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 0x49f4fe319f754a316da95d381aa89f89313eb162037a0ad643ac12e85391b642. 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/f67e3675-1528-46a3-a989-37e702007379.json and https://artists.proofprofile.net/proofs/artist/f67e3675-1528-46a3-a989-37e702007379.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 0xe0e99d818245f0913bc9248a2a99176b0d92de20407d07b84c8312538b8585bd. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:56:32Z), 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/SE5Q51828218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e76be573c96849677c6c2225eb11546327bfa8542e0896f191f7bb0b9db398. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:19:24Z), 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/SE5Q51828008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7239dd49a06fcdf4ba21af8387659f5e5d1795a15f3263b41e120d7b94a41e76. 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/SE5Q51900824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f494349d0c493e53ae315e56b51d553e7df737868fead50d82aed9ca9aa793. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/SE5Q51816151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5839316568666e1f392d246ebb3a0e6dedd12ff911513606b543d6d6cdc8e9. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/SE5Q51801113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b8ca6ee85990163dd65cc83be4403eb7ed720797ec992c9994513ffe5943d7. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/SE5Q51815635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e32addb166359cf92434fe1a2be1b33f69dc46aea194ebb7bae0b53e9816486. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/SE5Q51828254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439d12e532f613ce7d3116711b26ae9486354f98a5516af50f7184ecc41f107f. 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/SE5Q51828187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f63d5511c6ab685a1858f248b20ffbad0af58bfc54f46b096fee5f5877a5ea. 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/SE5Q51828252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386f6c517eca8b347d6bd255255097a3c01e0a6495bb33d419576ff77c65c581. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5Q51813724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eec0fa41a06881476a066229d6d79e6d05b61b904535d8df9755083fe39e997. 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/SE5Q51809205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb1a4fb76eb7daee1ddc0dbddc39d98ac32697b011253b48e5301221377256a. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/SE5Q51820489.
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
Wonders Of Nature - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1155c8c551bfcb4e668ba39cd0a91345ce71531f71240723ea9fdd817ade14f. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/SE5Q51819014.
Wonders of Nature (AGST Remix) - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47333ab01f4bab3e66ec890e52e920491d85198ab19192131bdf199962d578b3. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/SE5Q51826882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99afa9c18b5f36268178207ed1d225e4a731fb4965a559afefc50af5ffbc9b23. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/SE5Q51828132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238352c12b6b302f47b214b2423df3ebf64fb53dbe635854850a692340ba949f. 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/SE5Q51828319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ee988a6fb590e3e0001a676cd7980c62fffb237359b5ffc0b0da1bc5fe370c. Chain 2 (Bitcoin): anchored in block 957551 (2026-07-11T10:03:47Z), 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/SE5Q51806055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf525ae44d6b3b0491773916bf4bb82228862e6e425835f2093305e15c85e9b9. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T03:45:43Z), 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/SE5Q51822649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3111258152c24c098f0da0e52830fa5f1121cf0f485a36ccf3d1498b7731684. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SE5Q51809867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1509ba37ed1397997ec37c7ba907fc451c28bfaf846f4556e77edc5e13fa6e04. 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/SE5Q51828253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0de9e3f182ea51ffa2e5be7a5b58bd8ddf8cee2986929a51e6118d8eef1566. 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/SE5Q51828345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8fd58cdeaee3f8f282b7b30b64fe9dedab3b82896005198aa5dc5a08293db6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SE5Q52501751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000eb6094adb1acf8b6d0510121b4ff77ac2f484a15c0376a35a549baa96576f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SE5Q52501766.