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 0xc357e2491736c0d23e044fb6e98c5e3a8dcbf1f3c1df945edd93c40d1e91f6c7. 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/1e0131e9-5bb1-4fb3-9ee7-855d89ce1b20.json and https://artists.proofprofile.net/proofs/artist/1e0131e9-5bb1-4fb3-9ee7-855d89ce1b20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Relaxing Ambient Rain Noise for Meditation y Sleep
Relaxing Ambient Rain Noise for Meditation
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 0x81599a17be617ece5a7485909be91077f997ed69b57c191c779a3d0c4d0d1715. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZZ7T2410098.
Relaxing Rain Noise for Sleep y Meditation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f5ed89aee3e22202117ab5b6ad9e45a31f4c22139adfebf07b60cd4a58e952. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ7T2410103.
Relaxing Rain Noise for Meditation y Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b167f8d813d521b465d88b6f7b0a116529da1aa981d0438f5edf9e30846938. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZZ7T2410104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5116306a3487c75b649b3dee170beff52cb58123ba30d1cfe9050e59ab6d55. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/QZZ7T2410105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4243d2923401756c34a6abb5aa4d5242878d611d9f8c9e94c78e70b0c23498dc. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZZ7T2410114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f594a9e18f49d188feac218d46f449fe51714adc732d2c6e133cd22caa48ec. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZZ7T2410119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743bd19f14f5e8ced895dae50e9316f772df42cd5b059a42fba647686efd3a1c. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QZZ7T2410121.
Raindrops Whispering Stories to the Earth
O Abraço Suave da Chuva em uma Tarde Quieta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1cf95dfdccafacf00adf5b11f93a090e33dd29104bafbddb3646609ecfa89f. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/QZES82588513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12780e8473c0b89b38ea64192679cde98b7496cec309b18e292f06536242edd5. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QZES82588516.
Memórias de uma Tarde Chuvosa no Interior
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2e517e22132215555d162bfefdc85ed286469eb193f9dac7af5f1d4c3b17d0. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZHN72544036.
Lluvia Intensa para Dormir Profundamente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebfaf86ed66aef913b0c9b749195a2d80c67ec1b256bdfd46cdea446fcfb582. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN92520156.
Rain Makes You Sleep, Calms, Soothes, Relaxes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadcb7e4ed4ef1adfaedfbb9f5ea95149e4746c70ce951547fef2061292d5d5e6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZHN92599186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f49752008f9661cabb758620f2bc826995ea8cdc935f0fdfc662e59e1d3b9c1. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/QZK6Q2568303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a311dc9233ad3a6f7ba6b6315de64f6e8854426bc1831c4e8c6fe6dc1f86b86. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZK6M2590820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917fca7c1085e6172a29b3be478fa7be6bcfdbba4e4746f4c4b2b6ac69e181c8. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZK6K2594042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968499b05a764de4a2d57aad16540e78495b8f131754afc0122608365e5d53c4. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZK6K2594044.