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 0xa2347d9034483174386e95b687a0487c28f668030dc695f8fa617e5cabbdf73c. 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/e759d490-02d6-4d93-922f-841e0187b9bb.json and https://artists.proofprofile.net/proofs/artist/e759d490-02d6-4d93-922f-841e0187b9bb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x385dccecd90a8470d433589cf977959a4d94b5cb63345b3c9e22771595df3a77. 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/QZJDZ2000378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465b1bc2cf4c7d0d5105a2742ec4b5ca1d72fe7c6847a9bea2ad08a97a2734b1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZJDZ2000722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5857a3be51b55f725c903917a64764373a877f67f7c2f8375de4cb402d2c2c8d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZJDZ2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd665f26341dcb964fd9643484b62a58c7e992365e5534254608999fb45428f4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZJDZ2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b24a7bcb8561077d6aece0ad886885ee73a681f045646e5e4b81ca166a3af5. 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/QZJDZ2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365cee11dc95dd30cd9a49e6913ee33f5c87db883fb1f842fa9e8b4896c5b827. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZJDZ2100008.
2020 Best: Gather the Hard Relax as the Forest Changes Your Mood
Nature Sounds Birds In The Forest (Rain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9e68fe6cac2d7f9880c2bb5f1a6f6372535bdbaaed6d2088286be39262b932. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZJDZ2102436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f357e4a334801eec471adbc95ecf466d86c47918e2bac49507c320b775fa29. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZJDZ2102948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf516e4db58a424b58603438215fe4eda6f14a327c8e820ae44fdd84b2c76d28b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZJDZ2102949.
Accelerated Piano and Rain Chimes Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7231a8f80a932189d5964f7b0691689cd26e5e0e1b159fa6121fe003bc697e8. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QZJDZ2103156.
Becalming Ambient Rain: Dreaming Little Baby Vol. 1
Calm Serenade Symphony: Tranquil Brown Noise Relaxation Escapes
Calming Rainfall: Brown Noise for Relaxing Pet Ambience
Meow Meditations: Tranquil Pink Noise for Serene Cats
Relaxing Rain, Natural Sounds for Better Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e882f9ec7ab222984b9dc1713f3e7c8cd7b8679ce527e7df2f9a271aca5be35. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/QZJDZ2000375.