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 0x39a9d7efe1a9a68fdf5667736601f0487c887f36e0eb4723299c1debdd41461c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72c0734e-56f3-438a-83ed-4a89c6c8c0cc.json and https://artists.proofprofile.net/proofs/artist/72c0734e-56f3-438a-83ed-4a89c6c8c0cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Here Comes Farmer Dan: My Little Massey, Vol. 2
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 0x5946125fe485a6dc2aa2ab5d71f61241c3e331a44ca1fecb9ada394a2e40ccf7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCACN1665635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7359faa353ca04a97dded27108a3eecb628444a3b155c1d831aba32312c5fdd1. 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/TCACN1665636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a52792ffe6cbf70015967e5bc8128247d954a013d18647aeb17d4e79726c70. 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/TCACN1665637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc046440d92c94640480b5922f6b1b3a5b176717335b43e35c2d6ecf7347dc44f. 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/TCACN1665647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d309ff9c9bb244958e3d63fadc4cb15fe2080fcfadea9146d0d90a07b698d1a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:25:45Z), 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/TCACN1665653.
Comedy and Country - Farming Ain't the Way It Used to Be
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18fb9a132af6921512dd602d2fe393ec33a867e2871a3184100f0c026344fe6. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:16:33Z), 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/TCACN1665795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765cab8fa5379c28b21043643f9ed9984cbf984bf2c4a0bcdf67278c82a8608d. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/TCACF1578232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90aeafbb71f04168b5a5d8cf673675079752bb5c8365c790ec78189f543c7ca9. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCACF1578236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3608d192f62adeaf1001649fa33c02403e563b9d816630697692567c32b6d6ba. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:19:00Z), 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/TCACK1531196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6fedaea372c539b9dec547027c768a1ab3a859f164103c1ac4868cedf03433. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:58:46Z), 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/TCACK1531201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cb2ad6d08198ced2cada97389264f4c5cbbba31e6958882e0013aa1e97a8a3. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:23:08Z), 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/TCACK1531203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49cb7826f32db8c0b8becd89d38017b323eda1863ade65adcef858686661c417. 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/TCACM1611704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bbec7e67bbd08d44899b538368c22916045b85b20e5ea89c323af3d4e22f3e. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/TCACN1685605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ad04e91e0afa8a3b6ae70389d75e30d1906b58855864e9504c6634f5d2593f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCACN1685608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d425951186739ea1d6902359012891825e4f8e285e3ab59f62c321214d05efd. 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/TCADB1757069.
The Man Who Drank the Farm 19 Tummy Tickling Country Songs!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e2426045a5493ef67a443fdd40ea83428a5956812b2abaa402dfc392440f64. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:45:22Z), 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/TCAIP2432952.