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 0xdd7e4cf95c84db2f47ef9cd378409e32cde705bfae64c0f9419e6194624c119f. 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/6399ff07-0fd8-40a8-b266-0e5272b45e64.json and https://artists.proofprofile.net/proofs/artist/6399ff07-0fd8-40a8-b266-0e5272b45e64.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece077ed2926f1772b9b866d02cc4dc239149064f8693e1069a6d9e98d0668e1. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/SE5IB1600709.
Brown Noise and White Noise Sleep Baby Sounds [Loopable, No Fade Sleep Noise for Babies]
BBVB – Pack of Best Calming Noise form Noise Waver (Loopable)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfaf14260dddb506823695952a59ec56337be693fe5bac5d80e3b4d4303c74a. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZ9CY1706771.
BBVB – Sleepy Brown Noise for Children Loopable Pack
Stay Calm and Feel the Pleasure of Brownian Sounds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca014870bc666a137f7533f1e430db88beef490feadfa977988b6a27c48de0d. 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/SE5IB1600710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f459da10388dd1cab93412e773b802c38880041d238d08c12c65b01a8ba243. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE5IB2100751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b50140a7bd023a60e41454d460b2111e95cd3b3b7caa565c1033228e46d34c. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/SE5IB2100752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb08daf5207307e967d2e3f09f46e157a2bba65224f7246878e4a49299078d3. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/SE5IB2101789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ad49a04f19ae36f38ffb61e0db7a1e28ddeb01ac631eb7f5b49622051121ad. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/SE5IB2101791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb119294a27ba8459dfe16ab70fddff4ea243b009978beab0fa91beb6f2ddc0. 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/SE5IB2308261.