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 0x710950f69897afaf085756a512ba59e3df3f1795d5799905d900ec53015e136b. 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/040166e7-33a8-4a5d-865a-3d564a97be67.json and https://artists.proofprofile.net/proofs/artist/040166e7-33a8-4a5d-865a-3d564a97be67.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 0x87a4f10a354e2f0196596efdbddf68ee1716caad850a0385c66cbb15ff428fe6. 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/QZDA72020526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5418b3ec7f52c89fd2954cee9606876e4322b0cf6277c78ed8cff122cad4789. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZES52085478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9299865c12228f6425998aaca924d1429c09e093fcd110f0229d6e13b43303. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZES82006872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfb797a9a16a4f8ff20571a9312240af8de3f689c7fd452260d22ffe370921d. 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/QZK6P2023203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd090b805e92a838042155d9c8a0da94c776e854dc429d7f6496cc57083bcd5b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZFZ42187135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf088d4540be121bc84430ba231ded7850fc4875ab8b345c5c65f0983e8eb196a. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZK6H2155915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8657bde35c756682cdcb1b009302a802293e48b27114c85e72d1a8281300ee9b. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/QZES62282002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c950ad5a9cc81521fcedef0dbc6cfac44e7893ee0f1fae86f9dcc37f7274ae. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZES62282003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafef1f961c175d0b75737493bc6c1b0c52a3f9567744d94fc1a2174b67d018df. 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/QZES62282006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f90234c583f4f62de63de843c8dccea20b92d69e156d030a1b69f682c933689. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZES62282007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe353d0785497086c75da99fd83b15905ea85b32a5ae6425cff9495cc55fe1c8a. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:42:54Z), 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/QZES62282009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1607e7159028f283ab92b8135cf1361b1c74d3d8697f8d8692e5ceb2b39cfe7. 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/QZWFR2369366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d16a510ad3b30b4260770de7fd2cb691e99eaa0e265fc243560d2164de8efc. 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/QZRP42428094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f817226f0d75ff108117380490d3741ecdf6e282f87f2dec6cc9e574576556. 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/QZWFK2477849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4a05db65ab5f5bdd5087490b54dfa1a2c1440c2d75fa128fb5aea3bd445ec8. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZWFR2404342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f2268e6bdb676a1a15ed52e5799dbb745411ceae4bad5afca3a62169893520. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZZ7X2486416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cb789370f17636095322297f5450e129b47416ecb5350c39f1e3eeec60cb61. 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/QZFYX2552253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186758f4d966352ae7bf171eafb66e069ea176cec8b792cf30160dee2aa15be5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN62590995.
charlotte's coming over tomorrow or, emotional
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea9e3070a7e61b13c9862081e3aeeafffde8755bb70052539a3355b775cd45d. 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/QZHNC2505299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f2268e6bdb676a1a15ed52e5799dbb745411ceae4bad5afca3a62169893520. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ7X2486416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d656e40e3a3ceb3b815653af8e5aae29a6186c688ce14242cbf41cd5f5a530. 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/QZHNC2505300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1291a010bed763e2161266543493a0fd2e3e6c7baeee1a2982b10ce69f427c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHNC2505303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0509665834ff8438fe856116e1433435e9c627f29f5cd1a3e816ca19a5f569. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZHNC2505305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6635758ceb4a15254e1d4367dd8ca1f8dd7a483284255ccdc73789dd09b0f6. 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/QZZ7Q2541370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984b567a750c51a564e56b294ac67d87e45c50f9426ec0eb48dffc8d247b04b3. 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/QZK6F2270740.