1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xab479afcf2bbe5ee4eaa45c93c76db637236d1bb26c6197b19682416bfb8c215. 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/f1e58b8e-a4e4-47c3-9b11-75e579c9c17d.json and https://artists.proofprofile.net/proofs/artist/f1e58b8e-a4e4-47c3-9b11-75e579c9c17d.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 → block OTSBitcoinBlock must exist at that height 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 0x23eb297abe03b6e8f9eb31d6c767318ffc4909089fa8f30a6fc64759ff765525. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/FRX281727481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4e525db08dd533432ab95e800c3ae13ef688714a3013af93eec169792fcca3. 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/FRX281726079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095c3977c1d139b9c924547f232ee56a2966f40bf38b02d8bec43bf020a17986. 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/FR2X41828097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24691df6df96a3787764ab354514fad90be9669e84bfb0ea5a15c548471a45af. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR2X41929542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6893bb5ff52208f2a474a561fa97efc45955ef1312fa524a2d27f0d9fd4145. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR2X41939130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12f0fd7dd23b1518ad580d29c746bf4e788413e2745d2c8c60730830a99b597. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX201812315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085b058490b0009fc0b34ad39f1273fefe8edd0bc31024cbdbb3cd50de928242. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/FRX201832097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02018febc1acb7854dba882d8b19541f3f8aa0020053cf22b952efaa37cb167. 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/QZK6J2291459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05af7f66371b71b7a86b2a250626bd41eb0186cb9f7e7dc61a4698091776564c. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZK6J2291461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaefabfdb024159b500b86be89178c3cf32642c43cbb0f2a6bc2d0b6e8f73bc9. 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/GBWUL2131243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d196443b9988cc5d70d2eac45e9199abc1e2e50a2e08423942d20e250366e8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBWUL2131247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624b0109227f28cf9431a435d9b2439e42a553b75457915557bcf5a2fda1a13a. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FR59R1905168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5dfdc96b1bbcbdf906c3fa97b9987953e12e6bec8a14b9bdba78a651ecbc12. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/FR59R1981023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6743add832515cd4254b86087b17d0507d8282b10ceb58f1d7c609e6e7c9f3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX201926189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036269a64d7f18ea7702e033e4f4d200825be80cb58e14f7d915415bf71de8b6. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/FR10S2088494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20366da145a7e2f40eee8f27797d3da6e0fdceb0343a6af71da2f534154e6847. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/FR2X42067855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952783c5acc524ea577d6db325f736558e88ec9e622ad79f94491844186e92bc. 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/FR59R2102311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd2ab8c33ed33b2c3638748a118477922c6e494c05387ab1642fd8a7764b816. 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/FRX202172501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8411d218396cf7e0b8450a9bd6f1c85b598deae29a65330b526994a4b827d3f. 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/FRX762191946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f8cbe1e6eef45d8be4866b06b28765fc1ff47cdfba11c135b81cf3dddb0ffd. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/FRX762191947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85519ec976639dcc7244b472193566e6771928da27ce912228690d228bd6013. 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/FRX762191948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b39f9190f34a43e421edf3cd8eb5053a8b051db5121899020de450f83b2e0fc. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FRX762191953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dbdee4daef4abe66e74dc226691f3d79a281d913476753ec17fae8930b330d0. 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/FRX872176013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee6f9a55ab878f8e0b674fa766f39c2d355336f5bdc6cdc6e0be2db266ff7be. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:14:00Z), 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/FRS182148778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3acd8cdc972003bc5c2a1e360f47955b2f2dec9e5b329cfd37fe47fa1873913. 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/FR59R2219014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89ed8a3a9a48782769da8daef19af54646b5891d3996e0e039d7ca164b3af55. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX762202336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9d287145a6e1e842eb35228a8966de42ae3549d0822ed60be51d12b7d39eac. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/FRX452438665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd689d3bb67b9212743438611388031383ef58cd8be3ff591c0efb2049fe4bd22. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FRX452438670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73793c662da724f892f4f9f97e9b17b92ebe104e88615da78c9f92b734f41624. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FRX452438671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81300dcedb37eb5685e6ca1a9b7e66512daa8b931d87ee371de8b6bd16983c9. 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/FRX452438672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d6e5d7f5dedb4705bb56db7ef470d173c43e5a9c1d38c91b81f1d86edcd22a. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/FR10S2547959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e8fc5c32512ceba14bdec4180d61dab31294ec1b0883f5457b67cb43641607. 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/DGA072531902.