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 0xc25eda1d1b9e09150688db877a4224fa1f24b80211644cec67f3b07afe83bf0e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/118b8368-a18b-4ec9-bf38-fd82a85f5e46.json and https://artists.proofprofile.net/proofs/artist/118b8368-a18b-4ec9-bf38-fd82a85f5e46.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 0xf663d2e9dcbea0f4a1e7e8943810937b85560233d271579272e2cbcdfe620e36. 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/QZK6H2125772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b345e76276e32c3b8ddd4cdbdecbc6725d501eaf419a1fe73f953892ac0eab1. 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/QZNWT2188606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277715e17654116a93abbfc2110d338596064a27d236e0b6794beeb4b4808818. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZNWW2154969.
Loving you is a losing game - Chill Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b2dc80ca12b6224e8c0bb21f2abbe216f61a02b35a64d1dbad253b95289b16. 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/GX3HH2468353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87d3ea0ff2525d16b4696ed50c1ffc557ceb06e31a62e5adfde522156d32480. 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/GX3HH2475698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f99a1d5489ae4e734f8183a49073f0f76d82b592d563c1b4c0f2703b804e6f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:38:29Z), 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/ARIXB2304811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3a0a8bcdffcf3c5eb28ccc70394c32425a9b993dafd816642f31e029c467ed. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GXBDS2432068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfce82f32429bf26fa270ef158f66d502b8d46dfefe0cb96bb6535f810e1f1a. 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/QZGLS2398207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf8e4baddd568a13d629117f19472120eecad89bb547c56829e1cb304d6ed68. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:47:44Z), 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/GX3HH2404800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc850e95912df068239722b3ed5c49e5548266d7e3940d659c99bad066c2c217e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GX3HH2443209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2d7ba22c58254c5b5fd05ece190246abe260bbbc6ed7206e2e77a492213b97. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GX3HH2449184.
Cardigan Best Part Loop (TikTok Version) [Slowed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8dc4b948c357baa11f642121b1b4ba74136138ad34f0f84b540fd7fe021d37. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/GX8LE2489396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6356f1648e2c3bad3c2e5f4a26f368370829e8d3e7e3da627d4cdabe1998734f. 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/QZTGW2400699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e642d31d13091000f2992cc126637aa5957a9ac9f973d2d93d51a529a86f753. 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/QZTGW2401418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d41e23526ef90140d3d841394585bf3dba12e6badf7cce7dd8c0fd0a801ae8. 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/GX38U2563687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb507a73f6052688206bbcc073532300f0375fd1ee19d1c8e9e849a011a1c7f7c. 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/GX4R52554071.