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 0x060e55aaa7e33663cfbd09e29c38a81d4f16936c7eaf7739b9d4301ff9c5fe6d. 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/3707e143-2bc7-422b-b3f8-60861f61638e.json and https://artists.proofprofile.net/proofs/artist/3707e143-2bc7-422b-b3f8-60861f61638e.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 0x3b1434fcb46af1a8eeec3bdebff65b5ca2cab909c1fca89baf956d2f95634426. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/THMOB1906861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4931f025ed0539da0505f027d0a109eea2f234a1e99212fb24edb2d9d700654e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/FRX201937025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb9fcd860d366299bfdfaf264676337c6720382b9054ac49311fb5db51d6450. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR96X2005039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c71bcc40861dac5a951905a86ef17ce3f65393bea11a4ccd98baf81b799164. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/FR96X2035945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83e76fd6119886946814984563295fbc7b1d818447ed7a28abd302ef8743f00. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DGA052052403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a211cd4624d7a361f45506522b09a0ee11719c07c824bba4df7e19d8c1bf57. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA062046569.
Flower and Wine (Photosynthesis Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d92b3a02b1c62fc09ecc8dd4f5a81b4daf3f45380c19f4a5a568f72a42fb732. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FRX282121465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8ecae494d949f9d79d64d54632413d0878bbe7bd8d35ca8ee9629f594c2655. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/FRX452181345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1c8cd77267709b35de8c9fd8a2d27882f9183f3d5ce19adc05d7f39c44db20. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FRX872154938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0999d1f4486b537df2c2a20361a4fa24651aef704244fedf3aa02266aa0b0b00. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FR10S2234946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41509e884e39a4068a47f839f82a83285b9dc02de60670553eff92ce2c1113cb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR10S2234947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211cc6985ed73b54fc524521486f3768f5c534582896b8e1896525a83e751bf6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR10S2294368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557dde274b98b072fcb8292b28d82bb0618afeb850a31258ca45b7844c4edac2. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/FR10S2294369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96cea28699ef85d16654d06120ce3e904a2d41ae496811c831794a62affd3ef. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/FR10S2294370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c29e89a0e1b3dfe05228c83303a12bce77fd66a470b285c09bdcab1bb68c93. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR10S2294371.
We (Always) Lose Something To Get Something
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacebf1e6d6549cb463b40124ff7c90fb6344b0431198bbf21638b206838f24a. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/FR59R2266965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecede9e00cbae1fd16a5b30a321ddc60215fa49e37c2eb519897c89d485797e. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/FR10S2432864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877b8fd0b824a7fa3a221e1bfbeb4c4b420f262baeed293afca75aeb046b3105. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DGA062330470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2d448171c329368b56dc9840306f111216e577cf4ccc5ffe567bbd8cc62bbf. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DGA0P2330007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fdbe2e113a32b30fc2daad5cd88ef259b53df71aefb7a5ad234fd5e43486ff8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DGA052344696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49ce2844dd2918e946e23a484ceca93407ab8b010a6a1ae2bb4e4817bd153a0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX282417145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad18d2408ed61183271d5190d062aaad22c82aa81e8351da2b72576581dbe2f. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/DGA0M2411655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea77a7d3f3bc67b66bfaf01a5b04b149b193a0f20b91b6764f3b88dee87ddd8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA0H2490056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc669c366e424090d30e8084c6fb39979d0cda3d86f565cf743ac3764c3665bac. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DGA0H2490057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa500248e15751d91749219c90b8e68f2b2d6e3440d4c72e7c147d122dd69e3. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/DGA0H2490058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2145a42d36f939710559957b61dc43b2eeb855f3809ea3b2960dd284b0513ad4. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/DGA0H2490059.
Forever (ชั่วนิรันดร์ในใจ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddecd81eec94fe5e57b77172b60648887cd3dcf5ce9f40a1ac7c96b6321958d. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/FRX762599222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd721ada6dd87151d285d5b641960bc7736327508a0299c17f9b7ba35b0b19818. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/FRX762599223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4137669b6ee46ee5681732e187bfea15191797232ae62b21d7998b33b5419ba. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRX762599224.
FLOWERS ON EARTH / WE MUST DIE - Mastered for Vinyl
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ed509f1f0c791ae4a918581125ab6cff694796e46523acc570ab5bba32deae. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/FRX762599225.