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 0x928a683e7b817726568f1d49927db976cb9ee3fd9dd1a0c81353e7b620b2a716. 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/673f68b7-94af-44ac-852d-8d04636b2ea9.json and https://artists.proofprofile.net/proofs/artist/673f68b7-94af-44ac-852d-8d04636b2ea9.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa823b17f9acf5f42d0874d4f61f577bf687062ea5f42c8edda0a7ae19f6f9937. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:25:26Z), 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/GBSMU6625095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5d2c02a62f662783b1b856bc1fef7bfe34da5e41faee1c26705bda04e99770. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBSMU6625066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6a19fca3016e1523226f13e8a042c353ad9a33a5a4c1c6976cb05132f94b0a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBSMU6625067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1c8b855b6f46d2ed7e81602fafe47bdb9aa6cd890c28c946863e6e209a7bcd. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBSMU6825971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ba29a9d04455a663c843ba682dda61615736e74744481414c7127fa08ff173. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:36:31Z), 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/GBSMU7171862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87783e9d41c0c1ddc3c8fc31ee00a37f8697c39be33b0c48ccc5408cdfbf299. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:36:48Z), 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/GBSMU7325797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd9e39d5e80429bd5db1016e754eda6629920f56afd3a2af4da7e21e4a06ff8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBSMU7325798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1e3141d4b3edd8656daa53a1eb952a77da430b919a3f95ea8a225765cd1c37. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GBSMU7325799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d185a7ddc2d113239e5ad59348cee6c763fd8544932e45f7e2e1d49cfa0845. 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/GBSMU7325800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9982bb01f382c23772d594803b9b75cf8d9f97e37f64052517ec7a5487e47e68. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBSMU7325801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f65488ea0044e89c01a07bf168e9ad0e51336f9e50b5322da8ffe2731b65747. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBSMU7419793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a42e5e826b39f8f0e59a5d9581a034091835d34d0d887b4a7a84de8110cb37a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:36:00Z), 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/GBSMU7419794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564abd12f6e78044a8e90edd3b6c42d6fc5f2784a7edd952b1cd9f4a178acb93. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:38:19Z), 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/GBSMU7419795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6ccbed7a7998d080a564711a5fb021d14974ad422526a3de4751832c87bae9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBSMU7419796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270f78e085ec713cf1b17ba770b989faa8cf223226d725a38b5a9aeb789b2135. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBSMU7419797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ec72a73ee14198db8e984c811c250280bbe74473b5af6f43d0502e365393fa. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GBSMU7755562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a92aef55d7f8545460eef9b5a83add6e6409a84e178a374c82ecd172ea225c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAHP2331074.
Everything Happens for a Reason (Chopped Not Slopped Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d41a7a29232d4c29e8d0cdfa52a577d269507b8f5a18e2ff1c741b5b25e1bf6. 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/TCAHO2388528.