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 0x351b7a6fab48f4bbe8b05d29c5647361bf151627ed2dbc745af1e695161f83b9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c59ca109-8262-4bbe-9adb-36513b816eb7.json and https://artists.proofprofile.net/proofs/artist/c59ca109-8262-4bbe-9adb-36513b816eb7.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 0x085d8f8e5d90c3eff66ca08e8ccbfb8acf2c37478a96e58ff9323abbb803a360. 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/USMR50440294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea6e2c756127b40862824023222e9ded87a365f86432c183d230a37b80111bf. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USMR50440296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ebad370a46aaa9081e3f869beb081afc9961d6f21bea336a42f3e65bc4c9bd. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:56:02Z), 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/USMR50440301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bcc46fd1ed4f2319f2f54d2c401007256ce153af6ee2c850b8ea303db79354. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/USMR50440302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6e27fff5cf0239f09f3c87e6d6f0a3f6c454bc4b64973d2c4e8de69f78c100. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:21:46Z), 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/USMR50440303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a22cafa25cfdd232dcd22903463eace43e3ef6ed2f6e2764818f5e7cdd0f36d. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:59:17Z), 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/USMR50340001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc7867bfc4c6b46b5e975ca08212ddbc46201396d6ab70b7a71a530ccbfbcba. 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/USMR50340019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e0b0c4572c8d1ae84cf5326268af36fe6567b3f7910e258cbcad58b547b192. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/USMR50440234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713d3a61e6d7f8d35e6921cfa8cbec60b6643e54874b3c2ab7d8e4c1143695a8. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:16:32Z), 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/USMR50340049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcb10a50ff87ea7157f4118dde98fe2aed7c26993c2ae230607d42997a65755. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USMR50340050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73437569ccc8ee0d8815e4ba928edc288aadeb9d8d27717592f2d608e5eacd8b. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/USMR50340051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d19fc36a5c85605ad6205bdfd905764f128e2730487e504ab4d8e2fb242a52. 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/USMR50340056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f876915be16e8d4747bd280609d4faea77b6093eef70493bcd0bed865083cc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USMR50440263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad51ea9eb46ffbc1f18fe2bd6ac41f328ca0810719c3a422b4b5311f83984866. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:08:51Z), 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/USMR51842770.
It's Hard to Stumble (When You're On Your Knees)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38e85eeef0f9a6670c808fd1672d613f60c064bfb03892cfc395052906b5bf0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USMR50440254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b244e20b8cc5c85a33f36b260c0e498ff79d78a1dc723dc322774fdf4d0a17. 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/USMR50440256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6cdd90f2ab3b5115ad543aeb25b852fc93beb6b4837e4318c263d8c86293b5. 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/USMR50440259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed057e299c27fe59c27c8531a0ea60cdfb45616eb657f8eca206f8fc4ce39bd4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:34:52Z), 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/USMR50440285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46760a53c6ca2ab87c8eeec4b277ca7ab7b6b8bc1e29d829e27e8e3519fb5789. 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/USMR50440274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fa8ec6e0530ff82fe5a262de9da4cacb12e22282c3785d3888a0e0aa857f57. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USMR50440276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113d800f1d6a5a58fed6c6a24d2068690e001ac210706958d0ee77f7f665edd1. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:42:46Z), 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/USMR50440284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5632090ed6b67cbd81754cf922061302dcf7096b6489a6cb95571a874b03df98. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/USMC17347893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c112411228fe4821ab98165a1b9c0692e110d7601aa1ab346730cd6a99bd66b. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USMR50440243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961cb77ff5d7693be32e59594b3892fcab6c9de68139dd5331c2962a89383f96. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/USMR50440251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b4f6753f6d4dfe12ee780ac9124eda3f55e29d4a6c2436f03de2ec8c45716e. 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/USMR50440219.