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 0xc9481dac87f34017bcc01f756894cde26fa952b9f572419a56a69a7b554c5055. 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/3f2c70e2-338a-4d8d-b4d3-c885048ec4f4.json and https://artists.proofprofile.net/proofs/artist/3f2c70e2-338a-4d8d-b4d3-c885048ec4f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O Cessate Di Piagarmi (Arr. Voice & Electric Guitar)
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 0xd2832cf3d291ae73c86a151f792ee3836413758693f1ea9c5dacf264d089c722. 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/NLX1F1800001.
Come All Ye Songsters (Arr. Voice & Electric Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead0583f7886c9bb439c5ad763a07c96d77678649c8e255fb78fbdeda0487f00. 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/NLX1F1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509165edb4373d000d657b7c14e90cb176e067798bd095ca9320fae1d0e71bea. 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/NLX1F1800002.
Oblivion Soave (Arr. Voice & Electric Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab31b1e55d594933834acdb16321c7d555c800c064c625a734b532081596f086. 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/NLX1F1800003.
Vi Ricorda (Arr. Voice & Electric Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58104b0bfafd2148ee2a365197e0c8456a637821535c2f10d4d810e77b3f2d8. 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/NLX1F1800012.
Intorno All'Idol Mio (Arr. Voice & Electric Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cea978be2719db050c13055374c6914eeb0e77e22c0aafee5b727061146751e. 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/NLX1F1800010.
Can She Excuse My Wrongs? (Arr. Voice & Electric Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b71e8f00d4a1db6220f337877e40165ce1c6ef0c8579ea84c08d19c0cf7f4b. 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/NLX1F1800009.
Cold Song (Arr. Voice & Electric Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90dc6f3cd60afe5a5a26fd5ef84126f1c2eff07ed7e39ffbc6eb4436cddc8e3. 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/NLX1F1800005.
Cum Dederit (Arr. Voice & Electric Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca3582f229cc5ab787bba01711f44a67da6172717478f3e4ad080bbc846769a. 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/NLX1F1800011.
Sebben, Crudele (Arr. Voice & Electric Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f760df92e411f2d1caa1cd44632b485a0726d253da840f3e79579ad3f2429c. 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/NLX1F1800007.
Wondrous Machine (Arr. Voice & Electric Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7e3ffbc046d0aedb745a0de372b6dbcbb74cd3bb4f83ae8a31c5cd0393397a. 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/NLX1F1800008.
Hush, No More (Arr. Voice & Electric Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8448bc9369f27257718c0edde9e98cc8cf98c58a67a65c75a206a1173167b257. 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/NLX1F1800006.