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 0xc6d7a227e27c5abaf60d9f8b2f0830ae4066022a86abd2860609407b6c8271c3. 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/f33afbd5-fd32-4d7c-b93a-0599391f811a.json and https://artists.proofprofile.net/proofs/artist/f33afbd5-fd32-4d7c-b93a-0599391f811a.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 0x0c532822e36ade2a6b7affe7e74daa6ca36d03776e014171154fd2c6973c1ea3. 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/QMDA71862998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7374f90557a714d60cf5347742422d34dd08cd6872a5c393edc504b24e59a43f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQX91803136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e08f9a8e8d2494eb39333a8e24296923878094de11cb440eeaf1158df423df. 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/USQX91803137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335c5acfaf092941ad7b892d38376b0d394cbfa761beeed9689d7a0a104f1628. 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/USQX91803138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c08e68c3602713d1db4e73f3b9ca61596f3789e9125ba189c48dce4db456b7. 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/USQX91803218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96d3d829fbb3b8adc7c020815650fa2f6a3d95951d2ca0f8fbf48e4f02a195f. 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/USQX91803361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68c4084542a35a88b69537f2690df5188b8f27298da8b20a8ee9b35710adac5. 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/QMBZ91420868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd662e9f4cf79b1cc8ca523c4fcbd9eb0d7684509b3e89d9464fc86b745c922e3. 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/QMBZ91420874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf59bc2b6271d48b3548f9bfce78e0b6f9c638f0b48b901489bd5f6f1a4a2ba. 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/QMBZ91420875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f688aca52bf4a003971f45518287e3ad39095db2046ec45981325e9752ebe7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZLL92566165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c03d06808dbdb6a2687f631c8806712adaa8653dde5c335a66374360e37f1d7. 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/QZLL92537405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d82360c3ad0ad2a67f952a27d2cdeafafb6dfec21d3ef930d6bc41f036c62f1. 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/QZJG52259838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1a80cf3b24d3df05723e09332a80bf22393244d52fefe97ac11ce0c4b31a09. 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/QZMWW2113332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a6fcbecdadab3ea2b98faf43f835cc5fae752895350ac3a6e98db87e571588. 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/QZNN32159030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4413cdcb1c5404dd9cdd4bd2b57bba07e13dd429d492b341ec5f20f3e76928d5. 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/QZNN22127649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe817827e1815c19a861baad9b4b93878d2aaa0cff012598861ab8ae813713b62. 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/QZMEV2053173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8030fb8c213940208eb8f71870d082e1f3af3e1cbc2d318fb6fb2630ac6a7d. 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/QZ85M1984035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc006b0ff753b3b96d91a92a2e2dd199c28646fd8e7f5c5bf407ff00f0711a23d. 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/USLD90813079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610d0d119e6e88fb43194aeef21548f799f1bb4bffa42bb6fb70ad6bca92e491. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:25:26Z), 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/USLD90812941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711714c194a68dfeed49473126c4c027efad4bafd0db23e416d13be58121ba99. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHRC1900436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64ba463badc0438a579440ac2f03f5a4a4e9ab14eaf11044a13c70ead72b83a. 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/QZMEV2093589.
Glory (feat. Mez, VanJess, ICECOLDBISHOP, Ginette Claudette & Gwen Bunn)