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 0xc6c5e84471a67ddae925e3d5fe4519f7ffdd4a18ba60fe53907330930627961c. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d9ead1e-6561-44c8-9ceb-a515eb0c6dbf.json and https://artists.proofprofile.net/proofs/artist/4d9ead1e-6561-44c8-9ceb-a515eb0c6dbf.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 0x91b68e7d4bebd7e37053464f366fd0fba1a6faffe9175c6382355bde6da09af2. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZTAS2228677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8e2d6d1cfb1cb6620f2663670848a751fb609dd8440ebbb3ccd6e08ed8556d. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZDA72303570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b51f3df7fc6399c8a14c3fa6bc738542cb1cf211765fd1e8ed1179b7ff2136a. 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/QZK6P2302524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7227eb0aaad4fe828f275cd0435df6fef66589407892e8f95d939949a416927. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ES75E2503289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b651df592570093a8e50fcc6892a1f91f0121af695235ab44db61be0225adc. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:08:53Z), 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/ES75E2509977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284d802227aa8d7f24b2d9dc0023e98a7ad16a81ff758c7aa7c2ecd584e6d4a6. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/ES75E2511040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f7edc707dddd6f31a90967ac19ff776a56864c48fc0dc394fc12f7ebbdf5da. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:06:17Z), 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/ES75E2511807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ced441ef7db2a5b20843a6633e9c35e8fa122c462ea15be8428eff3a788cc1b. 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/USP6L2301949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30649aea51655a9657cfff17620c6542d58a709fef7deb8c8593c2d50dcb5f8e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USP6L2301956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb4df9842830e3515f0545ab9afaa0fd8a007d47de6dea26c7082001a9c79f9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TX2529399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff8f7d60b0fcae25f4152da5ba4f3bceaa610d9448991a965a61b0a26a36ff5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USP6L2100977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56d551ad86e4a8c305f063b87a6aef5fe1ca41d83a543c2a832a11fa8e726c2. 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/USP6L2100982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1eee9eefe879592cc6584a6b977d5c33225df59562972c89ca8f2323d7c6515. 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/USP6L2201096.
Minutos de Presentacion - FMS Internacional 24/25 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb191e56d0c627a30af308577007435fabdfaa4afadacbd4003d0748ee4934429. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ES64E2506926.