Chemistry is the scientific study of the properties and behavior of matter. It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds ma
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 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 0x2e4874e9011d939eba454451479cce49748223d2b126810130f71f8fc9159158. 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/d7ac98f9-a1b9-42fb-b974-58c9b7363c46.json and https://artists.proofprofile.net/proofs/artist/d7ac98f9-a1b9-42fb-b974-58c9b7363c46.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 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 0x82a745d007380c8807044bbc027de97104a996f36ad162cc1b39c8796d404845. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPN100901921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57342960e25f0291f26d585cfc310dcd86ea4cc0e45cbeee091dc1c581d9ee87. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/JPN100901341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be675b3a2b997e329736418bc1a86250f9e954fc4f708b7462bb853f84f74ed. 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/JPN100901381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa774714a3bfd98b27ca90fe8508c84a1ae7e8e2c4d39bb6182d9f9762294e137. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPN101000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a08eb324e9e8a1c5e75c85b65dcc3f4316efd243a301e2693261de54f8612fd. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPN100800961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770810732fff1d6542c8dfc113df8a7b4b153b9194456494d9f9f731c9576c48. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/JPN101000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b4ceae27a0a349d4e5a317956c169b5fe77a9a74bd9d2cba9c315dcbd0bca3. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPN101000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c106c36c2052fb1413b9532d3cd641487daaff85c9f7d4048566298fb2ce7af. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPN101000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6881881a7e583746b88c785a388207d55f708a4a97c84072fad47f6141fdb262. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPN101000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fff93590650707ba49dcc8ec40d77c417c5425bfbd972bac335082422623d5. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/JPN100800962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bac6910b4060f71556b3820f6dd7648da7310f03dcdd79b46e57a41733d1d5. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/JPN101000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecab54637caf4cc8683d98dc2ee79090f684296267f178f9a9c01344ffe4e0c. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/JPN101000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5201a3096825c0e1d27c2777e4932c9d75b818a02a5d315085c6d8f2420d9471. 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/JPB600366002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de6a248218a9d3f5c695752fe5f7a5f3b08d51d5cca4f7a9a16391e56aab62c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB601903128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5201a3096825c0e1d27c2777e4932c9d75b818a02a5d315085c6d8f2420d9471. 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/JPB600366002.
3/6にm-flo loves復活&新曲"tell me tell me" リリース!3名の新lovesは誰か#mfloと#lovesで回答募集!まずは豪華41曲のlovesをチェックしてねアルバム
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5201a3096825c0e1d27c2777e4932c9d75b818a02a5d315085c6d8f2420d9471. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB600366002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd478ed86120b600d221d833c0f9656237a2ec96a75dfcf988e78dc8ebcf9d7c8. 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/JPU901901334.
Astrosexy - remixed by KOJI NAKAMURA from SUPERCAR
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe9e888872e908ba5eee13f12148ad63f50736052c9e1b37a13cbf8d3ad710c. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/JPB600448717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2743709d86e3030c9aa8aa7bbae1395e0e9f80483d57041cabbdbf5d14e2e87. 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/JPU902104043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb565883c008578dbd810fab5d7e2616314b819effd71dee2c12748a9ca4ab2b9. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/JPU902104527.