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 0xd93913bdb1dbfacf1cbf841c99fe6f32453f511392416911530e26280dc851eb. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e6905e1-6f40-4ba2-8d78-12d98c91e4d2.json and https://artists.proofprofile.net/proofs/artist/9e6905e1-6f40-4ba2-8d78-12d98c91e4d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Chillout Cocktail (Selected Lounge Sounds)
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 0x5d8250090730bbd93ab3d924d2f174ac82cc72e4d46508c7dae5b5476b74a8c7. Chain 2 (Bitcoin): anchored in block 957558 (2026-07-11T11:36:38Z), 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/DEH330701978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b09d98dece07a1e319704a357a81ac35ca60cad58618cb049bfd909d99e09fe. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEH330902147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1f0e52029a1fa25ad080eaeef728149fba0119b12519c5695ca7228fa85c84. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/DEH330902199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe7d53bfdad7ce88d837442dcd51d751f2ea8b59e24ba1d1b385148a2b2b9f7. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/DEH330802028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16e7c4563ed93c0a36574a03be4703df31f4f1834bfa75ff9cad768175aa1ac. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/DEH330601755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de16b5724b18a3ab9c2e94407a0c2c428e7d35b4f70a66a36ac955029e970f6. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/DEH330902200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24848c145664b9adfbfe3544e4cd0b3281c024ae79eab7628aca4e6c635d5119. 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/DEH330902198.
the chillout cocktail (selected lounge sounds)
Presents Tropical Acoustic Metal With Ultimate Pirate Shred!
The 'Entropy' Epic Lighting Rig Appreciation Society 'Intelligent Ridiculous-Ness'
Bar Lounge Costes Vol.1 (Lounge and Smooth Jazz Flavors)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666d120ae49d52998a59b9ea9884e0a3a028ec585f8573860e674ec24850cdf5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEH331703328.
Maretimo Sessions: Sunset Del Mar - Pure Sunset Feeling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b09d98dece07a1e319704a357a81ac35ca60cad58618cb049bfd909d99e09fe. 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/DEH330902147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62af3892f603ddff781206bb09d02e1231c8ba59b231ba71edbf89a381cee964. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEH330902163.
Maretimo Sessions - Edition Mykonos - Pure Sunset Feeling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16e7c4563ed93c0a36574a03be4703df31f4f1834bfa75ff9cad768175aa1ac. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEH330601755.
When the Sun Goes Down - Sea Session Mix
Chill Sunset Maretimo Vol. 1 - The Premium Chillout Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69738336cf7233ef8bb76ddc383c44a0e98432b15c65693de27fe7001ae375ca. 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/DEH331703330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664262e1a078e3a077994245fda66f01f31fb7760b05f61961bd9c852286e357. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH331703322.
Ludovico Is Dancing - Lost in a Dream Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c2634c4aed7e02f90a21b287f4935b0b64fdfb618300472db3fcf5590e4dcf. 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/DEH331703325.
Maretimo Chill Radio - Best of Vol. 1 - Positive Summer Vibes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31dfe1a5afe583284450755a2ad696c251bd3e5f510bd6461df9710485e7e526. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEH331903740.
Lounge De Brazil - Lounge & Chill Goodies from Ipanema Beach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da26865640a55356c1a80ac64c3f2a3e0201d6ed63e2cb7ba7d57286e490293. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEH330802024.
The Secret of Blue - The Ocean Swing 2023 Remastered Mix
Maretimo Late Night Grooves, Vol.3 - Cosmopolitan Lounge Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85508783ef69ec3efa56135ee9a647dd0e932cfb84b0e7c9bc2ca4adde84a355. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEH332304099.
Masterpieces, Vol. 2 - The Wonderful World of Lounge Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a37f8d27dd42e0860e447636928eeeb0f4cbc4ece2f7f7e4e6bd3d84468268. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/DEH331703327.