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 0x1852a149fa9f5ddd9cbf3a70845d54535138e40744806e2aaa977ac654671557. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3ed71c8-cbc1-4f67-a5cb-456631f8229c.json and https://artists.proofprofile.net/proofs/artist/f3ed71c8-cbc1-4f67-a5cb-456631f8229c.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 0xf6561509e53fe467ddf60a77afc9e19bca47b82b4ae6368ea34e446926f612ba. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:03:04Z), 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/SEPQM0612233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76522dd38f20b96ade9d0ba76bfba51ee875ea119fa2cc6f8a35e4a05139e8e. 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/SEPQM0612235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb518b84b2ff8863cb2a468c509af842a9179ee6401722e37f2e8d1c4acdb1adc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SEPQM0612236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9777e3c05af6888571017ac8de6f2d08bf890138d3ac8ed58855cf22107605. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SEPQM0612238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b22ff3f5bcaf76c76a996194b47e4984a25b776995b9f436a8cc71b1b13673. 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/SEPQM0612240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72c486d9fccd28e80f1eb4725315a476de2724e34ea01dc12e0915d583cc5bb. 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/SEPQM0612241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01e9892b9fff17615c20e0c06baf67372d99d65735ff3eb5ddd10fda58bf812. 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/SEPQM0612245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc787fdcc75daee0b8ae89445a330e7785fa9ee844f4d57135601c543d34a0eab. 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/SEPQM0612250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cef9a480b3901e6044b6a2013bb6052bd77ec0a315f33729f94db67965c311a. 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/SEPQM0612252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888f848f2c12d3a348e3eb92e2ca2dc7f6baf70a91af927e1ed0e8b2bd10c999. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0900307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b5fecacbecd2dcfcdd0e8e2fa1f9e11f7a80c2856a67a81bf31aaf02876158. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5d5f4c3248a3f198e3f19aba1f1b2352c7923125450195b0e630e692e3ecb6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0610278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f96861c511c2e52524a2ac953592e9406ed2206cf1f5149fa7ef5bc95e84b9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM1300016.
Elvis-medley: I Can't Help Falling in Love / I Want You, I Need You, I Love You / Love Me Tender / Are You Lonesome Tonight / Crying in the Chapel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6346bf8bef98675bf33de28a7b574560413027271376013db9d56324174125b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0610393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442811cae6cefddb622163bbcab79c72f48bf61c1a4592b8b1c62a21f2a73297. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM1200224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09b3a2bbe9b5ec070b2383096af156e4c88cd82824915ed4f0a754570d76510. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0611360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b22ff3f5bcaf76c76a996194b47e4984a25b776995b9f436a8cc71b1b13673. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEPQM0612240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3b85b7e0bf824a3122bf19ba0f2ec5ac040433f37812d5c1a00c9eb2f2287c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEAOF0502180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39659d269cd0f4aa4bb8481423f83c6012a9b90d97288a0d69f5e61b7fd5554. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0613958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1792dc1dda08cc308752cddcafe9a4a01f525dc08df1938afbf98455c9fe91aa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEXBR1200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14da4025437b453d7bf3e6ef2f098df0fe6bac7037997229de513fba2d3247e2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM1000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102d9986905dd93cc8fb5b676530bf260f391e1acaf36ba5510d207b3f8687a5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0612111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c3c189c4301fa2b895a45401fdb79bb4863447267e799420cc9b3e59335fee. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0611993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5776fb40149950e64419f2990804c673aa961a5e9dfed8aaa85d1ff680eacc3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEAMA0800260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681e864d8fcdc3aad515cdc233768da1e55114d968b01eb9c2be0f0e558a526c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0610575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f6eb2212959cc07fe2ba21802e8ed6544e87afe32d9cba565919225f198211. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0900102.