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 0x2c955b008621b2180ed30ee2861f76592761f3682a942c1327c0bc4065eebfb6. 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/a4223130-251e-4815-8f7f-2fbb985aeec9.json and https://artists.proofprofile.net/proofs/artist/a4223130-251e-4815-8f7f-2fbb985aeec9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Purple Velvet Lounge & Chill Sensual Covers
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 0xe2b5a4a5bce848f4fccbc479b66c92ebdbe730aa5952dd4955df8534ef4829be. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITR552000266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabfc4419f04d694d9146754f88fb3d620f945b9775462ea706e1ebe38aa8b11. 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/ITR552000267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2def40bf12bc1bbf196391e7a8e0ace6cfd9748c340751fd79651457ff73d957. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITR552000269.
Manny Angeletti Plays the Beatles: Relaxing BGM
Bella Napoli Terrace: Cocktail and Music Landscape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e20ed8a7f82c73601bbfcd45ee7abb4f2fba89aed6b647228529cc691ab2de2. 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/ITR552000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ff74aa3a23e4dfa0536c29967ab1abb552706bbe9dfc71caf8f90c53cc214b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:43:58Z), 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/ITR552000062.
Relaxing Sleep Music With Deep Mind Massage
Night and Day Music for Cocktails Brazilian Popular Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332de94d6c75675f1f2d65deda9d8c08558d8f042d2c3a857020a591570c09e8. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:04:53Z), 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/ITR551900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f2aadb7e7c596c6945bebae1a80ef360bdb16a9f2d7890effe0ce066fec12c. 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/ITR551900056.
Night and Day Sax: a Live Cocktail Coffee Bar Music Selection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059cb2e3935ff3e23d8911e2063ecf83e4b42b10dcb23a81385a155e9efe9b8a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITR551900030.
Bossa do Mar: Brazilian Chill Atmospheres
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42190e5dec11fe115313a1daa190cad5f8698d02cf71300ebee5657d83227c1f. 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/ITG201204615.
Relounged and Regrooved Beatles Songs by Giacomo Bondi (35 Songs Special Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb6225ee1d33eddde00e4fd2e7c9f1e30685b2d41c6cd135f54208aa5352ce0. 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/ITR551415207.
Eleanor Rigby - Apple Pies Acoustic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e9246b55223213ad671125f47b0779b221b41ee28bec29aa349706ab4dc33b. 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/ITR551415212.
Two Piña Coladas - Bossa Nova Tribute to Garth Brooks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903dc7402804328aca78514045361e8cae10ce30abe02004ff63e8643d31d0e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFMG1425071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcd22aeab09c8f83d8e2d106f181db43d6bb9af3c75b1335b6acf6e04bb8423. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMFMG1425072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40d1b6db3bf15fa42dc1882589c8ac4029d023a0edc80ddbe6b5e66e14732f2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFMG1425073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a28123963fa1e5f3cb0a160337fbd879e1d2b75fc95b020aebc5dc437b667f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMFMG1425081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bd8c381ee2d798f4d9ffe11a5517947370f3b044521f7a66d40222567201f6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFMG1425082.
Brazilian Acoustic Guitar (Deluxe Edition)
Meditation Experience 1 - Chillout Lounge
Christmas Jazz Night 2020 (Best X-Mas Jazz Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059cb2e3935ff3e23d8911e2063ecf83e4b42b10dcb23a81385a155e9efe9b8a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITR551900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf530651457492e96e701a4be220bded2c2be720dac921c82c9c0d570575eb6eb. 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/ITR551315133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059cb2e3935ff3e23d8911e2063ecf83e4b42b10dcb23a81385a155e9efe9b8a. 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/ITR551900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b18227f519c0ec06bfa7b20bfba498f2f9bfb877d1ccf73d6e7780928929174. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:53:30Z), 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/ITR551317701.