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 0x377219d36dced1d4b39ae425bc734cbc3542b192902923f7567bfa67d792d508. 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/ed6a97eb-5e28-4c26-84b4-c7a06ba4faff.json and https://artists.proofprofile.net/proofs/artist/ed6a97eb-5e28-4c26-84b4-c7a06ba4faff.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 0x1e16df1c6ec24ea263ed69e9a08aab8dc417516ac8f10c8e3871bfa2e93db9a7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/EGA252206853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e83835e543be6a67182ae1bec47abbb5961307bb78f4808cc735f1456e398a8. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:15:59Z), 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/EGA252207643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237c909f2f57af54290c38f30c014a0703545d99335591efd9029f66f002bda4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/EGA252303393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afda8cba3b6d52102b404579a5dfe04713321e5b6a086ad849f4b0aa9f40b1c. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/EGA252309122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c5ba138a19f7655a6a25624d076b302523dad8364dc9d1aad57dd88ff12699. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/EGA252309123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4025b9afde8cffda935cd94fd36cfbcf71695ab4c676a8c4585821330dfb0f. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:33:17Z), 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/EGA252309124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e36379ce8f9aa0c24dd8d40de96aa4241842095e0b24e7ec933e4926bdb6d62. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/EGA252309125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca596ce9d670fd051234aa945b66f949294e939ea1d565350af607598ceda85. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/EGA252309126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0311dc1a61ceae5a5e85f0758e565f18b7bc21eb2e75422454d54abf1ae0d4. 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/EGA252407563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ab024d9ca55dd83b4213c8818008d0f046d0ceff119bd7159c5de7fffb36f1. 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/EGA252407565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffd6a1cf76999d3f408d9bc497d974e42100d62ae4d6c91e2a7b226fcfd84d0. 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/EGA252407564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1c65f678612b6331c28a842d8ec8990c9ff3fbc77ea4fc50fc2fe5119be335. 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/EGA252408035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22f6b3588979e1a274960eb1534862c9e7d4ed5b5ea11184bbff66740f52b6b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/EGA252408036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4e0a8f82da3fca42db0e55df00d394cd387522abf0fc849145e8523b086c1b. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:11:11Z), 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/EGA252408034.
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 0xe31f047019e6caa79dd1687ebfb0a95883a6810afabf5bf8cd793d81b20eacef. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:59:07Z), 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/EGA252414461.
سواد على الكل (تتر نهاية مسلسل العتاولة 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7253fa43f59ef2b5a7e6ab91f48c57b6a7ee23c7ee3b4fd945481ac6f126b4c. 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/EGA252514209.