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 0x3c2f493f83ec0daefebee6325e1f01c5c2309a9d8983ab139f8382891bd08642. 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/a568be27-fdda-44b8-ad5e-f0f0a48b5b93.json and https://artists.proofprofile.net/proofs/artist/a568be27-fdda-44b8-ad5e-f0f0a48b5b93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Khachaturian: Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich)
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act III: Adagio of Spartacus and Phrygia
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 0x7df7cfed51608c483a1e43a0b9d98bb23a933b8432209a082cd8d43ec77b8367. 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/DEB261101974.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Introduction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13caf0ee6a953dcbb60d445fb2d93ee19637a39c0fa61159ead6c5d69513a3d4. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEB261101951.
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
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act I: Introduction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae75e2a374d27dafd77981c1fb4b1a3fb202c12a108c7a643d03cd000b6706f. 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/US2TL0921501.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act I: March of the gladiators and the Egyptian dancing girl
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470d79ab2fc80d6ce6ad0d56d5650a2e35f756cc8837f80c565fcb445d83e4d4. 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/US2TL0921502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fcef767c824d0da4817b29392b07ae836d4a475f4b324503fcd097b37c2ba6. 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/US2TL0921524.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act I: Variation of Aegina and Bacchanalia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb90f74fb977f295e228f717b69269013eca38819384cc909f20e4500b28748. 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/US2TL0921507.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act I: Gladiator's death
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed73219f26408471310abac929d83ee5dcdb56ea44b217c0b5832309afdf71e. 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/US2TL0921509.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act II: Arrival of Spartacus and his narrative
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6a618f76da399fa9181371b60b75fb8c383888314f8fe820b37bdc87f3a4b5. 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/US2TL0921513.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act III: Spartacus's path
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c7c245d0298d622fc02dd62a8cc51ff3739429802905db8a60a00ec6ab787a. 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/US2TL0921532.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act II: Parting of Spartacus and Phrygia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cc81e99a4fa6f39613c1037057c4c214c8dbbbd0db47a91d9275cb9fed839b. 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/US2TL0921514.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act III: Death of Spartacus and Requiem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5107f9619933ff8dda2eed38963c1fd8679c65fd0067a19bd474449eb2ff34ec. 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/US2TL0921533.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act II: Introduction and Dance of the nymphs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1306ef93061006bf66e3c6c8a48d62224dcc8a1a645cf509f9099c0e5dd22cf. 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/US2TL0921515.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act II: Aegina's dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00b56154a56ee73f37ae1b2925c4d5fe134e51df77a375ded244d40220c9e19. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/US2TL0921516.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act II: Adagio of Aegina and Crassus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0b5cfae02b95ee843b2932770e554813464cd9176a43bb6d828b35e66d1942. 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/US2TL0921517.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act I: Scene and Dance with Crotala
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ccb2a6f78767ad3b7a3a1012944ef4df57c294742b0c13a179dacb29925ec5. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/US2TL0921505.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act II: Crassus's dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ca00d24b785c85590dad07a6ab966d854dcadab08fd3166c6e6669c2f94a52. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/US2TL0921519.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act II: Dance of the Gaditanae and Victory of Spartacus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6a4bbf987c20ce593b851df361961d4a4e37be1ed8c3892e70b65e0b443e74. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/US2TL0921520.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act I: Phrygia's dance and scene of separation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86e716d158d39856237a7b3551042caa6bc4d2fa04d8fefe8d1a8b776f74e56. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/US2TL0921503.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act II: Spartacus and Crassus fight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cead37f64835cf9e2018a770e864e524b724e00a4cdab0b409ee8aae52427c8. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/US2TL0921521.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act III: Crassus and Aegina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c980d9033a97344dd38ab2fc7ffd8efce8b9544d4ed4d6c3a4eafda8ed00329. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/US2TL0921522.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act I: Dance of a Greek Slaves
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01e603781ba5b34efaee4336bca136f61645d983ae185d0bc7545c134920dc4. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/US2TL0921504.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act III: Bustle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bc1017e3ea77bfcea160cfe84eaf05a361151a02ce3d652b0496bd2ff2510a. 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/US2TL0921523.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act I: Etruscan dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55d10d45c879b9995af17778468ed11a1b61155ea1885b74742415797398e77. 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/US2TL0921506.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act III: Scene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638e81820b330e318d4befc9e3b2a7347856a765ef35d0ecedcb895c8fff804c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/US2TL0921525.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act III: Entry of Spartacus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e879a0c0345028a55a1dab336aec02dbf4d0257fe6259f5dffe1893e82a0105. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/US2TL0921526.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act I: Fight of the blindfold gladiators
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fa74753fb26caefbc424e42d6101a1f24559d6a0ac43eea1df219e9b9bf697. 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/US2TL0921508.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act III: Entry of the Merchants - General dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bfc57df2f097f99da6d6bfb3956575a652126f4ee2fce33a68778f7f331d64. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/US2TL0921527.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act III: Aegina's dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b7c06bd4dca6e6166bd3eeb2e7685b72108f65a575075de09b482cdc83edea. 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/US2TL0921528.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act I: Revolt of the slaves and Phrygia's jubilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58395ad5bff641aedf40334838fcbd1c4993e893ad09d0722e20c78ed52291a4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US2TL0921510.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act III: General dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704dbbb363f9b204aa644bab3e9b8d3fdf5773394951abc5aa13e24b3640a325. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US2TL0921529.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act II: The Via Appia and Dance of the shepherd and shepherdess
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386d28a16b8c8e23424395ca87b869a54fd4a1777672f9654fb12f148df3ed37. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/US2TL0921511.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act III: Entry of Spartacus, quarrel and Harmodius' treachery
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd75451612a49ce5b2b7a46eae2a59b37e23702a7da83779e6f045f790d0d277. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/US2TL0921530.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act II: Slaves' variation and Dance on the shields
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b56c50c970c5d53885b0b4794a255b44ce9105d9c32bafcdd22419eb308971e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/US2TL0921512.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act III: Final battle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161bbf3e2f3a305b5c569a3f82bc1a7ae1be990359be957eb0036ab1b18fabc9. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/US2TL0921531.
Spartacus (1968 Bolshoi version) (arr. Y. Grigorovich): Act II: Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78bb41977bbb261e871edeb830bee40921cafddee12de0d09021de2a5392a3ba. 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/US2TL0921518.