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 0xad952349733a04aa46ccb3530980872d587fbf5dd868800c935ab1366d6d74c7. 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/51aef65b-0b65-40f9-b57f-4da1cf013614.json and https://artists.proofprofile.net/proofs/artist/51aef65b-0b65-40f9-b57f-4da1cf013614.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 0x3ac57af6ed0c0099e5f2bf70c97012e451de229004f54a3e8e75212a3ae929cb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DECE72000423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a366734a190734e2d9ea51301aa0786ae1cfa15cfba39846c5ac35b057c8874. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DECE72000425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe9aa4451c23b6be1859eed61e9d88d257e6f0f940133f60720bc633219a2b4. 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/DECE72000424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23224234cde2d9f9f558223cb187549d531c6a051702ae8cc04849d0150a0d8e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DECE72000252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6080bde505972c356a063330fe39a805950f0195c8f78268809776e1d31fd3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DECE72000426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4d08ba1de66e652bee54805453eb6118efdcca82068ff59939acc64daf92f6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DECE72000427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf1d8836410d98c6452608ad71afab9c251cddf4c4a70b81e4106ddd865fa76. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DECE72000377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e08a8a3a146cda61d86e1e91cbb963c92274c53fbf0047118c84ddff734c20. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/DECE82100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7cfa9d2cd3845d2ea6044fdaaf20d7e7e51d1abb28be5370150324d0df28d4. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/DECE72006790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ca53aaafa32acd82a88d5035f08e80e23a07e93848ddc20054739f05ae1545. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/DECE72006795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca63f578f530a5745739d2aa058a6ec9d4e1ff751966e861ab5b31dc9c87be9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEXS82200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7943ec5a0af23c2d816e80831114bcf64f333027480d5190872b3320922b4e2. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/DEXS82200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86754fd536a31a7373d6724c52a7f33f415de8851f3073857c8cae8dc354314e. 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/DEXS82200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca63f578f530a5745739d2aa058a6ec9d4e1ff751966e861ab5b31dc9c87be9. 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/DEXS82200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8963787c4f7cea061a490ddaf83a7e0864ffe50af1162821b52f81727be77f. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:00:32Z), 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/DEXS82200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414a28523ffc128bae5daa50956e05aaacfd2610e0d2b49eba46cc735678306f. 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/DEXS82200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95af645c4d53ef73c1a3367eea7e0178e3cebffb37c16be9bf6266bd68a10fb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:33:24Z), 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/DEXS82300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf539655f97fcc23afa93912c6d01d5e0f63aeb1280620a7e8f174c1f0805b76f. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/DEXS82300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afa00a0041c3167c8d0bff918f7f6b6827e0c4ff42f9286bc7327de443a2914. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEXS82300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd0dc76533e4e5d0431ec4aa6ae9a3e5a88829f832c830634a33196806e94bc. 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/DEXS82300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad45ad31b382d4d593f990140135550183cec095f6723ecc168e1d72c661abe. 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/DEXS82300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f3913c49fbf74bbc7a4cd51540fb886359c589345311dc7ac11ea72cc2a118. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:17:55Z), 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/DEXS82300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821f710494f28d93aaba8bc69bb5627c0cd5d272fe9c94fdb5842b9bcb1dcfbd. 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/DEXS82300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24158d65c46e8ffa412fb417758bdf175fa6d367e2c82522cc87667f83ef0fe8. 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/DEXS82300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f33fe4fe5341257fd09bd9ef822f6ea97166552791c62a8482c21b9482294c6. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:15:36Z), 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/DEXS82300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46be415a139bfbf6fcd6cd69e32b0565e3daeca17af80b5734c683ed1ea637d9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEXS82400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27e33645e728dc2aead0af4a45fb2e16307e3044c0dca16fdb1fb8172987099. 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/DECE72002870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b8b7859bbbfd03f5574efc957f0c74592b9f07f508ee822968122e66b9b9fe. 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/DEXS81900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b8b7859bbbfd03f5574efc957f0c74592b9f07f508ee822968122e66b9b9fe. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEXS81900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7839570ce7d8781a8d3baad8cfc67027d29788ad99bd3025cbbddb90d39003a2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEXS82100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68dff8417997310bc09aa9061f5d4b8e3199edb366af15545f3c4a662329a4ad. 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/DEKF22200499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69da950eb4be57fdcfa4cf35dedc3e687d9d1e979905de6b021dbcea3dac326b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEKF22200505.