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 0x7e0daac8553f7707642b4ff33944307f53b149b718dc810250411459d16bdc13. 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/cd7287c6-dcbc-455b-9bec-3063e5f6083f.json and https://artists.proofprofile.net/proofs/artist/cd7287c6-dcbc-455b-9bec-3063e5f6083f.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 0x763b3c2a5478a15585dfa7b6c3ba07950046d690cf03df69ce58cfcde93d9673. 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/FR96X1849329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb520ab6a4e32ada6532040851bbfc9c5c6464673e0955563de62b2e8e3a1f4c0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR96X1849330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cd5b8a401f3d0a82574bd8b1507af927c6f1b2596eea261d89fd8e8844f899. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:39:18Z), 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/FR96X1849331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f214080415b224ad3826539fd239b000587e4c16d0647b8a51e422797dd010. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/FR96X1849332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a493052e4ef50cc2e311d29a081f034356cc822d0193df577a5c3fa0e05e2b6. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/FRX282385341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89a8066553c3e9f3551fd62c942e0d33ad0fe15216331b6c914ea9b5fac4ac1. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/FRX282385342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0080a659d749ca1fcb0341caf75644783f0ef6a5512d7240d780b532ac1ee6. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRX282385343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56564a8aa16e6edfed81f99b0ca7872ba93cd6745f935901121eca633c8cc0be. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX282311177.
ร่มฤดีในวันที่ร้อนผ่าว / COOL HEART
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa386d7e8731c86a324ad7450bbc8b7b54cfa31e60dc9e06af8ebfd3855650a3c. 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/FRX282311178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79c4630134050b3a0fc8996e4bd1b51dcc18af25e75969ca3a17050807f94f5. 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/FRX282311179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf877fee4a0ebcf13b6dc51acf52136b48c13c40fe99c92932175ca0dfe6af030. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/FRX282311180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b897fd0c1755bdb12a44c860777a14fae0f59d227dd65f7fc3a6f138ad204d. 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/FRX282399357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6746fab63d4f5eb68627eda976ba35fce5a2e3e13d1cec3ecc2efbc2904b432b. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/FRX282399359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74519a06bd53eb9cc1f2869e25b24ba0fa50ccb9ea456919ff2fbc370694d8b8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FRX282399362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9821c2f77187b1cdc6e49fd06038b48e3ce87f69f7d66d4c69af47468071d319. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/FRX282399363.
วิถีเกษตรของวัยรุ่นไทยสมัยใหม่ในยุคดิจิตอล
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27624f50cfa905131b43e133b7ec180333bd66095c1b00116c8bc11f6d15298. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRX282399364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622a401cef19dc8bd7254deb236116412723da37f254e226503a2813882ce7d3. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:18:26Z), 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/FRX282407984.
ปรัชญาปลากระเบน (มีความสุขเถิดI-SUS)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04423b44449533e6df57d7f9fa649ff65a49010a69f3b1fb6c7a0beecac33c8. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FRX452487378.
บุรุษแห่งราตรีกาล
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4f0c72cd7089edc149a3bddc1552f12ec6edec9a01f184352f853f27136765. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:41:23Z), 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/DGA0S2419066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc29442765da2000ef70c727f0fa73c03ac2405f989a663c59a5618b5ef34c61. 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/DGA0S2419067.
คนข้างเขียงเคียงข้างคุณ!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f4aa70dd570d6e159d273fd3f4aa1d3048e8b82b8b1a8c4ac1e1711fbedebf. 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/DGA0S2419069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ebf1d670b3e35c3c5d76ef5c8037edce3049bf27ae9ece467a190e9187bdf3. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DGA0S2419070.