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 0x8a08192bd9d1cb3d67b7b907e1c8ece97c7d2adba8c02cb0123044c196373d08. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52af6178-c97e-4261-8319-5a9a49308551.json and https://artists.proofprofile.net/proofs/artist/52af6178-c97e-4261-8319-5a9a49308551.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lofi Focus Tunes: Concentrated Work Rhythms
Concentration Music for Work: Calm Focus Music Productivity
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 0xf07a59de0840fde350d56e144cf92143c4b830ef0066b453a1a7f357fbd95d06. 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/QZWDE2413671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1c15f4e83307df556ba3e13853336b563b728723ea7f6de6dc62dd5236d8a8. 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/QZWDE2413710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69bde9276d56d99b93e6d03f879e4242a00941e950aea571ddada974759c9b7. 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/QZWDE2413720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cd23be40958ec89b480313e08676753aa84a6960125534a372d8cb6da40e3c. 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/QZWDE2413729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9f08fe370f9a3d01f15bf3b04c0eb7cf98a0163d8da2365ab6e8a555fb57e5. 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/QZWDE2413730.
The Best Music For Focus and Concentration
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46d9a9a84fd6ce8e69108dd0706f70d3044f159ee71ede30ec9f78c7b0c34d7. 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/QZWDE2413733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2ac141d4f05538704f84b1e3adbc9dcbeebc94c6e4a1c1b80dc3f4c0447ca2. 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/QZWDE2413668.
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 0x60d9ba1df8f0fe72c3df4c0fc8bd0dd6ebf129c7390f6a149e6f13e391988ea9. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZWDE2413673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884f9105bd74465cb6ce0217c788c85eaa6cecef7d9a8daee5cfa7fc29ba38e8. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZWDE2413675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1939cdd9b52c676e20bf0ca3077cd607c2e3407799fefc863ad867cfd5834034. 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/QZWDE2413679.
Background Music For Focus and Concentration
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab3218452f03d086aa3b865f8b13ebb58fcbca66714ab1482dbd5f702479777. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZWDE2413690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba57216bd402ea73f0b52287e4297df6e85172f674d250773a9537f3f9eda6b5. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZWDE2413696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca829805b06d092565e47bc331f825d07458fdfa5ba57ffc8087b82139c2517d. 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/QZWDE2413698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b5a56bfeed065a92603ae881690e1a406db38b10f095cc90aedaad6b517d92. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZWDE2413701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ecc7862473821449d35708d563afc762623f0d5762dc1ad450cd6c9316f345. 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/QZWDE2413706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e691806287b02f5c71d82e7ba06814e2175a25bea979c9b9a6808f698d2318. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZWDE2413709.
Relaxing Music For Focus and Concentration
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd82749a36accc32756102aa285385f8268b55891d6578da00d684cddc9a9c6. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZWDE2413712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35ba53abbe12bb31aaae80fd60f68ca2d85019f643584966daf95d5fa356846. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZWDE2413713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cb5a3a6f80caffdf683294d32c2d7cde55f6f62f1df4c833c68c57583f2a62. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/QZWDE2413719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6295bf8aa8805e28c6ce08cc6bef6744729168b8303d87b68bf45e8c069d877b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZWDE2413722.