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 0x98c06edafadaa1fbd360480b4f3f81325402ba90cc8e8c271b1b39c39b905673. 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/3ce11e71-84a0-460c-924a-348a42621e20.json and https://artists.proofprofile.net/proofs/artist/3ce11e71-84a0-460c-924a-348a42621e20.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 0x7be17289275e7e46fc1566c3161edd86dbafa880cb5f236273d25c44b27f54f5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72305200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece6998a1bd1485544fd44476aa16db17a78671effba0954a6ff92cf812efbeb. 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/USUM72314356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8edb35a38745cd363290284d9339c1527d8a117e5bec4178d56a3c443139a5. 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/USUM72303369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240adff2e17245ebfb533bb2b27e0acfd8725138753f937aafefc7d5fcba1089. 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/USUM72314363.
Rest on Us (feat. Mariah Adigun & Jekalyn Carr)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a36349c999ceb8cfd2afa29673e24ce27252b9117071157fd6bedbb87d85006. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX2206177.
Rumors (feat. Ryan Ofei, Mariah Adigun & Joe L Barnes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d025308ad1c4b5c8aa4714ecee30959a5f20386246c6e440a12fc9d519a859e. 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/QMDA62167171.
High Praise (feat. Ryan Ofei, Mariah Adigun)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3191fb8c100f488c486d18cf4237437c9e1ce3ce7a25babe97fd5743029550fd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6P42151037.
Rumors (feat. Mariah Adigun & Aaron Moses)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859d160b4942388d15a2151f0a04e1d3efc3288826f27fc27e813d3e9a157596. 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/QM6P42151042.
Come & Move (feat. Ryan Ofei, Mariah Adigun & Joe L Barnes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f007aee9973da0b20b9b08f9a317f312ac7f6f5124826d2ebc533baf1553da. 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/QM6P42151035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece6998a1bd1485544fd44476aa16db17a78671effba0954a6ff92cf812efbeb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUM72314356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d5a43a7f35d170d454153be2828e6760dcdcbb242e7bde3c2715654c4301e7. 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/QM4MA2100008.