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 0x91aa0cf5de89132a4f2199f9e2ad9d3c6d275e288045d920976dc78f706bf037. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df46e8c8-b6e1-47b3-a567-5456f16d6adf.json and https://artists.proofprofile.net/proofs/artist/df46e8c8-b6e1-47b3-a567-5456f16d6adf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ambient & Chillout to Get Back in Town (Relaxing and Chillin' Sounds to Get Back to Work)
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 0xd1e1173093cf470ca1522cfd1b017e532678542b9d59f32856734ab58922c358. 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/FR6V81868553.
Relax With Nature Sounds (The Most Beautiful Collection for a Sweet Baby Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70be1e5811134d1713bde0bf4780ecffdeae0b6238d8d00f86f99669792f2732. 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/FR6V81673328.
Spiritually Sounding Nature in Meditation
Save the Nature Planet Garden: Sky (Music for the Planet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3ac3425eb6eae8c8f3be62892060f701f2d427815e507c52a35b4f2411f24d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA370364324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911da29a83a01cc1c51c5ecd573113b36e8500367c42dc87be5b6fe92898f7bf. 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/USA370364325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbbfb7f1c1260adfa5c02ac53005d9f4bfbf52ffd84739b89906be55adafcbb. 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/USA370364327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ef3c2f1682a7b1c7462c733602d393f2e93aed1874cdbacbcc72f04cf86c7f. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:06:25Z), 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/USA370364322.
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 0xa76687092a4d70e34094123e950124788116682036144c1ef94f2a82f0244cdd. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/USA370364321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac26a88a12dd4e3e89d8c62be80c622649ec465bb71675462cf21aaa44c4e9c5. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/USA370364323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341a5a1dcdec0cd5d6aba2f8779ec21305315556f7ec67f3f81df3bd3cdbd54f. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/USA370364326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5943864339df12e970ae5132d52e0330d81a5e0065c6a13099b2a37928563fc9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA370364328.
100 Hits Sound of Nature (Relaxing Music)