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 0x1aa1bec694980713def274472887e19f1161535bfcd7ea46ef5aabd75fd7e9e2. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/506d9a06-593e-4b8d-a476-4db00bd2ce13.json and https://artists.proofprofile.net/proofs/artist/506d9a06-593e-4b8d-a476-4db00bd2ce13.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 0x3acb7312bf4f2e0e26a87e6c38d8efb79bbb755d3293c37a187d3a6cd5bf39dc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USCTT2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674ed08c3348418cfe15781d91c30f2a28e38945ffb8f587d14f2d2579073ef3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCTT2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06943897ae27aa24badc508822250d5e9bff7936e60980e826dd9ebf8824bf3e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USCTT2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680d8080811ae30a06f56dbdb56cad192a9e0242ff9ea67f2fedbc0db3dd6c77. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USCTT2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe103ef3fb8420305ee3d72d94a21d6bac40194d6d757f1d3800c3cc3f5f08abf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USCTT2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdefc0ee0023ee8f1b7554c8cf1a036d047dd197cbe44f54f28054822ba5fdb0. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/USCTT2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9d687dcd15b41f5679de612fdfa573c09a64dc92d61107cf98e27b7dbe5d80. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USCTT2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1c81142434479022976b972d4ed58c3203f62a207d9f88d7d9cd3a14bbddce. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USCTT2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc3b71b6e5e94e069549ed8999d1be877506e8da76243513b0852256fd3a8b9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCTT2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8395e08dcdb65ee6fbe0904e7672ccec56d3305b056c8a66f4ebd1caf5d4cf1d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCTT2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cfe24be7719ee8b71f1fb54276304519fcca74e59fd293ab4e33dfe0ac7981. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USCTT2100006.
The Battle is Over (But the War Goes On)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b721f67df53de14fca81fe52e94d21ccf38b3a555439b0bc29401156d8ab48b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USCTT2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b1ef196d4f39625e3b47260cb6188599d9438b4d376c139f04eca23981b64b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCTT2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1275555ed37521a87d88473d20a30e6d2dd2081c2dda77e5bb303b2941f3f9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCTT2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43f8b7ac47c85161ba21bbc1d70cf59d2ecd0bf485059ff076c4b7bb9aeab83. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USCTT2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcae597131851d4fbeef4014036e74363cabc964df918be97e8293b49eac204f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCTT2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06943897ae27aa24badc508822250d5e9bff7936e60980e826dd9ebf8824bf3e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCTT2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe103ef3fb8420305ee3d72d94a21d6bac40194d6d757f1d3800c3cc3f5f08abf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USCTT2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3acb7312bf4f2e0e26a87e6c38d8efb79bbb755d3293c37a187d3a6cd5bf39dc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCTT2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cfe24be7719ee8b71f1fb54276304519fcca74e59fd293ab4e33dfe0ac7981. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCTT2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1275555ed37521a87d88473d20a30e6d2dd2081c2dda77e5bb303b2941f3f9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCTT2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b721f67df53de14fca81fe52e94d21ccf38b3a555439b0bc29401156d8ab48b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USCTT2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1275555ed37521a87d88473d20a30e6d2dd2081c2dda77e5bb303b2941f3f9. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USCTT2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954c0fd898d2e289e4c211c6e2669a58ee9f48813575b7cf80b359dc897c30d4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USFVZ2391215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a5ab2d71dfa794fe6e65f1d03bf2b0cf8f9bbfea3b82409c8ddc38081cb58e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USFVZ2391218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c6c94121d979f85836d402d054fbd2e4d27ceca95276f8c0f639a61e247f22. 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/USFVZ2391217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e859a4086e0c6092be90ffa75b239062ce2f7470b08575ce46564bbb350aa79. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USFVZ2391222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf240d0469fabccc7e7ae69791ae50eafa2d4690c2827c9928b86e9f65297afa7. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USFVZ2391223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b4034d7fe1df40a66ce8199df2363db86a79b42f991106004d94802e273c88. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USME32300798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2252f249506f98cec7bf76983033fb2fbb685274234a73939a024c39061602. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USME32300800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0471df01bf09ae3e8efed6e3a81e635e053433c3ec1758a639f142b29009757d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMZDO2012454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeeb8ad8c071ad87a28a7cc14f92b97b1a210b7e23fdb35e9940016879ed4aa6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMS3K2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861fba7555c3ad69e4afe646fa942b85190fbdf03fbabd73717c6d4b298eda1b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMS3K2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a69a0b486d584cb592af1b14188a1dd28344016888f7d20ccc996adf3231de. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QMS3K2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a60bc07bc0d7ec73d8ae56f8c86ab635a44adcd70cc43c43799515fb5163127. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMS3K2100008.
Stage Fright at 50 - An Ovation from Nashville (Remastered) [Remastered 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a5ab2d71dfa794fe6e65f1d03bf2b0cf8f9bbfea3b82409c8ddc38081cb58e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USFVZ2391218.