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 0xf59fe5f715dc67dd33d2f7ef60a21b6a04f85ebcafe4ee9c03e413f56fa50a0f. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/781d0bab-e2e8-4468-9701-66601576a663.json and https://artists.proofprofile.net/proofs/artist/781d0bab-e2e8-4468-9701-66601576a663.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Turbo Overkill (Selections from the Original Game Soundtrack)
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 0x162a335c8dd43652e32c79295fa779abac0eb1857499717b83aa09d4f9f14a49. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZ6K42300291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170db02a8b2e0844dd92ee5ee023f6ab7f6bcc8b58a63250ad6cece108b7af33. 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/QZ6K42300294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27bdf81c113f7b5ae7ffe563e3e6d1320b1669f2c57f7c0267b1bd0b7f2a21f. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZ6K42300295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6f9b0b84f71fd2c79e90a366599805a0c74115693328b54c86c127be33acce. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZ6K42300296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d71e77c24f885d2e6c1df52397e3198ef100ffb3eb7acc2edd5e7353109ac7. 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/QZ6K42300298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a3feeb45f161588ba4efba4e767d95f1831f4a093db973391dcde1587b8a11. 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/QZ6K42300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210ae5e6c2cece569060f74c5629d320ae5ef276ee7065c02965cb547afa019d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZ6K42300303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49dc3d3dc78b18e9d49cf7a70ac22c2eec6da7d277a56c4f619ab61a5d1338aa. 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/QZ6K42300304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5d62a474df2d22db7aba5a1194b605bce6baec54670861873b7df21074c097. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZ6K42300305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e4d89e6c51b6f3b233d6e761961bca0ae71bc9df4c590d4d622b2316d1e031. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZ6K42300306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077344de1d82ca0f8e2890d18f1b801600f72125e119b1ac09c23dc093cd7a34. 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/QZ6K42300307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf540f6aa584a2a6a6be3deaa1e8a098284043f12d39bfa7c9eb4be8b18aba241. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZ6K42300308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1698668f2ec0954d82446e389d7c632636973e5a5306c023d55dc1bef6d92ec6. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZ6K42300309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cd45445c9910e9267d0c66d0f5d409285baa8683fb42c03fcf3013f8758228. 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/QZ6K42300311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d16bf3d8a59ae00d45da2a6018352ba13830c403032432bc09c4b5348d52bb. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZ6K42300312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f63aa3e04915821b3e7970b18050bc5c2a3838628b1310944376ac0d04253c. 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/QZ6K42300313.