64f937c-ae22-48e4-a98d-c3191bab8a5b.json and https://artists.proofprofile.net/proofs/artist/e64f937c-ae22-48e4-a98d-c3191bab8a5b.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 0x7ddecf8a061e64e04ed3d024b0bb7f13b64d144d68482716f8624033168bf71d. 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/FITAT0200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3c5bf0bd2160c9537296e93e332a6881efd004102c5d55159f2823bf4f05ba. 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/FIVLM1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce5bd7eba2c848e80e2b9a31510a64288bc250eb3ae343ad877e4d54712c97c. 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/FIVLM1400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6a7b3fe90fd30b2d0746c68b0279455ca334f6a31a308f88ef4e909daaa5f0. 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/FITAT9800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956d8a249bbc16861bf12b3be9db0878af94f5a138d25b3beaec46fbbdae75ac. 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/FIVLM1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29ec86b98599c214014527bd5624059c548fc260434cd6eec60951fd2a3d4de. 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/FITAT9800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19c9cc58d5177aadc404cc258004474d90b2ba2846d08da9982a6004a5b90e6. 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/FIVLM1400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35d8fd265dd92113544cd59b96728b3a49c8a9e34d70bfef4935a07d08535e9. 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/FIVLM1400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfac520ab7695c54c346dd1834ba1197d1373ce2f677a0b9f3c7ac830b09e2f. 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/FIVLM1400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bffd2594488f8f6eba3e18913576801a01b4fec048ab7a7e18a37631ebd238. 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/FIMKM0000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80554f4a8332f80d66c9d80d4367b5346d58773c4b8448570c84e25baf3ad7ad. 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/FIMKM0400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe517686271bdeb351252c632cc092b1b89f72dd88fd38df779d95798c803de1f. 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/FIMKM2000145.
Sulle Yksin Laulelen / Taas Kukkivat Tuomet / Onnenlaulu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639702578f0da67b9f18060cf3ade1ed2a472d145595263163472fdb6eec6127. 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/FIMKM1300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f3f79995a2881296d67022210a9255e6a9e29379a399369f380a8defde3b7f. 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/FIMKM0900091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450d39d7adc3886ec58780808bedee9e14fbd80cd1aebbd07db5baa67c9f8702. 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/FIMKM0600075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0334ef3db88d6c8fb56f37072a2507997826cc58d95a94fa19fc3d12c88842. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/FIMKM0400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9f70bc4859b1e232e73186a17f53069d8c3964d16e0f1d7abf907dc2908da0. 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/FIMKM2500177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e50161d447bca31eb710027e52f1a7c49bd967cbb300480993bf9670275a27. 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/FIMKM2400157.