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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44297602a5fbd5c3bdfe72cd5556e29b212fb451bcd381ce8efbbfc91b5b938f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd85dda4-6d61-465c-9111-984d52a50273.json and https://artists.proofprofile.net/proofs/artist/bd85dda4-6d61-465c-9111-984d52a50273.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Omicidio per vocazione (Official motion picture soundtrack)
Italiani! é severamente proibito servirsi della toilette durante le fermate (Original Motion Picture Soundtrack))
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f64ea6ab9dab495de0fb45b6d0e25b19abd0d74e5cf2b526933bc51384e714d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ITV7V1702716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb396ee00db17de0a990996abc19d0d8433304873b46f21b261528e42fba80e68. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ITB267512910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458ffcd3ea15b2a7e021f453cd18f53e434ca5f353e0b193692a473652ac4752. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ITB267512930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e582d175865682390ed3efd05d97edad20155c399b79e152aef53068f3f24de. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ITB267512970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d957a6fb5df117a45b084f9cf3fe53de409a54773dd608843bb3d0cbe2954e3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITB267512980.
Collaborazioni Torossi & Friends - Antologia di Atmosfere
Great Images (Nature Documentary Electronica)
Colorful Italy (Italian, Easy Listening, Travel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c766db958e0433f8447d80db2dfabbecabf28b89dad49e423f2f0add7b63dbf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/IT7151378503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf89056c6414d3159bc6f799c33a6ae3c12e02e2339ebbf21d6ad2f01335c69. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/IT7151378513.
Indian Pictures (World Music, Ethnic, Travel)
Situations for Sax (Smooth Jazz, Easy Listening, 1980s)
Film Characters (Cinematic, Electronic, Easy Listening)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fb5d4403b3d5cb0c8e07a9374d822b99b4a45e48980d1c23984d48c7f8d016. 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/IT7151391083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da022a300fd7cc1155377c2d6244b300454091656a8399ee3bf728c736eea53. 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/IT7151394014.