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 0xcdc695d62d8dd1481702531667d352fb6affab62fd6b23d11a6742705782a338. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5489e237-9f99-4546-a234-6e6f5e49258d.json and https://artists.proofprofile.net/proofs/artist/5489e237-9f99-4546-a234-6e6f5e49258d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Good-Hearted Shepherd (Religious Songs)
The good-hearted shepherd - Religious songs
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 0xc054ba503f37838ff7ada0a8dd750a891aed786a8ea43408dd92bd9b0eb8fbb9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:57:51Z), 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/ROB010909354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124807995d3bc663e2448deff147bd8f67def41ac3352f49b9e59336a5ce608e. 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/ROB011670647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8180ebd2162cc5ddde38b3124eb8d603b5c23e2bc30a5e62d6bf7eb975a4ab1. 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/ROB011670648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd09c573edb29f56ffc1397b2e16946a4a943609abcdedff116af78ad489d30f. 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/ROB011670649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeaa2a268b0f28925abbdd46cb29ac884aba48991e8f143a83f0f63566a25c21. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ROB011670650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90abaa5ea8442022ffbf9c9d798d1743cdd407d95f777431b45aa4d3f08aea7. 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/ROB011670651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb44d469007ee9a270bf4705e4e2b8f00467a1a9f5f7152ddd1c0a750202145. 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/ROB011670652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac167ce7bb2cd570e456f17af1d58ee73d8398a32e5875e704d5b7c215dc4f2. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ROB011670653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3982220463df0da36efaed188a2990c1df79c11eb5018104f8be9c245b26558. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ROB011670654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0134bb1b63fddf281f81efcb4b654e4023ee5c3d51e6109bb8283a09c4334f7. 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/ROB011670655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007d79dc7d54883490401df545daf3dcc7b80c0124f53268f79392daf5914b3d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ROB011670656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156f92a9e459c212d2506cbe1c3d7734aacd5188e2278290b5000f70adb57cae. 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/ROB011670658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187b2bc77440051c80ee5dc257b5012cb749a2418751d31bc2577a29b36d665c. 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/ROB011670659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17031e6d09a313df46a8bf6221324899a5a71db5da098354dba4269621a7f17d. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/ROB011670660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fe51b408b4be1dbcb8e9391f7a64612d6cf5cf1552a18891fb44ad365136f0. 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/ROB011670661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1176c7e7990e9650b01f7c03fa02a066fb2022e87f90f3f237c1d7ddb287fc9f. 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/ROB011670662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73140c002717c4dad974bcaa84ad44d4f191f4dfaf31626debabffc2bec1030f. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/ROB011670663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8dd5fb6ed3bd7a4c892f9ebc99d5c1bfb9cc81956f703c52dc3ee96d9df8def. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/ROB010909407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9e6d9a56d48515d6c08f8fd0a606b2d9bffb2fa310539915761006e6d17515. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/ROB011671485.