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 0x94370858eff5cdea796d0fde2777556b7b33e4238c65e53b63c2f4d3f908c3fa. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a328c16a-80c5-4323-93b0-8239258c7ecf.json and https://artists.proofprofile.net/proofs/artist/a328c16a-80c5-4323-93b0-8239258c7ecf.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 0xafed4edfc0752130f522ed14e722817535bf85b818deb61c5506ec2e3c492a4a. 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/QZ8GX1700928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f8f548bbdf2f3929db04826a2c33b14814909669604db164aed7e409d68a4c. 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/QZ8GX1700914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e59ea181915edae20de5529738a31d6e8b15e95107017caad1150419877cbf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ8GX1700929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b68b9271d6a8c3113ef2f30795fc1d1402ac478243c1890bdc159bac5f715a6. 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/QZ8GX1700878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f89d2be87e0a31ee0214f69f97e6f576bf31446bf799054aae164917e44514. 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/QZ8GX1700930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1dec7681a14d3748c953ac95bd099c984bff1facc56ca636975701fbcb23b3. 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/QZ8GX1700932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d34b205fdc1acbe0fbdc68ad519a0563a3275e82d211bb8a00d9f2caaec9e0. 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/QZ8GX1700933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933d725f4c24a724ecd7eddd28d14de741bb6c1965d8c982f2bddf0c58c84177. 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/QZ8GX1700934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b91366d9fbbaaf782d0b13638c74a826c159eedd4adedeb0f9a8495b6ca199. 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/QZ8GX1700935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23873965e34da33545c66a51d78a359ad46068992002fd603f316ecf7f78d356. 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/TCADM1808384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14dd5963206ee8fbfa78e0a22559f1f8178318b8df380aa466e453d561a0c72. 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/TCADP1818675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4438a2d050d1a5c75b33031b9b91d1c34f81c103806044933f64b7364125bcb8. 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/TCABN1326183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24046e3bc4317bb55096e9d06403c9d859eb3576f052860a0f5f5f0d7a1e6cd8. 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/TCABN1326184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccdc07bdf06e0fd746f87a3297327e37d755323ca919c3f7129b2af2cd46aee. 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/TCABN1326185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154b37de1ec5b3b28715407991951630aa4d6bffe042989ccfa627e5b2462c51. 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/TCABN1326189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c0e88e4ea618598702d2521b715153b0fedfac08fd5ff33f3d55f7de956dbc. 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/TCABN1326191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2310f162bf5775ca4f4e4b4ed7a0556e5e7881a0c2e4ddd881125ff8c8b1f7a. 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/TCABN1326192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855dae71d14d2ee20fe5cca026370f068573c298b57727c30a42a86b296137bb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAJA2457594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11f63b3cdb3401285149d3e7b010c0b890c8fdd3ddbdf4c61abcc2b68df7b05. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAIW2458763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933d725f4c24a724ecd7eddd28d14de741bb6c1965d8c982f2bddf0c58c84177. 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/QZ8GX1700934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ec80306f5bca60042cb66e27823246aae94b6614d1ee137e789fe0a08ffa49. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM99V1801205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23873965e34da33545c66a51d78a359ad46068992002fd603f316ecf7f78d356. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCADM1808384.
Keep It With Mine (Recorded Live at the Hangar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c51b0f5394e70ef85deac37af58ead95f6dce6e49790c70ec20f5b13b877ea. 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/TCADB1785898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65772a02f3a7310c7d5bfeb03091db43c52f787a86a354e76dab290db426dac. 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/TCACL1631758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11ea9d5f92c3d6d4209bcc1afe3c09e354d71d7880dde546744e6672367ade3. 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/TCACL1631760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b42ee8dee3cb5fb3376138fe267e6737be2b9dc10f2291b970e44d34297d13. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCACL1631761.
Have Yourself a Merry Little Christmas / What a Wonderful World
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3322cbbba4ddb68d20b8be866cb571eeba7aaf8412c6637e259de775d26cd1a5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABR1316645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263ea8e468afb5bedc55e10fad29524efa31e47c01560920da3d0151c34a9c8f. 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/USHM81256227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2d2c67759e3ae3bb270c476a5728e3de02aede2b59fa0c4333a27067a823d7. 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/QMGDS2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b8177fbaa0d52aa7c5c788226598cd67c3814a440a9558a17f64f2f16fdad0. 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/QMGDS2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ea6ffe3fb629b38bcc399685806d69e2b477a593aae3c0c3112ace499288d3. 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/QMGDS2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7fb33f08f9b73db79dbb11a858700dc86a5540362a066a0d2781565ac14f6b2. 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/QMGDS2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9bc990e3f7df914780b5d1b2e85783b08627ba41b10f9a8dd3ddfcc0dc515a. 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/QMGDS2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f86b68a1efc60ec43f5c3fe2570c5b141e73e4fae3315bd6442c06bc7d6ed0a. 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/QMGDS2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14815db5b37cf9a03d5b1fda5eccc6bd2e2bffbb86c07f28405185a2ab786e3. 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/QMGDS2300011.