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 0xb18dcbbc6cd76a33a46f95a653d4b0256e02422273efe23a984b42515719434d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6577f8e5-ecb0-46f4-acf4-787ebca9cf8e.json and https://artists.proofprofile.net/proofs/artist/6577f8e5-ecb0-46f4-acf4-787ebca9cf8e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rain for Studying: Immerse Yourself in Focused Learning
Fire's Work Rhythm: Energizing Flame Melodies
Ocean's Focus: Ambient Sounds for Deep Concentration
Work in Rain Chill: Calming Thunder Tunes
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 0x0ad7eb9e0942f1e940b669c0f90987b3b9050e65d77177c525526a56d6aa60a1. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBWUL2443975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a41a992e4bd6e18ccc3663c266eeb9a2f1b567f5779b76d44c3926072d3ca61. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBWUL2443997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6ed47a89629f4ca64eab9fe6e69200273a510faf7a0a132b2ed0a976263461. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBWUL2444022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328f64e10161ac2f3b6cb19a688737b5efd3f8ecf6fc33105072ef6d7a1fe0e6. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBWUL2444039.
Binaural Productivity: Music for Efficient Work
Music for Deep Concentration: Focused Beats
Work Tunes: Music for Concentration and Efficiency
Music For Work That Keeps You Focused And Calm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6916c8adca2e24776417814ee9291203a104803bb6fa7f6a3e0bbc445f329fc5. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZP7F2428210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f75a80499588dc2b968a1769c1cca939baab2f2a3b0a977fbf4e7be177eefd. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/QZP7F2428211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acbf607feccb39b4a58c4adf62057348ae0690965160797ad355d3cadf4af2d. 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/QZP7F2428212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda7aa62180a2812806a515503fb055bcd57d18d95b5287076740e2492b4b333. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZP7F2428213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8de8de9a72cbfea5cb23511b2558657969604deb488efc3850e4d5d9384e87. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZP7F2428214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19a339ee118da80065c436bfdd83cbfe54a463626ee559811f2d580a3261af4. 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/QZP7F2428215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30966c4b92805acc0be599635541d2bd78ad332425171a178670df8a88d97261. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZP7F2428216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e9173178d5fb20a014192295e0f700cc4b929993297fc1446d692889184527. 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/QZP7F2428217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f27c7f6ca9c986aa00a41c1e6d44e94f22d31e121bab3fbe6304c77dc2ec225. 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/QZP7F2428218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe775f110023646e6d9a339d89bf884846f36d09dd19d33a7141cbc1b029cd346. 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/QZP7F2428219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f380968c1bb6e9976412b8f7645b64b287813968840fceab4451f00cafe32d. 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/QZP7F2428197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035072f83a8f5c326ff00e3f061afb39b6d883dbcaedf7b13e2a42426cc28194. 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/QZP7F2428198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a3c2814878be7497f7c2b32a14812678ee367b723f92c98ce71d57c9bc9f16. 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/QZP7F2428199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62b259830133d3b06ce20d5ed190a29d9d9ddd6485fcccb2ff638d4602c4489. 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/QZP7F2428200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7784aa2fab1c2e0dfe43ddb04089e5ce8c9550cd2234584aba170aee4d4a9a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZP7F2428201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f83497ba127c12196794bfebb499ac283ab828213a5c43cfd19b019d55f422d. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/QZP7F2428202.