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 0xff4372703216a12202b6449956fd2545906859e241f26c569f65a32b35ef28c2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9683f9ef-46b1-4d58-9f52-06ed8ba4d49b.json and https://artists.proofprofile.net/proofs/artist/9683f9ef-46b1-4d58-9f52-06ed8ba4d49b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Carnival of the Animals, R. 125: The Swan
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 0xf48d7d689337e9385e22e0b7cd1dc44771b9a700ed7067cbdcd9b2f7e8c2fff7. 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/USSM17800662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48d7d689337e9385e22e0b7cd1dc44771b9a700ed7067cbdcd9b2f7e8c2fff7. 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/USSM17800662.
Carnival of the Animals, R. 125: Aquarium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2536cee2ef198058cd636357d5a06f9e10a41c009828fce2544607a7eeed6cac. 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/USSM17800656.
Carnival of the Animals, R. 125: Fossils
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b5e8a871adb8b60591aaf6d5bcbe6b902057e3df3109992d8915510afe4eb3. 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/USSM17800661.
Carnival of the Animals, R. 125: Introduction and Royal March of the Lion
Saint-Saëns: Organ Symphony; Bacchanale; Danse Macabre; Carnaval des Animaux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee3561b0282bb810bc304bfa86408b2794740f041009293871b66bb16f9350c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM17800650.
Carnival of the Animals, R. 125: Hens and Cocks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27be04ab70675c6db4f48db5f5dce14d942e5b0e270b9fa150eca480adaf34b. 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/USSM17800651.
Carnival of the Animals, R. 125: Wild Asses
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b959731629a68701b7f418a56eec1767ef3e2c773c7d12cb4bb9d6075f13e7. 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/USSM17800652.
Carnival of the Animals, R. 125: Tortoises
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad9afa40eb348f99c372ea3ea6dc5f386977726dce3dadb6a6107b4ae3dd207. 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/USSM17800653.
Carnival of the Animals, R. 125: The Elephant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bddfa485c2983772f2e60113add62476ca3435a423faf7aede968d192f96bdc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM17800654.
Carnival of the Animals, R. 125: Kangaroos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1eb4ff2a347f859384a6d2e5b198d20eb58c2ba19b9f6875077cea9fcbc095a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM17800655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2536cee2ef198058cd636357d5a06f9e10a41c009828fce2544607a7eeed6cac. 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/USSM17800656.
Carnival of the Animals, R. 125: Personnages with Long Ears
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8ce7ff11cf0c2e111a130ab54bd760888ccb05a779f75ea6bec5d28292a923. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM17800657.
Carnival of the Animals, R. 125: The Cuckoo in the Heart of the Woods
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c1141ce6dd904dfcfea26e68b382e89d9c16753376e591ca12b1ee62cccd60. 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/USSM17800658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a04520183831042ea7454072378d59ee150dd0f4b0c9cce951632439d77e85f. 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/USSM17800659.
Carnival of the Animals, R. 125: Pianists
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa216d5493ab481f2c6f84d4b6277e165f60e9b55634548b8539bbf073f6c55f3. 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/USSM17800660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b5e8a871adb8b60591aaf6d5bcbe6b902057e3df3109992d8915510afe4eb3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM17800661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48d7d689337e9385e22e0b7cd1dc44771b9a700ed7067cbdcd9b2f7e8c2fff7. 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/USSM17800662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f43d7d41f3e9459e4371f9f12f9789117dbac28fd039d9735fd8e6ad51c4d0. 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/USSM17800663.