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 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 0x0f3537cb7e1f4f6b43fdd84fdc7f43e35845116dd3d5ae2e5b90bbc0f78d014c. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b1fb887-6593-4710-89a8-0a946e4601a3.json and https://artists.proofprofile.net/proofs/artist/2b1fb887-6593-4710-89a8-0a946e4601a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Focus Enhancing Music for Studying or Working
Cosmic Harmony Music: Inspiring Ambient Background for Office, Brain Stimulation Sounds
Binaural Focus Beats: Office Music for Mindfulness Meditation and Concentration
Tam Odaklanma ve Dikkat: Ev Ofis Müziği Arka Planı
Telecommuting - Work from Home with The Best Relaxing Music for Your Home Office
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 0x7e5c21fd6585bd683053ec7a0820d26f456f13bc5b986a5d91bfc7231299b5f0. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/PLS921862320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5696ec4df272eb3c8e4c9aa31ccea4bf809b80c30457d1c93c2f87d640b655d2. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/PLS921862321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97dcb0f14d6c304252090244461c1dc78caa68891ce0df6e95d78a3b28257d46. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/PLS921862323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5a78cef968130751023ef08a41d58f3a171979a476efed5b48e93aff9344f6. 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/PLS921862324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d5893c96cf6726bd4b4ee3628bb1cfaa0f06d56517e710633499e03f54b774. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/PLS921862325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e517510542e06ad6ed1fb9077b41e345cf198da17c118738f4eae397d5ec9c4. 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/PLS921862326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef9fbc73db7c349e0bfd735d52ae53b23ed6d7e90097ff384e5fb7e508e6033. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/PLS921862328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8ebc7f5fa9d839e339ba7350aa608a3a309d13e93eb9e06a781eb888f5c91f. 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/PLS921862333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2d4b69e51df4021c8ec65b8e84b49c235bfe3fea5034ce3c443757453899af. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/PLS921862334.