The Sun is the star located at the centre of the Solar System. It is a massive sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surf
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 0xb23d4e225d46f9ad3fe3cbe3ea630fc0882494186fb85efe16abc85362d5f07c. 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/f1f402f3-b04a-4acf-b518-a7c271c8f07b.json and https://artists.proofprofile.net/proofs/artist/f1f402f3-b04a-4acf-b518-a7c271c8f07b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wanna Make Love (Come Flick My Bic) - Remastered 2012
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 0x78173bcf72111218ab09040366851552b50387ca9cba8e90bb80c2753ff11b2e. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/USCA21201458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40171e8873ae1e17fb798b9d65f969e3b5711a06df2cc3c27f6d7a2db0fdfb63. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USCA29801036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d51fe092e640de59aa004d721a682a11ba1d261bbfeee466885ccfbed1aca6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCA27600178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056545aae49dd83f8029664ec2bbc4b1f0f4991d44282fe5005d4cacc79759d5. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:18:26Z), 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/USCA27600179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965b7395e2d12c726286308718fdccf1e6d0f9d9c652c1a72a36d93665826c53. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:45:24Z), 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/USCA27700189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf52411194959b4faaa81420411f7a2c3ad617d8d95919482e4f1cc16cc3b69. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:02:40Z), 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/USCA29801044.
Reaction Satisfaction (Jam Ya'll: Funk It Up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34565de2b08121e0916f97a9b6759106db6b7e1808b0fbcf44c468f49be8f6e. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:59:12Z), 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/USCA29801035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a612ef3c151839eb8b95cc66edd04af6d19c9daca62f588b69fac38c5b315e. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/USCA29801037.
Round And Round (feat. Slim Thug & Brute Force)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da9f4435d80e3c6ac3fffcb69b020e621a571828f98f42dbd1c8fd5798c34db. 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/GBSMU4196082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8c3de91bbf51450ed709e78c252d6518c96a37973d776af5b43940efc7b264. 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/USAT20201103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec3396965f7101dc522f1f518f854fdce91a51f6ca9d7d1a53c0a1ce1171990. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USGGT0612384.
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