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 0x2201bcff26e800e48b795e5c05abd80ac133e240ade5a7b8faa9172193a3eefd. 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/6b496442-29c7-4f32-b346-0b8249987948.json and https://artists.proofprofile.net/proofs/artist/6b496442-29c7-4f32-b346-0b8249987948.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 0x9a2dee2b652f35a0c76cbdf58f596f14f2a1c644e3eb5908aa6418a990e4980f. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/FRX281964921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e78cc8b105ba30ba2bd9e7ed8cb66b8bbb1219c9dbc29b02df1b41f647e0f8. Chain 2 (Bitcoin): anchored in block 957895 (2026-07-13T18:41:29Z), 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/FRX281964922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cdaf64f739c78eace88cbb7b3e517b1adc29e0e3d7845c598f12800dcbf599. 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/FRX281964923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5f1505f32a63637f5e2d3615940a04bcea5333fbe6df4be3568193bd4d5218. 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/FRX281964926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209f942545d774f7a616a465503631b42729b93625a477165f6b85487826fec1. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/FRX281964927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990ecfd3c732740cbd98c896976b498276b4ca77ac16d95386fe7bf119e447de. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRX281964928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb20c06853d8318c5c953ff760fb021502799d004d3489daa035a52776d2746. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRX281965043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37921c024ce1b199d3051806c36979acf5036b539bbadb90354c093953037f3f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FRX281965049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f659e5ea351c2e437551a88d16b548ffc9640797dec4027ac270e10e233d79. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRX281965052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8bcb5957343233eafb9c1107bbdd8814ecdd2ec8df3102c5283a4844b715a0. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/FRX281965074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7515ac48abf9e4bcf4bb16a3ffa8507a945854c7e1cdf8a5bdda5cf1604786cc. 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/FRX281965075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69768d4903a7a44de6d6d6a210043093801244d7ff475127dfef7f58fbc2b7f8. 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/FRX281963857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e24bb16242f074706aebdf752010039c83674de9958bd85b75cba963959a85b. 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/FRX281965080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a6013b053fd7f87a131ada751d81c4456e6f5149d8d6129f1bf49397534111. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/FRX281965081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0214549504f9bb33b823f3362b1647f11a07ebf327c62ef7f9635af71f013f7. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/FRX281965085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb957a2609119b48cfc71629f59106153268ab6e256895159e79e5e840dd74c9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX281965087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f59f323b67505566537c1cc2dee3342fbb84a41f13d5addf492c71f1025eb3b. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/FRX281977799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832fb1f67226c8031006c90ec9e6ec409b40468ddd5fa4a359436de08f1cded4. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/FRX281969128.
Berandalan Ibukota (feat. Farri Icksan Wibisana "THE SIGIT")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b25c79daf9d6b968e558473b79f880d3c22ba259fd5d726fcb811bb20b3c53. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BGA671476701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330231e2496e5f76ca12f7de627b9a9747d06152bf278f950744b7d0d3b09f00. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/BGA671476702.
Anugrah & Petaka (feat. Rindra "MUSIKIMIA")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6994be10952c78c913507ac54ad5204db9dc481bffe6b57654dcbef03ea36bc5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BGA671476703.
Senjata (feat. Eben "BURGERKILL" & Roy Jeconiah "RI 1")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa323c8c27bd2945818acc32a65e1365350aed52c3e35b5b50631f989780fb710. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BGA671476706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc3fb808b2873d1a74cdad3d23eca0e8ca16eaa9b74bc5977158436e4042441. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/BGA671476709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1a3263f189cba81550fe9edd3dc3c7cd698c8a97aa4b44f93a718774acf9e7. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/FR2X41799714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2167dc978645acb23170826b2f14192513ecea354a8690e4c45248a44f3f0532. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/FR2X41799715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1410aaccd45ea4557eeeb5bf2103003337d4cc0df711b19939c1061f4eed5d7. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/IDB262000089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6164d6215908decbaa81922b9b78de3f91c9fedb650e71bb200e4417eb669b3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR96X2115456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d5080b1de510a0987e3eea1589370cf7843346e2dd3d9b145eacc57a13a8d2. 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/FRX201729897.