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 0x9e3967a7ac36634d6af7d049ebd6b7d67a2e7346388cfaa5e3b9ff47f5288a31. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7473782-fdb6-4816-a88d-df9ce613f879.json and https://artists.proofprofile.net/proofs/artist/a7473782-fdb6-4816-a88d-df9ce613f879.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lounge Music 2022: The Best Music for Your Evening by Hoop Records
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 0x0c3030c9a23bb48b2bef1e084686018ffa2d3144c3ded351624bba838f62c588. 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/ITM2J2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a910b572f574688732ad444025a156b940e2669fcb7620f581d125b4852360. 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/ITM2J2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28326a420513cef4c0131048b7137cf73217ce5f2cc59b3feefa8393176769b1. 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/ITM2J2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddfcf833aa706ced30814d9aaf06c28a8e27ad5b74a07759fa7ccdbba01f8c7. 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/ITJJP2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0953e02fc7c174c03be24d092d9deaeefc897ddd1198a0e269035f93de315142. 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/ITM2J2100087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f19d3c589c652113551446f541c1135d06ae34f71556f9a779cdc6925690a37. 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/ITM2J2100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0dd434b6b0b839b28e057eb65a592dbd304938caffcf97e34cf7154aef9d1d8. 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/ITJJP1900026.
Ibiza Chillout 2022: The Best Music for Your Relax by Hoop Records
Summer Hits 2023: The Best Hits for Your Summer by Hoop Records
Morning Coffee 2022: The Best Music for Your Good Morning by Hoop Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7099e8882924ab93eea837a2241de9f7087925e27ede6abba0749ada56b7b609. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/ITM2J2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3030c9a23bb48b2bef1e084686018ffa2d3144c3ded351624bba838f62c588. 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/ITM2J2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f19d3c589c652113551446f541c1135d06ae34f71556f9a779cdc6925690a37. 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/ITM2J2100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0953e02fc7c174c03be24d092d9deaeefc897ddd1198a0e269035f93de315142. 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/ITM2J2100087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0dd434b6b0b839b28e057eb65a592dbd304938caffcf97e34cf7154aef9d1d8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITJJP1900026.
Lounge Music 2023: The Best Music for Your Evening by Hoop Records