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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251b026d1547971eaeebde51138c487ca3dcdca2247bcc440a61a23698c49662. 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/5dd83c90-c537-4a9a-a4b7-e76e740609f6.json and https://artists.proofprofile.net/proofs/artist/5dd83c90-c537-4a9a-a4b7-e76e740609f6.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf688c708640b30a219511c04b8375c3959e1df43f72a894a290a03585c00deb2. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/USIR20110188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8a264490ac500ab42e64e62cbae4a9b2c7ee16306f6150d1b9bba55fed5c26. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/USIR20110263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdc209fc35334e3d20edcd79d44fe6831ba3353d7a7d4b0931f164615a74e43. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USIR20110079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda20544601bd2e0b3f6763f1d3d51c36f5d1bca7295ca3c5bb5654a55a169628. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USIR20110265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632b0597fab1a2352133fb920be0e5b4789dfac66f985d8f4425060d4e686aac. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/USIR20110261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda71628b0149ee77a1ab26ab23c901a5a19608d53832e2caa1bfd42c5a9c30e5. 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/USIR20110258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa804eb8cbb21f70e3e8e2635b14021b19da8812f56c768d37fd751ae83bb016f. 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/USIR20110259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee324133dd8d0efb43430b1168340b667570662cde0af33b5b8d72e9b62371bc. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/USIR20110260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8669c2832f2b9fb95584042491f28c7111f1b1e6bc5a3fa24bb5d8a0096733. 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/USIR20110266.
First Descent- The Story of the Snowboarding Revolution (Music From The Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193d3722261b8869d78c3f64d59939fdb627249589203f1f2db2daef7abee36e. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:21:11Z), 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/USAT21003550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91c9157c6b9db1297943b8140031ae5e90b75b8cd0083b53d97ea5818b482d6. 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/USAT21100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2671f704739ff53192ca12b26b9af8b2d607408ca4b97710aae40c7fecbbfe. 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/USAT21002399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99e3c110f06d45f7163d83539e29e32dde099933abec78bd91f9825beae7454. 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/USAT21003552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ef72a70afccb44e699c0e38f57f63abc447c6ccbd54bc4f4874b44e4d12703. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USAT21003553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee6db9b69ae9176a69d0aecfc8e7cdfb28a2a5628f53b1a3da0e321fb708d5a. 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/USAT21003554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9a7cb60fc0b0350ff2fd29cb638f3f7de04469591d8122095967be60fbd738. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USAT21003555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711bde86acff4d73fa8d78d573429be2b58e0fd909555f8a8682762d1ecd8917. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USAT21003556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99287ae99d07da55aa5caa009d54857e27f207925603c724659bb82ff23d00f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USAT21003557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a83b7d62d239a102701e57d59e7eed964e5c655a78cf528676b05ac7c976e1. 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/USAT21003558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff48f99273033bc6dc524a0993de50c5a8cc95d918a8acde4304de14f06cd95. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCABL1369613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87bdd21eab8eba228564c4e37e4334e5f838af3cb0de6f174809fbad654ffc0. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCABL1369614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7c3ba39b204991e7ed9c587976d9da4976b67576389d781f3f62e50cb77ea0. 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/TCABL1369616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f535ed2cb8566870838c96d19b688832dfc2fd578a585f27ec99288111bc9cf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCABL1369618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7ab8192093e811fb3375e97247e35fe5ad4f2b259a4a6d7e9563be3ac06e8c. 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/TCABL1369619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cd0a710d838e96346d8bec1ce661fd6e1388d4b00b74eaf35f0d8500953839. 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/TCABL1369620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd008cd78f6a12dfedf83329fc9db19ac20f70539d3bbdee7bc64400a017925. 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/TCABL1369622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8cd87e3538c2fe45af07b1885c60b7ca24fa57a8f1e388c1bf44d091f170e4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QMCE72224205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304b1a79ae37ee23462f1f59ba1e16d4df74bb61d5216f4844f1a96f37166c51. 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/USIR20110264.