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 0x75380e7f07ec6238134b068b81846be529a67b06ceba2f30093b8047f7fe1988. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73b74c15-2937-41a4-ab4b-ed328f19b58b.json and https://artists.proofprofile.net/proofs/artist/73b74c15-2937-41a4-ab4b-ed328f19b58b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Metin Altıok Şiirlerinden Şarkılar (Ankâ)
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 0x930a2aa25b2e8be1edf3ad0b0c1996405dc262546c8aa53ed0f7ad8a1741d470. 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/TR1591402408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6c5dcb9ecf0f482e06d41a7cd0ef8a5d852a0bb9a942148bb0ba9885ca4acc. 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/TR1591402414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8aecf33fe9d1079cd1d7607de50a911f184244df2360afe67c62026f7d3b28. 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/TR0310600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214eb7e09af602dd2b3517ea840f7fbc1b1df0103f5eb397bbee3901e470848a. 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/TR1591402410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ebc07028a1cb9f2a9d7fafca25081cdadb96441e50787d8c75553ee22dfaab. 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/TR1591402409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f97d252107216be03619ddbd096b40eb1a8ce85fd9480b35a9216b9e88ac4e. 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/TR1591402423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b14a47d9cbf77fcfb921b90cc43fd1b8f294f3111e6cbc365db042175b9ff23. 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/TR1591402419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9ed5b5988e01862873c581d7dc09cf54e051b5974bd7dd323da7d27c9e9c3f. 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/TR1591402418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6286840166fe449c250b489c2f46fc1ef3455a651272848dbe1506ea926ffef. 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/TR1591402424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f167179c205b5befcc3e4e24543d2c0a6fb55c4e1beffd22fedd92c8dbb7fa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TR1591402422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80ff7191db339944b74aa297fb8c22e62de310df90f49215469004821bf972f. 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/TR8371100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0635a1a84524cec16cc293ea0f5041b03226e0396bca6fc7cff31b9c049154f1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TR1591402428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c725bb34ac865516cf0c18a2ebf68fcb41cce064de6ee9b3d7a9782277bcb5e. 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/TR1591402421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8bafc7493366d2854c97af1733ccd066213ea742994fe85272b4fc36080c31. 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/TR1591402430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5cc54b31a5d2c2ae238275716011f361b1bff68274e1cd4493264e9172be1c. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/TR1591402415.
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 0x1908f4935e17bc47cab3f524b4f538ad6e69cbd2edbb728340ca47f2de8fe445. 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/TRADO1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cd67448c55b0815b04320e033adb7723aaed8795f6a6671b9a10d3855bba46. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/TRADO1300004.
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