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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5278db64c763d1d297c707822b7eb4faccc34c8a19a3c95793b0ca7d974b7298. 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/78d8db62-15cb-47b0-b5dc-c3eec37fc394.json and https://artists.proofprofile.net/proofs/artist/78d8db62-15cb-47b0-b5dc-c3eec37fc394.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7adf3dcccdaf0a607e308810a946795beab822796737735e5b8615ea14a158. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZHNC1994158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826e529bb31e9ef74d81a797551efb2e316cbcf6e634ead1f5419bf9f6415870. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZDA72020247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88affb3704e8331e860cdb74324341829b0ce67ea38ccadda995ac239c94cf79. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZDA72020249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1003efd669076ef585455e22ea8b16948756b023417a9eb1efac8664be4e91. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZDA72020250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589144811c8f21db663db23a6e5531243cdade064dc6f6974b3d957b37f4eca7. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/QZDA72020251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aec08ae1ea8c04af506a4d04c96172e80ea1d08536cd9d3a5185d95618e87d5. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/QZFYZ2221504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d747088a901d3b88ad8de859c2db321e63e4fb2bb267bd8e51af739e5514ac. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZFYZ2221508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a0e0d993cbc9673bdc9f5f9c841f4d586d0e21ab671a9c04320a6c63b64540. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/CZUM72201010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c125e3ce18d41b653cac907566f7aecfbb6d05a8ade029bce7ada0a1a6e2ea. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/CZUM72300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c1758daac9e151a521a62e743099913259e6d78c55f1e5e60d51e42cd37b29. 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/CZUM72300525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2d02243e92bc2fe273d5995b05bfc4960da4af7b59e1749c97835fddc34da6. 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/CZUM72300526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8d5db83c617a7da846b7b326ba708b7e8d80374ee73cf0c41b39825423ef2c. 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/CZUM72300463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e23b92d75993d4a432dff0998127818aab2a9463145754482518d7fe0a75a3c. 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/CZUM72300527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5298a24a198892d6742172f3235d87d53e0e201257bfa1661fabbb985db80ffc. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/CZUM72300528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdd279fbd0bcfe0cb9cd57309d9937788a92df1dc1ae2c4ca8339bdc096cb1b. 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/CZUM72301171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bf2bf805da30f87536b5169593604f36472a04e207ea2de7f808a43077f9d2. 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/CZUM72301517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51d444265325feaebc31ea38630a9f764a13f7f38668dc2f36eb8606ee6758a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/CZUM72400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9548e02646eb415ce6b8560b0af962b3fe076eed90343c01c207075de6eab109. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/CZUM72401066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7bcee5fb929a7765535e4fa38ecf2dd475b7e28f301fd4a7403c83ae407303. 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/CZUM72401196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01975e1a60dbfd9523108213f42317e32608fed4e278510523121798c2b7728. 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/CZUM72100388.
COLLABOTRIP (From MMOriginals "COLLABOTRIP" Show)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510075bf1929fffbd2830507b6bd303e5e9dca5eeadf3f90f569d1b8e03a138f. 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/CZA163306143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85c5a3a02d3b8b3a90dab8f9a7b05afcf560a6528319afffaf048131fc87592. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CZUM72100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa757d7880e5021289086807e84392b1dbe01a4d4f6e05ba17ddbaffc811a512f. 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/CZUM72300765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b21d62f8c0d606d1c3ad49116673ea55d9cbf9dd0f2de27349ad0feed3e0e6f. 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/QZES92251049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a0f06c7caf27feafd3771578f4e9b82244bc061affa90ca993572d789e6d15. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZES92162123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641a2f9eb2900ccdfb20c188d7f4cb3786fd5a9cfb1c5f928d04b900e8408c45. 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/CZUM72400268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847232770a3e7ddc5bcda48f7df0b29a7749955a722f8f633db8fc70ccb05d92. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CZUM72201028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45552ca079079bc219a5d625fe516dc7f4c0e83dc490f3529735329c9006e2f6. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZWDW2401171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8429c45239c42503e99add9798614acb5168eb1b97bf1dc3e6b45760d7dcf96d. 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/QZYFZ2343047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1f7f70094a676b1402bd9260e4d2dd0339b4d4e0f8174f8cbc7810c2a65ccd. 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/CZUM72100720.