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 0x6eb4b0979685811ad90393d010d1a8427cb81b9753561fe75be456cd7c174e21. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b973254d-7842-4737-bc7a-94df2325b549.json and https://artists.proofprofile.net/proofs/artist/b973254d-7842-4737-bc7a-94df2325b549.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 0x089f9edbb2710cc164ccc095da1928f29ec0f9dc6dd79462ca375c5841a47599. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/GX8LD2351587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90947e3875b559fb2e5f8c989bae5525aef135be564e2db033dc95a3c855995. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/GX8LD2342315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d2f4dbde03fb4097562d0edeaceb985f39fbe539820640301e1ac48684e778. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:44:29Z), 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/GX8LD2372851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3a0b846ae3edfd63a9ff980b6f70e38fa85b19d3be812fa48225b53b755172. 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/GX8LD2389196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7a7d288ebcc1819343cd92ff7258ba3a09212c29b6b436ba1ed4d998547801. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:36:43Z), 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/GX8LD2399761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b38b8cf3b46a758b480cc4acb8c3d4cad17d46666086eafe996c0c8202682f. 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/GX8KD2506681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2670d659d63bf76e1718193339ae1cc1a1b02f293d6fc04ce8b05f7b743683. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GX8KD2530116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7306d8959c6d99312c3a95429976d19274a88b378f998077c4699edec5f0ef. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GX8KD2530476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be74a26efa9c44d1110e4ab829c479e07435e15c9c8f5d02ac1ebfee1ecc8f7. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GX8KD2564711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab84126aae941d4d51538e03d299adccdfe9d62203ed60f195ae5ea9cc5f774. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:09:29Z), 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/GX8KD2513475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf60c89c981dfb8d637f82644c9bf9ca8ad95718ba6b42ada6965ed838971fef. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:09:32Z), 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/GX8KD2562922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623c04050ffec8f8925160842f5939dd54ebe7d711842b724a445213d9388230. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:09:57Z), 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/GX8KD2542757.
Scheme Until It's Your Reality: A Hardcore Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecac64c14a856612a7fb759f4fedddd008f329b9c308164856126e3a4d620b37. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/QZQAY2374784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6416132d07674f88a011f7bd1d8258f79fd91ab001b2757aa1cdcf32c1f93fde. 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/QZQAY2328383.
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