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 0x50032cca88a534f899ca2f4d1227bf2a5df07921b6328ed05e887bd53c0bbe2a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30a8827a-44e7-40b4-bb87-7e379f1c90a0.json and https://artists.proofprofile.net/proofs/artist/30a8827a-44e7-40b4-bb87-7e379f1c90a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Melodic Playtime: Baby’s Musical Adventures
Inspiration Tunes: Music for Creative Souls
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 0x97c7ec86500097efb6ddbe7f9c0082125e4b9340fc5a6bdbc94c7eff42d83ebf. 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/QZTV32430228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475bc78bc12af6e7ece2148d41617ad7a52b5fceb770359cfc811d3d6766ef24. 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/QZTV32430235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b931a73567c105f916755468117815d0866db820d8a04f7b3271f9e06db596. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTV32430240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ae935c3c81906ab4f32abb82991806a44012801f79e4d023cc86f72c8532c0. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZTV32430257.
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 0x5fb1f0d0f4ffef4dcf9e77eaaefaaca72b56de3cab8cc17059737d6135a18bfc. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QZTV32430277.
Yoga Balance: Peaceful Music for Harmony
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec87bd2e3218921ce66a526f79fe0b644e32a7a33affd6ec81812e05f6673d7e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZTV32488691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a26b19f4b91a5b805adc2875a7c49633b95544f19e1f01773bd642b42e5fd4. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QZTV32488723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a11d03817b3838ab051c3d06f7da63a7155d736d4a98b1a6ab0055331f4a8c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTV32488756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8de6774357e920d4ea0701f28eb3c002316548372d977a1f23423a275d7110. 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/QZTV32488765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89fc22fa9cd96bbe4ad6698da0472a3dd2ae18d3d294c2f043fc7be56269858. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZTV32488697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a0fcaef66976b26eb2f0294c8a49e8317c3de4e01c97b50c1efedcda5e9578. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZTV32488731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a022443d8dd38e9909f6051a2309939c1631f0a000bee320ff53f0397a2ea6. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QZTV32488747.
Soothing Thunder Music for Pet Relaxation
Creek Harmony: Melodies of the Forest Stream
Thunder Harmony: Elemental Forces Melody
Workday Rain: Soothing Sounds for Office Productivity
Study with Ocean Waves: Concentration Sea Rhythms
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf721089f2671a1d8301f9b741d90dece1955e01c98f25b6434798d162336ece. 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/QZZ8A2380845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cd1031c3b4a223975cfa8c605fd86db04946ec887f24dce23fbb73f86b4254. 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/SE5IB1900899.