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 0x5805afb0de653db714384a87cecc8e5c215c4778fa91088934cd4cc93baed785. 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/b3b4fed0-96c5-4d85-92e5-1cc610efe01c.json and https://artists.proofprofile.net/proofs/artist/b3b4fed0-96c5-4d85-92e5-1cc610efe01c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xd38f34cda0542ae267311e9927f56eeb0da5927de71918ac43f4f60f154d38c5. 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/IL4721000157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e3b3030b6487ca0f31966263d030918bf0c3c2e4e6a4c45dc6b645a6ab5a74. 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/IL4721000178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f1c7b6b5e41f5fb73194976ae63622d42d0fa71cbbeaadee766928709e93c5. 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/IL4721000159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a153b448569a3fcf11baac3d3abf61c1271dc5402ebbfdb8238bad0a2de453. 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/IL4721000860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded9c3fbc8abac667b0568b320183c2eb812645f319cef9e317692e8cf76f279. 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/IL4432001556.
מחרוזת חביב יא עיני / אתה עושה לי טוב / מואט (מתוך המופע ט"ו באב עושים אהבה / קיסריה 2023)
כמה אהבנו / לומדת ללכת (מתוך המופע ט"ו באב עושים אהבה / קיסריה 2023)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec7828e540504bcdb3da6b62fcb04435dde73abcc1546a5af1f7a57faadc890. 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/IL7192302475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6efef823064d9cfc4b611f269e69a53eec062adc2764342764e958d13fe81dc. 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/DGA0H2435625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48eaa409145674eaeb7c993dafa96032d5aa1d4ea64b5016c157529a787332e. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/IL7192500587.
מחרוזת כמו פרפר, נשיקה, תפוס, חלום מתוק (מתוך מופע ליאור נרקיס קיסריה 2025)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169255ce4b944f6b6ff69ed52e0c06774ff3a64ad3c61a70ec8dd5947483a298. 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/IL1011122761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17654966f29a8de2166df11b9e38c82691d757f40b7d79d7f97f2c7b0f12519. 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/FRX282133898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5d501a62777c3d822af02475d36be00d3816c52c17b43d1aa4e94b0fe966cd. 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/IL1012301864.