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 0x836e37ccdeef0921657fb8d09aaab20502e4973382ffcc45322a4062c5d83968. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29d3db1f-96b3-427e-98f7-4ccf171fd633.json and https://artists.proofprofile.net/proofs/artist/29d3db1f-96b3-427e-98f7-4ccf171fd633.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
स्याही के रज: कल्पना की मजेदार दुनिया में खोज
साहित्यिक आनंदभुमि: कल्पना के अनगिनत वातावरण
पुस्तकों का स्वर्ग: एक पुस्तक प्रेमी की रोमांचक यात्रा
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 0x362d0ee6bf2c1b6e7f357c24bed841a08ccc603501e77aa174cab86a0cd54dbe. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZAKB2134353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6131af24a19d8759af5ec5defc0296280a64b0985d01bdd06cf83d3994fcda9. 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/QZAKB2134354.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93acb72cac01717096fb3f25db37f1d428ec7e0b200317ae44675af9e7052cb. 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/QZTV32530318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c71d40e2737b6b34656598debac92bf4e3d0691cd964c8c49fc2a21c1431665. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZTV32530351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83746069b50aa9c7a838ed26eaa4d9f179f3c0b0588920fe8a4e1895e8c56853. 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/QZTV32530368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981bc6c08bde44fd26aeadcd06010e395bdf2a92f51e733f8b5ffa0c33040f72. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZTV32530375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5df43b49c75753e2318b048606458346ce44f6331557ae4c4fdefc25ace4be4. 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/QZTV32530391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496782af867a56ecea7d8126ca749f0bb99f69396bb3429d6ba14d9421137655. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZTV32530399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f7f070caa2b393b8e7a66c4bee4dbdd816eb4ab5b5121ee0352afa406e9733. 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/QZTV32530408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a37e673adeb1635cc6c47a9d39586c0c6470ee8d26d6d0dd29fd6c3d500db0b. 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/QZTV32530447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce3395909a7ce6c22b88169b958018eceed7443da2b8fbc041e7dce3410c9a0. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QZTV32530303.
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 0xd8ef959cf0123bfab9afad5abb6bcdbc8aa7fac325266abc277b4f206946ab5e. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZTV32530326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e56b0d5e788e25f983c7ad2851d69570768131c2f97035fe98acb93efc7c9a6. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZTV32530334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17275cc3158bf57498eef5332bf00754ee5bef51d3395a374108c65c410bb420. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZTV32530361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e43c835eaf0cb1509c78fa55762d46d93be1a05b167fe888d2d594e810fe23. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZTV32530384.