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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1283bd37066176276ca8c186e57aa13ab656b1512b343b7979fcddce9e05e0. 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/eb9ca9ef-6708-4519-8aa0-2cd12da0e264.json and https://artists.proofprofile.net/proofs/artist/eb9ca9ef-6708-4519-8aa0-2cd12da0e264.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a95737f08e2e03b2cba6baacec95ca69c0d7f2aa4c530be8bc2563c9d56977. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ZANG11900084.
You Raise Me Up (Happy Day) (Spotify Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e58e2bf58cd47a6c2825cb564421885f07e17eafcb24a9d360a06559741f735. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/ZANG11900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39b2361b699301ede4d3b97e3a3143f985cbad26da810b7371d0a3e901285f7. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/ZANG11900117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8738d83d618aa49b7fea0d42bea2924afcf03e6b29818ce87ed62a06cb9370a9. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/ZANG11900113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e7dd312f7d155a4e102b661707cb1b81bf2632222d7bc1bcf16937cbd55973. 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/ZANG11900139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4937882621ecb4e2022afed3173261828a1f90b120098242830fd163b7edc92b. 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/ZANG11900141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbd7136a68151fafc26194b841cdd4274f0324eba99c95793e6c0420e5d98f0. 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/ZANG11900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4984a91ea9f58f1133005b40b186e50baf5e12d2248d95ec36647aa3a5ef05a8. 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/ZANG11900173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df56ae4e14197ed0a6d0b093786a8132893069f959cd973e68af886273c9521. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:30:07Z), 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/ZANG11900183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d60e71be2160bc36578f8e7847700c77826ad416bcf0e58e50cc86954389e8. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ZAC012500430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b4b39b1cde4e3dabc52bd6ef22c00b3d30487bf9be9a3a67b372b56ccf51a0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ZAC012500431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8027f0f07ceb5418b1f81b2629b83fa2b676d4b25299e11de12e1ff0e610a3. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/ZAC012500432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb178274a769c56f8f6a7321d1f5da3448db654f76acfb77dd1cd4a2eeb378bd3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ZAC012500434.
Going With Jesus (feat. Nani Experience) - Main Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c989af638614a6c2891581baf7217732d3965da19c552b9d4d1a5c5e7c2580. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ZANG11900206.