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 0x67c599de846f158bc25dcdcb57de6a9c2f405d141c3b2783e46a54f9dcd099d6. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f372cef-b21e-415b-ad35-3c0eef26e8c4.json and https://artists.proofprofile.net/proofs/artist/0f372cef-b21e-415b-ad35-3c0eef26e8c4.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 0x90a0f60398d8ff9cab96ec01042d7703a8d00f77717cd9d35ee26e10ed811be1. 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/INS172316728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9d182a98e60a4447e1920678ae1dd2434aefd4bf75fcce5ca37cecb99960b1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USL4R2259422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bc54894c237d6ed219b503b7743b5064698e74c26da855132b041ae6953522. 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/USCGJ2285252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5734203e1b12d1ed776020b89b3b65e66e31e286a38f7d6c72ebe4f97a30b99f. 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/USHM82153295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7b1dcc7fd92e0628e793d927c1b1899d85018a6cb1f8813a1dd856b571a9ef. 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/SE6QE2173018.
Manjummel Boys (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db20bc828928c1b9071cb7b40e49bf2a195076f9bb7f8c62388c1900f98dd7e. 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/INT202404400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935a62edde248e2dac37e4bef75cd4f57b4cabc392759f115414218b734d305d. 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/INT202404401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1e529173071889d7915acd9b22f50dd0cd860d2c17bb5bcaf936d7e79b77ff. 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/INT202404402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d74d2f552f37707d025bbc7ebf99397643a3f1eb3fa0ee4fb3eae52afee378. 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/INM5B2310345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb778d432270a9485df91bae7537da54b3132bc5da856dfd8d232f2ff2f3e1bd1. 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/INM5B2310357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d65de9386c56e99d046d375b6ba19383afd4610e3046a30b8351e718206a79. 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/INM5B2310361.
Bubblegum (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea928df5f76e8b11036e56a344702c730b624cc7674828f3ce4ae36f06fde282. 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/INS172317068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b3dbc5d03155dd40166587701714570503ad25496201e069b4b53915eee2cd. 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/INS172316445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5f255b7e8313f7694224fc54700dca08a62ea1ae1b272f21d80759a8136cc5. 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/INS172317069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a0f60398d8ff9cab96ec01042d7703a8d00f77717cd9d35ee26e10ed811be1. 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/INS172316728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6669b5a0de32fb3f28c80f57092165135efb050e3989a7fe5d68970bd6b419d. 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/INS172316827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9229986ddc2eaab53381f76d5b55863d41a0317fc79e4ad444330e14f588ac. 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/INS172310274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17be1090f2ba712e152a1bebae93fd12539f312436c23d862a047c77a833f9d. 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/QZHNA2478438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb70b4a550d417f9984916fab80ca0571f8bce779ac1c1dd452ffafa255ae6d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZHNA2478446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5e995cb8e0bd2e901103bea4a9fa78e9b414db1baa77f793b3d327a5002066. 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/QZK6Q2490727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775e048a11a2feb4ceb029fbe2e44804d9ce9e1a5de451b811b9f35b25ef536e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZMEN2419426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb70b4a550d417f9984916fab80ca0571f8bce779ac1c1dd452ffafa255ae6d. 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/QZHNA2478446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9678e4547bbd7288b40d61dff7e9ee7519ca85d219a68f3d8f70dd90bf12ee5. 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/USHM82250436.