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 0x3755e17c8d33cfc1d0dc1148b68bf5f10beb8947959663f4a43e7338950f0b8d. 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/0e8ad7f3-0e9f-498a-b113-23a0ecd78783.json and https://artists.proofprofile.net/proofs/artist/0e8ad7f3-0e9f-498a-b113-23a0ecd78783.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 0x9ba2376abefc367bea33a62075b2462c30bb1115b9c4de19ab5f5075d8121390. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USA2P1215898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6054dc7fa1ad8118e5fdbdbafddcb33b191b5e1e0986b97a153b187bdf4df33b. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/JMA271605045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cac4d347d4d7c21032dd779d75e9c8185c875970f1785d39cbd1701729a4bfa. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QM4TW1933819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86054633612a7869d9b8cc83865876046ca3f83d04196cbebbecd07ba0351f66. 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/TCAEF1983118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4d21f85646349b888392e86237d4136bfa935f5ad572d3a787c80d80fc8a72. 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/QM6N21998360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b75e91773c3d0b99d23ea3a90a02e2fa41023ce49c9bf71235fe0657f48814d. 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/JMA271909056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3cfafd36a3e34b00bb5389f74d3adc97eb168b87ada1e608d3edad5852ad64. 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/QMFME2038265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5b56dafa7047069e199da945f7108240b452219fa700bac5324929317845ad. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QM4TW2159255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2588b0e5b365c462bd268a450dc924b6a22d601b2cc34b373c8c48ff3489ce4e. 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/QZNJY2207511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacc59e1b0d87014d438a05cfb764fafd22551e5f6165379b6252a9e7862e028. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/QM6MZ2343417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11be175edd43eb1a99bf91449cb7846db61da872813a762cd1d519f93fda70ed. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZU5V2300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b61c74f3e709d2a6012f2259b08009d936d156083797c8287640378b5ee54dc. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FRX762467993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98a75d5100c14f024e0ea0788cd69e0f32a17f1793cb42303472de370857c8c. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QM7282472166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1998cca805c2d2b0b660626db7ce92a8ce39d494fa6584e1f8204fc2cb82660. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZW9M2471701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e02550a495f005fe1e97f7871beddddf927d18174a9027d6e36f3adf66e681. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QMFME2462412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ae51302da10552f2e7f2ea9076dba2fc4edf66e01acc1be745151d36bf5c38. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QMFME2462413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92ca7d47d91002bb6b833476f4e5fa70037f23d3caffe7432cbd6878a4fb0f1. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QMFME2462415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33005540819085528df50c8944db1e457587eed770f2ca59034e9d32cb06207c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QMFME2462425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50219ca45bd9ed4b4d3db2b45d8fdb839aed77279d4200a78081f449a70dfda5. 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/QZMZ92504405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa574f068431ab2782a94b1c8300bf9922e5c17a1840849430da1cafd01f788. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZNJV2561199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ece6e7fd0b569e3644fd657a23ed36c1df6ec96128978cf403a457fffa2b6e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZPYN2569633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf537a7f870f117ccf097d2d394da18fb63badd411ebeb56d01353abd1cb1cefa. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZNJV2578909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fd02a231a9f83b62e6461bbb1039b396de99905aab4d01b0f3689989273e3c. 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/QZNJY2590830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d4d3b09e3d8aa17e040363c9121e1e5f8058f8ad8b6128449d547f43af36c7. 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/QZNJZ2543149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301b83ac12b4198adfce5d129deffa924517d5412f0573d24625b253dc600f1c. 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/QMFME2413708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6805586662367a9302c533644dee3072b72929683f76ed27657375d9734954. 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/QZGLS2456290.
John John Dancehall Riddims: Cash Register
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d42e1fd6a2129f94a51942533746f436da5b7f15788e9bda6b035dfec39642f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QMBZ92481431.
Cash Register Riddim - Brawta Mini Mix - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a4afaef0237eb91f14ee5e539c8beeb7ef350f8a5da43f8e555128416181ac. 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/QMBZ92481437.