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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5085e6f0cf9673db7ce1e587f3c42bc87061d7fe5b199f9f8220e9559e7e59b8. 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/6ea82dbc-9af5-4873-adea-094cb922a544.json and https://artists.proofprofile.net/proofs/artist/6ea82dbc-9af5-4873-adea-094cb922a544.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb7b0ea78e835607a2a690ec8dd47c8d68b257fea56eedb3bb11d5aa0a8d831. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USNPD1216780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f558fd24cf965459779b7f2e44e1eda156148f8c549ae549c4ba244a18f9bf. 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/USNPD1216658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef45e62557a2cf93d158df301c0f9ad18ecc8156214001234b693978f9712a9e. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/USNPD1222119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938c3084514333eb202f49fc6a5c5f7762d6b1c820368b7d7d8d0a48a2898c60. 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/USNPD1226686.
Joget CubitCubit Sayang - Joget Hitam Manis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05587c82ca53f341cdafeb20a8ddda83ba6dd47f71fe7ff9891a9c249fb44242. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:40:20Z), 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/MYIS10801546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd8cf5e727a099e9c14f0aab51e15397be34e4292247aebc7682bd4f854fa5c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/MYIS10801575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0982769243ca65b66f2318676168cad67c4db513340bda84f2995793c086ca4f. 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/SGA037400620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd823e7a860f113140ee1b765cb6b086d28cc5f1758c529e3ed29f166a43bbdf8. 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/SGA037400222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ba16b5704801816bd5ee8fc46d4a71ea52cb8ec50cc10bfd3bae9bbf6ff5da. 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/SGA037400217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba8b60828fcbca9e4d9153d3d0f6224092c324038132465437b05b6db3f03e6. 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/SGA031100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca25fcffb0850b0a39a65cb61a5d9b3c9ab39a8db8f49253bdc37cf817367707. 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/SGA037400610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f8b1501e24c9b2fe3fba4be3e7375d016473804f7d5011e892cbc121e4696d. 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/MYEM10900129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917c8e38d6ff4602772934b8b0166b077e5cc3d234f458035dc0f5ef3345b152. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/SGA037400221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2787e4da12a47c2136c0889036431e5e8ec996d545e4084639249156aadf089f. 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/SGA030100180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bb5a37c4cbcbec077f0078d5fa0dc0e83ac6fd9739932be9d6a0b1606796ab. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:44:57Z), 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/SGA037400219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b1dc5fda9d216287a453ae682c094a9659fd6cfcb423226ff9cc0fb4732923. 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/SGA031100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597689f844eac7082999d7f0c0734aaa6dacc03642cb4a9f7e18995d494b77b7. 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/SGA036800974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947ca1ad66991d78f1d2b6d46df374de83c8362b6587d4afa227ea4b33619326. 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/SGA031100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d0c9910a73bcb3155131e5503f473ce315a30361fb5bc22045e6943f261514. 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/SGA037401243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e38d71b9a092a3a53d00204fc979c427de157ee31f076edd6e28e7c687afa92. 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/SGA031100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069fa1104b2fc3f07f9263594ea67bc328967decca843f103cc557df7a65d54f. 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/SGA037400224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bbad8d925893ec3eee65e758ed68decb7ff41f9624c6222b558e4ff4ac5b0a. 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/SGA031110163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4639e66cec66b2ce35f2b7261b94d05882e8b6c97504d61476edab93f528ab. 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/MYBM19900163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2415b211074242c493d9b643f064e4733a3710742f90e077e8d5e7d3123157. 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/MYSM19610041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bbad8d925893ec3eee65e758ed68decb7ff41f9624c6222b558e4ff4ac5b0a. 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/SGA031110163.