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 0x671a7db32e266bb5168cd5aca8d772561efdced8dd2b4eb2a063a8beca6486b1. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34a5173f-06a9-407b-ab4a-39f438399a0d.json and https://artists.proofprofile.net/proofs/artist/34a5173f-06a9-407b-ab4a-39f438399a0d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1923 - Exile of Erin (arr. for chamber ensemble)
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 0x32ff8f02c8df98e7c6ed3e55a859ebdf1af5023ca8977bd65b8289bc9d7838f1. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/USKC61215302.
Klovsjo Brudmarsch - Polska (arr. K.E. Nygard) - Slangpolska
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07efb67e5e4f9ef976e8633862c7cade4388f01a208d1bc894b83537ce1e467d. 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/USKC61215304.
Full Rigged Ship - Cluck Old Hen - Southern Harmony: What Wondrous Love Is This? (arr. for chamber ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d55dddedd680f33c89793f9a6df2a44dc8a4340b8c0cce39273ea75c1fa4430. 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/USKC61215305.
No Longer Mourn for Me (arr. for chamber ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15968e41f9b274c988f990c03640463aa8cecff43a456775f59895a8a5002fa. 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/USKC61215308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70b2e06369f649af93ff530e39f1fe423274edc793fa7295bdab5fd989e69ae. 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/USKC61215309.
Ground upon a Scotch Humour (arr. for chamber ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30f65a315e3088f3eead8dbd6972cea27249bfd43beb290c1d6b3eb69740671. 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/USKC61215310.
Come, Gentle Night: Music of Shakespeare's World
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d07969882f5a6c8674d51d007184c42d286fe41a646c0a36263cdc5e3e9cff8. 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/USTE10402556.
Jack's Health - Vale of Years - Jack's Health Reel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f93adc774d5fd9e45b1717b1e076fb76d7e47dda26495bfc988f5b627d89ac6. 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/USTE10404556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeeb44a33a63910468b58040c82a8004f62f1a9afdeaf1a47d7fb354f57580c7. 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/USTE10405556.
Departe, Departe - The Cobbler's Hornpipe - The Fairy Queen, Z. 629: Third Act Tune
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d11228b2db1fda8a06c051a2f40440d27c45aa9d38fe9475db898e2c7ff3b70. 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/USTE10406556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc63454ed931d0cd84f59f488cff3c76c714d146a0e41791fcf9b088a3bbd35. 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/USTE10408556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf28533af5e123f2b9a1c6711b7077f43da0b11e11fa0e2b782912d827de526. 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/USKC61519401.
Sitting in the Stern - Whistle O'er the Lave't - Lord Balgonie's Favorite - Marry Me Now - The Very Last Straw
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e4dde73adb08713f1901612dd38229fc62184c23e0b2e301bd568d29bd9f29. 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/USKC61519403.
An Bonnan Bui - The Collier's Reel - Last Night's Fun
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d33500b4ed2dcb477a65365b0c81f3c43bff1778d0a1d542c82bb0213f42c0. 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/USKC61519404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e30570690ef3d8cb6f63cd91b2cb7c22d5804e043d25794bf3d8ffac5479e7a. 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/USKC61519405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295321bb33ec3eeb04b9ebd9661ce8b4f16652126fd22c3c92eacd3347d47488. 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/USKC61519406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e03c19128d094e27ddfb0f8099e6ef192f1b4c257b7dc42abdbc5b55b9af18a. 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/USKC61519409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d616f09ad0677fbb1f7034d17d4335155528f31028cdf7cb971cd38d3302b84. 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/USKC61519410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bd4282a008e0d2813fbc8be837e0095b015d8a9829b83cc86a9fd8ec210606. 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/USKC61519412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f57bafd1c4ef449addaa505cdfee975e1d24b93907fe5576f2efb6d6d53995. 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/USKC61519413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeeb44a33a63910468b58040c82a8004f62f1a9afdeaf1a47d7fb354f57580c7. 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/USTE10405556.
The Well-Tempered Clavier, Book 1: Prelude No. 1 in C Major, BWV 846
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546b4d182a9347f2e91410a14494597772fb5964e32614fd497ef3f699c5ec39. 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/USTE10305391.
Rêverie, L. 68 (Transcr. Y. Kondonassis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a68d90310ad6e4454ce30591386f09bc89c5b2a2a9380eca2fe0dffe30b3ab8. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USTE10302533.
Otello, Act IV: Ave Maria, piena di grazia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e737c6b97e44fa6e6298a988520c758b0c8383766ef967f391163e05b2c2ff. 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/USTE10701709.
Madama Butterfly, SC 74, Act II: Humming Chorus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9872c0b999cf9e18442b1ca35befef732d3a3e99f25ac415de4c72613ef4ed4c. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/USTE10411260.
Let All Mortal Flesh Keep Silence - Konvulsionslaten - The Celt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f62ca04a0120049b5a66498e569b019b509c9eb211612e52aed918ff09420e0. 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/USKC61317301.
Divinum Mysterium - Taladh ar Slanaigheir (Christ Child Lullabye)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea05733bdac5466c8c705cf5c23211a85ed26786052ca0a559bc9293fcb38cc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USKC61317302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110647f46026e7d2c8d09110c84476944bd004bcc41e6026691371788a478f2c. 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/USKC61317305.
Fantasia on Greensleeves (arr. for chamber ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6215ef623bc1a7e57565ef9acf76adacedf61ada4338a4c861823773b9a80eae. 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/USKC61317306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a9904d3bf57b2f6af07564fe3c97f87ad0f2bd084ac3069b31f1e4c26fd88d. 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/USKC61317311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac62fccfa5d2a5ae85719d72bd2192ccc98e7bb39a7da28aa2977cb4e55a46c. 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/USKC61317312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55582c727af3109614c1c22ceec5fa55c7ca3b729b6217bf6d330a87481213c. 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/USKC61317313.
Silent Night (Stille Nacht) (arr. for chamber ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b349a7781eef7d4342b09e4f72f63b21d9dfa1069eaf30247fa7b76034e201. 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/USKC61317316.
Scollay's Reel - King of the Fairies - Old Grey Cat - The Dance Goes On
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9107a5c8519ef4591f369920c3e790f7254f42337d8e87bced7b500c1f3a1e. 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/USTE10402536.
The Mystic and the Muse (Celebrating 600 Years Of Women in Music)