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 0x136f23db3c56e0288fb86816eeffeaaea79479ddc1019985fcb9bb7f27d13479. 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/e68e23b3-7eac-42f2-805f-cc239e956055.json and https://artists.proofprofile.net/proofs/artist/e68e23b3-7eac-42f2-805f-cc239e956055.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 0x8e02a2a0438e93015cf294a7fb3617072bd9bb2ec61ae9bacd2ad9ed0cb6d294. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/IL1042202901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf303403e2345fd03a3b41b2332ac3535323a0787921784607aec9d5f6e880d47. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/IL1042202902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53ec111efea90535e53a280c0b0c52820f6180030dde6de5df9e46809737c59. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:21:45Z), 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/IL1042202903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f64ae83baf0c0580419ab3fa69f715cefe74a23cca3f9a4b77604d24b399d3c. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/IL1042202904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447368f765436ff4781760932711e7e45d60a75ecca149472c9622160e6de5b4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IL1042202905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0a1480c4377bf9af26069c429f4207217da2d50d6e2267ae94ec9e8915702e. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/IL1042202906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75300d89c1a76166508be5ca06536931cbb148020ffae46e9a5fb88bd5bf8891. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/IL1042202907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582e7a852edca636caf75eeac5c9c32b6cf12d5bf5400ceab153b51072b186a8. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/IL1042202908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd3acda1e8e5a1e73c3963223295657bf9bdf2386d82b29a6cd2bd8998e9881. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IL1042202909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ced6cf4630e3610ada640fe5af6350a4c4b84c532de1b5e2577e8acbe9e4ab1. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/IL1042202910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb0ade5eaa98675ba97ca70c91b701c2dcacfa46e1f7ab686c297ed62f717c6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IL1042303421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dfc852f78cac161e83dabd0c8cd95e4601a7437f1438ecedc2bd354a5d3dde. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:02:44Z), 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/IL1042305801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0190a709459db12165b448e777df1f26d9695de54a8f5d0078d478270e04b6b. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/IL1042401091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cdd0b150695f1b8ba82d8029d3128a40c9542e712cb622697dc4a466673499. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IL1042500461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb0ade5eaa98675ba97ca70c91b701c2dcacfa46e1f7ab686c297ed62f717c6. 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/IL1042303421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71dad93a0fd86500d404656665060fcf82086233ed3ceec255ed47cd865f613. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/IL1042503141.
עבודה עברית - מחווה ל-60 שנות יצירה מקורית
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77433b2c673ade93ad66fec3d260f813c9bf1e8fe8513984573f787267d7ef6d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/IL3600801490.