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 0x73305a95e07b8842482d026baf208b128383e8ca49e1859a6e5d48a79f2dda2a. 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/25745376-b715-42fe-8372-e8f3b9d5367a.json and https://artists.proofprofile.net/proofs/artist/25745376-b715-42fe-8372-e8f3b9d5367a.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 0xfd67a8d595216c88ac4b4879d8fe8a6677d6c63d95e8b2ca1fe2607e9453977e. Chain 2 (Bitcoin): anchored in block 957648 (2026-07-12T03:52:24Z), 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/DEAR41859446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e2f7d3f0c14c7d84aa57a65eb81552e1b9b7b2e0f78d32f850c589531b2bb5. 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/DEAR41974648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb817e69f657e0e851948b100528567d02493e63f887c81f8e9256cd505bcc019. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/DEAR42220683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244482a7bf21a74ecb10cc57b6504135ad73d60c214add75afa74d08bb98ba9d. 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/DE1JN2451032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa55b5c84227550eeb45aa457614e37e12c12f2fcb9f655176295396cad96cf4. 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/DE1JN2450918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9944424c6f5924510787e8fa6307ffeb7153694ab03a3d0ec1b83d319f889266. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/US83Z2505843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61991a1c92db4fa4e09a32f9371452e88651362652308e0a3b2df94fef114a44. 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/US83Z2505844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75ce5117c08a976e2214a8cbfe3cfe49c508fc849a22d600fcf60783e9053c1. 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/US83Z2505845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe281406163b8300fc3a64e12cbfd9a8591380e138f4a4e5f2a3ef9d8359897f5. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/US83Z2505846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe105ccf58740f57550f67b76fbfee90cb7d41331bf683711316d417408576158. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US83Z2505847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5650f4cc21c93ad45cd49b3c34a67566f5692da438ab9fe26f2e990feb02b7. 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/US83Z2505848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9654e6e511fa5831b59467f917532bd3857cf60659678edd7210e6d5aa2ee6c9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US83Z2505849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ecc55f8ad6e9f51ccda5e4e801828130d067c907b81c8824103b471eca8b0a. 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/US83Z2505851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44235a6ebf15fa03770191aa9de36466051dd67b695362893458a6c52fbe60f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P2417311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe76849722a6bb4d6885140ded531a551cde268c1821c895d49d45b8b545944. 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/QMBZ91910640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd695c108f812fb84dbc43c8f2265af92a463fb5244dfd08dfab929d93c278c27. 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/FR9W12307692.
Lunatic Paradise - Compiled by Sid Robins & Space Wizard
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5665d6c2c2a6f3f98cd592f724162193cf0f73191a30a11fdf3a86bae1d7c4bb. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/DGA082347890.
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 0x4358edb9b60c4032b6a09889a306d71e472e0f86d8984e79a284eb5f7239a423. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZMHK2227040.
Tales from the Shiny Woods (Vol. 2 : The Wise Shamananas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e3e895a4934c19c064bb1355198e53a73a32a263222d52690486f775c20d9c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/UKR6V2371763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8638a95134618365247f564178010a63fbb2f2bf43457abf6811a29cf63fa46. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEZN82365867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa414b129fb2d2e3b3cae53c44e63b4a0ef47b88569f2187ac468d9567715200a. 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/UKR6V2370871.