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 0xa969d45a1bddd7ca53e10f2a2acb8da701d057639b81ea62b6d8bf520979635b. 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/9bdefbbe-f924-421e-8d2c-f74c0d17bb43.json and https://artists.proofprofile.net/proofs/artist/9bdefbbe-f924-421e-8d2c-f74c0d17bb43.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 0x663e74e510492c3e4dcd3506eb370a959a9c0f54f0fe4cbae51f94f45993b498. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:24:21Z), 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/IL1000001754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de429b6a711b1c5a14fc8caf307f84567dde5e49a6c1de3c0d7b5ccb479b63d. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:31:06Z), 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/IL1001086329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac41f961c59ddfb3156a5be48bad157ed7e94ec337a5fb53e8cb9e796674eff5. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:51:28Z), 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/IL1000001735.
בשירי ההצגה הכי תמימה בעיר, הלילה הראשון
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac41f961c59ddfb3156a5be48bad157ed7e94ec337a5fb53e8cb9e796674eff5. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/IL1000001735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070b91a5a34cb0d63dba10fc1974e5dfb6e5af3472f040ad82072427ec46614b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/IL1010103635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d949ba0ba19301c1bf89624babdf5af8cbf03e0abd3e745540b2df26ab08e89. 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/IL1010004156.
ארבע אחרי הצהריים ב': מיטב השירים מתכנית הרדיו
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070b91a5a34cb0d63dba10fc1974e5dfb6e5af3472f040ad82072427ec46614b. 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/IL1010103635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25787d9ee716431f2c04d41015509654266b9d59d69e534a826572464cf51e52. 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/FRX201905475.
אהוד מנור: ימי בנימינה - 62 משיריו היפים
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202f48d312c62f6d83b76c54c6fd033f1f9dcafd568ed01be868438cc5b55343. 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/IL1011098784.