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 0xeaa817a014b6ca32a557c591d4d9c9e778a0b94fe706dec475d04b12aa70131c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/710e7fe1-c89e-4902-8de5-0237e480ef0a.json and https://artists.proofprofile.net/proofs/artist/710e7fe1-c89e-4902-8de5-0237e480ef0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Carnival of the Animals: XIII. Le Cygne (the Swan) [arr. For trombone and piano]
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 0xfa788e4bce75826c5af47628c95d92bbfb90a4810bc2e8f99fb9c254fc5a3477. 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/SEAEI9608030.
Limelight, Main Theme. Eternally, "Limelight: The Terry Theme"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af082269e0b1a82924f0427a0d76efa2ff55addc794ed4d19fe4d9f84d42314. 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/SEAEI9608040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93059645f6620ed1a31edc320f8482f6487babc6c7103ca153b81e437fc91b58. 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/SEAEI9608050.
Schwanengesang, D. 957: No. 4, Standchen (arr. For trombone and piano) [Leise flehen meine Lieder]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f586cd76d3e99a51ae738feee1279dc089f0f43408a5c04c4181dbb3e89ea3. 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/SEAEI9608060.
6 Gesänge, Op. 34: Auf Flugeln des Gesänges, Op. 34 No. 2 (Arr. For trombone and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba5cd5f31359362972d7f97db3bcf723f3d726098e81c65c0e51edda2d78d76. 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/SEAEI9608070.
3 Songs, Op. 7, No. 1. Après un rêve: 3 Songs, Op. 7: No. 1, Après un rêve (Arr. For trombone and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a967a132dea8eaf11cc89922a78138739b6adca22d1355b5e280fef13435563. 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/SEAEI9608090.
6 Romances, Op. 6: Lied der Mignon: Nur wer die Sehnsucht kennt, Op. 6 No. 6 (Arr. For trombone and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73859dd43e681d2018d1d34cb0f831babf9d53862898b268ec7d39bfa78205c. 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/SEAEI9608120.
Cello Sonata, Op. 19: Adagio (Arr. For trombone and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711134de17044e2d2d59229df7f79d3b4e263071b83a6f4df72f08d8db41f8b8. 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/SEAEI9608140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38e63073a9ac1ff1f43ca49dd0ba1236b005220a7208f3c0a2c9267b31dcb85. 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/SEAEI9608150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9ac71a932b82287bf735b673acebce8d0e4c6b8abb90f9cf9bfb98b1f6f8c2. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/SEAEI9608170.
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
Thais, Act II: Meditation (Arr. For trombone and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e64ffa4dd1804e737b1bde0317b12cb75e002a58c3b003a44f94f6d7657ea5. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SEAEI9608010.
La plus que lente (Arr. For tormbone and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52006b7ca1de37836e85c4f495b4ac5ad0cef0ccaccb0b0a9b1d18dd3fb765ee. 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/SEAEI9608020.
Salut d'amore, Op. 12 (Arr. For trombone and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52caaea76975ed59ee22d128c1f5c44e27f037d571131e88548bfe6179fe6c6e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/SEAEI9608100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaad5c5ce54e139bc0405869c17b5de9eac8b5ea4b45c6793ae873470c7eb956. 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/SEAEI9608110.
14 Songs, Op. 34, No. 14. Vocalise in E Minor: Vocalise, Op. 34, No. 14
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46470b42470ee40c52009a3a36acdac01313d905d429ac166d93dcef6bc04ee8. 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/SEAEI9608160.