thumb|300px|"Secret Society Buildings at Yale College" by Alice Donlevy . Pictured are: Psi Upsilon (Beta chapter), 120 High Street. Left center: Skull and Bones (Russell Trust Association), 64 High S
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 0x72718a753bcdf835b940763376d2d6f1598c302d615f0e53a78700c59b30417f. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f25e147-007b-4e0f-97e5-c775acb28ac8.json and https://artists.proofprofile.net/proofs/artist/0f25e147-007b-4e0f-97e5-c775acb28ac8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Law Of Attraction - How To Attract Success, Money, And Friends
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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 0x2bfedacf68afff2dbf1136f8167dc7b4fecc075c8b71c6e6921365b0137823f3. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/TCAEY2082074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf112c83fe0317e606a886f22f62bd5fbc313639d6c6b21b511160a2d5ecad4b5. 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/GBENT0110390.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb51ab468f2ad1bdd2a2e4f744eb625eae66f0e73f7cecafc333347a889c1fcc. 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/USGZ20605231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f92c486910f4ad17faba9d5d84270cf2715c2daf57c1b7624e0b4c8b863d25. 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/USGZ20600952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268f619a8217cbc61dfc611608259eb087bc10176b11fef14ee2eb78d9207558. 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/USGZ20605232.
Freestyle: 4 Hit Artists - 16 Hit Songs Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f92c486910f4ad17faba9d5d84270cf2715c2daf57c1b7624e0b4c8b863d25. 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/USGZ20600952.