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 0xc8b250aa81b473d4615d5dfde6bb383aef0565a83a186aac10f126c40bf1ef2d. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a73522a-772c-4ca2-9c33-d7982d10459d.json and https://artists.proofprofile.net/proofs/artist/0a73522a-772c-4ca2-9c33-d7982d10459d.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 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 0x70a769daa90fb1ecabc3c35c45ba124ced2672ea7fd4f849b1164cca78af1ded. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/IL7192401738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc18f436cceb8bb4d0e5a2d4468adf62832afcecc00ab27ac263fc49c1f23758. 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/IL7112103955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a3957b76ba6e575c3fa1bff35586fabaca178674bc951f713e4bdcf88ffae3. 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/FRX872360726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47efaf80c58a731c223ecb1f82681cc095263f4cc0a714f9551859fddddb0f4d. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/IL7192300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629533d382f44538701bda166d8805830f29e2aab1301d6cb19661caeee76158. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/IL7112104208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ba7120e1b2afb5d90f6d1228f729d8415fc6bceeef66cd416a2771ac17afc3. 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/FR96X2424718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d798e970321933604fc34538bdf6cf59a751dcca661ffe079cd648df57f945b. 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/IL7192401739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58335ee1d13c17c28494b9a0b571bdc9d6ed9f8efb137f278ebeca8ba6f4b55. 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/IL7192301496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70e68c841d5230539284095fe8a970866efd67c4911f7a2a4eaacafb38fa5c2. 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/IL7192401740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ba7120e1b2afb5d90f6d1228f729d8415fc6bceeef66cd416a2771ac17afc3. 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/FR96X2424718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c9e1d514ba9794ac8182e2775b22a15f5a1adb14783c1606ac4c21021a1ca8. 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/IL7192301912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58335ee1d13c17c28494b9a0b571bdc9d6ed9f8efb137f278ebeca8ba6f4b55. 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/IL7192301496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a3957b76ba6e575c3fa1bff35586fabaca178674bc951f713e4bdcf88ffae3. 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/FRX872360726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47efaf80c58a731c223ecb1f82681cc095263f4cc0a714f9551859fddddb0f4d. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/IL7192300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ba3649db62c0ff6f2de34929e82ceae4afb56e32bc989bb7250e7efdff030e. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/IL7112104431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629533d382f44538701bda166d8805830f29e2aab1301d6cb19661caeee76158. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/IL7112104208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc18f436cceb8bb4d0e5a2d4468adf62832afcecc00ab27ac263fc49c1f23758. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IL7112103955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70e68c841d5230539284095fe8a970866efd67c4911f7a2a4eaacafb38fa5c2. 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/IL7192401740.
אחרי החגים יתייקר הכול (מתוך התוכנית 'שניים עד ארבע')
אחרי החגים יתייקר הכול - מתוך התוכנית 'שניים עד ארבע'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0826fa01f898190e29fdfcaa42ea569acf30d5f43f2e37219e3a40d15dbc03. 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/QZWDW2483090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397041a6437705cc1bb3e78250db4955f6c8b95644eac7fe34a6b866bd6509fb. 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/IL7192402228.