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 0x4f432c7b38974fc07acf4b39fb38bfa0f3bc09117a15cfc4eadef2a66e466d71. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e6c492e-e84c-494d-98b7-18a358ad54d7.json and https://artists.proofprofile.net/proofs/artist/0e6c492e-e84c-494d-98b7-18a358ad54d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musik zum Entspannen - Die schönste Klassik zum Lesen, Lernen oder Studieren
Musik zum Entspannen - Klassik zum Träumen
Vivaldi Variation (Arr. for Piano from Concerto for Strings in G Minor, RV 156 by F. Christl)
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 0xac370ec7ce39b3c42341cb09f18f08883ed5210193113d2e849f5fe077da18ca. 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/DEE861805282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce038c2968c9ef86b9fc4048f59a2cdba557da1e96f54f202b8040ccab634282. 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/DEE861806628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d7fa53918c8952ec86119151ce858d2a25d752759ee1a6cf80e6127d7b2ea6. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/DEE861701312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409cb459b3b55447c9b2740d3884a2df885d1dc95a2e4283b635eb57d0020c1c. 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/DEE861900560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab4b476a2e16c5860b1c9b38ba05ad25da28373be61e33a2fc7c33845d6221e. Chain 2 (Bitcoin): anchored in block 956970 (2026-07-07T00:37:51Z), 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/USSM11609378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982c8ee1ca19596639368b2d140d16204594888825c5f1ebe6cf36a513e1361f. 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/CH0011300329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c734c9ee814f443c5360ea91f9387bbc6b1f29864696b16beb203ca6cd206e7. 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/DEE861803020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61a10b3fe932ba27224585e555307b6a94fdea3fda6c3b95befbe550f28234d. 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/DEE861500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff48302d05c0ea3970ab835582a87cdf4b917973bb89c4f65c44165f3d317c4. 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/GBJPX2300420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfccc4274ecd46ce0db39fdc221cab2cee0540900491581720f0625b94486d8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USQX91801010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e9a2383a87c97bba1ea26b460e7dda3900409c9d1a8d30bfeb3f74f56b8a11. 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/DEE861806342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb00d8971a51d5ea30ad4d9e77ca1573e217c0e8b8808871cb07e389accbaf11. 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/USSM11410623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2218b161d01897544b91dd46aef5954be9a6351677ac6ed23630d1c06b6cf0a. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USSM11708015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1b6d52d798ce63b967bd87536c2a549ae577da3e972a1ecaca2c534d23544c. 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/USQX91702382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585b8663d08e9225f88b2d35e0932030e3c006420e95f62ceac943bb3f134d10. 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/DEE861704534.
Années de Pélegrinage, Prémiere Année: Suisse, S. 160: II. Au lac de Wallenstadt (At Lake Wallenstadt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e45e062074a46cbf6f937f2bddf559ec42e135c5a6bd39993f3ba461e0a75a7. 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/CH0011100330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52e6a09a9d86ee7bf436085e17cabca0c16825a5bf70e38366d063f68c3f45a. 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/USQX91201532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed20c109a9aa8655ec9ab28bb3e7c5d2913b74fee92f44efa2faca2355949d01. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/DEE861701311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12d10fd0c8119238dbd90a6943dec716baeadf634adf1925a0eaee90efe9ece. 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/GBJPX2300421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e85fdf3e8948b0196fdc9b00ad21963cb6d31f777d75215cbda6ba89de499c. 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/USQX91802492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0b68cdabb123056d94725f0b997aec47873a995be873c4006fc2c733623c47. 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/USSM11801982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa9ce4afecbb316a8c5b95cbebb0451365558289942f9f4ed1a55f44591c0c0. 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/CH0011300325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378d392766059dc08a1cee372137cc00219d92a2abbf650ddca4bcaaa6fd5456. 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/USSM19602692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edabaaab73ab75ec2535eb6a3b67926bc4eb18d277b9e3c7514d6a8d411418c. 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/NLF9E1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791d9c9ba0569bad7eaa378949acf579cb23ae1a62a41469329cc3c97c26d9a0. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USQX91401117.
The Carnival of the Animals, R. 125: XIII. The Swan (Arr. for Cello and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c9e51308bea281dd13390adf98e6a99d95f912d87a4d0c8de6bdb35d9e824f. 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/USQX91500824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70dd15ca81395ae2864939be59e790927ff58fcf2b53beec8af6c58c245d0e5. 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/USQX91602571.
5 Stücke im Volkston, Op. 102: II. Langsam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e9f5235fa493e4b61328b275d38c68e14bbcdf7165464b6fab9eba661120bd. 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/DEE861806183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4a6e6571d7d9dfadfb8424d4700ed00098cca2a6d3ad5aac4d5a88d9878891. 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/NLDK71800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52faa442356cb78d0be79ff84d010fc730f309916cea276e04a28e8f554678f2. 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/DEE861101746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1861e5c790fa41446ce6c2631227bc8d074bb144709f84dea5b63ba79c4519. 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/USQX91500811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160283bfeddc9b0608c19e95a4abb860674a93bb176d76cdc9a7f23c8a86afdb. 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/DEE861300917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5b3f4eb18d313cffadf76106fec56109ef6a8a66114f3147f7e5936d7960fe. 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/USSM11708016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79be10ac10fa7f526b34a9ab67f9f015b941a0365c918925f5c28d051b4d0b80. 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/DEE861600666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2b50d5419563a3f53cfbc1fc20d403a90c78100176a327acb78c13237018ea. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USSM11200291.
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 0xd304a26c819a8162ae26112dffbd2efd1f220cc407975c07c657db110203801e. 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/FRX872428202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a7fd81a60882071563cd54d0c8c8f5a122eb1ee98d37b831f9cc910a54a0ee. 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/INR3P2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaffc84b0d9ebd8b3f2d832b9ddefe5c429b9e91c1e6d458275614a3d9d396ba. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/INSN12300240.
Shanti Samsara- World Music For Environmental Consciousness
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba9fbad979e31d346f148677204746deadabdb87ab954c7b264aa8e1f7722da. 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/FR2X42581604.