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 0x67e17cd6b6c7f66847078b961a97dbcdfb29d4064585d55efd34d77ec5bee25f. 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/2e7bc485-44df-4909-8743-ea070c7145f8.json and https://artists.proofprofile.net/proofs/artist/2e7bc485-44df-4909-8743-ea070c7145f8.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 0x742a931fd2c340805bbb338c53db1fa9833526b05521ce09b4d6054cc4b2daff. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/TRAZY1600032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe804ca328ebfe76b269cbcb66d292f2f97cdb62e9f84c4ab785d201964cc5560. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TRAZY1600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b00d71b1224ec03638511e44c96da7089be1248668a9b89082b55645d9ed5ce. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TRAZY1600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd45487341929153adfe117dc06548acf842199cad9b79bdf1032ca33fe5f4d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:09:33Z), 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/TRBDY1806601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9610dd8d4040955f7f9f6f942507db88da05ce256c5561c061d2994ce508ef. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:30:50Z), 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/TRBDY1806604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d21c0bc2f9f74315f79dd6af90d2c8aadba6e5d081775f07b38453317a9fd82. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TRBDY1806605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183a051d3eb29537e4c9f2d00a739bfe186aad7e8e93a6558322d9af1f65d7e3. 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/TRBDY1806607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7785564f69c0fa10c3b21f10d64901862b6e3503e1758c5e048340416dcc69fe. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TRBDY1806608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7f230249e015698331aaa742818c11efd16b306096ae429929659941a36999. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/TRBDY1917202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0029ddb6b2ba2544f5adc90fa91f6838e1e1540561c4dd2b8f821d7fba70d7e9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TRA162100416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e0e3e400580cf2a80cc0e884b0a88d5b1aaa349e1cd16b4df82ec90f760ace. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAFR2183494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b0a38ede278666a392a23fc603e5b6ff67d9dfc30d9684dbc414f7dd8523a7. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:49:18Z), 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/TRA162100744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe893e5e3062cf6fc1706fb187527266ead098b3a412175cf2a3666f79400d675. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/TRA162200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e712b14b5f78fc6ab0217877c45c7fc308e78dc2ff480834745c392e1e326b7. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZHN72290246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6761f9445ece1897cc5ad6a6672526c3bccd286cf90a698e96af941493f8224e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZHNB2250134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb054577824bf9f81afd1d1c36bb45e29a245bb2eecbe723c1333409db03181f3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZK6K2265076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0d022bd154f4c65dce77bc8d473f7be3da4bdce4f7c1ea9a5f86d3293687d7. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TRCAU2100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fe14b3321abb650a4a56576e17b380965c5f181e52c75567ea0ece630cc59d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TR0012300194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265d8cc49499fc71183380a0086b8b728ef2b74e4107127ff39f84acfbd279ef. 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/QZFYX2450317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98df79f0b897657348d7583c43416bc960ebdeb428fda159fde650ec2dc1f070. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:22:05Z), 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/QZDA42465204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc737d48c8d30565ffd00cd785dfcd7b1b62951fd13aa7944c6377a00cd78b428. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZHN62414611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf195dda1213286be1ca2d398c59fdacfe239d359ddc6dae57722ed6abbfefde2. 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/QZTBD2414811.