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 0x01dded7b900681b97ca2bf12aa29e214c3a989efef900267daf1c79ceabed112. 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/eff0dc63-1fd5-4631-9989-67c67eef8c86.json and https://artists.proofprofile.net/proofs/artist/eff0dc63-1fd5-4631-9989-67c67eef8c86.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 0xad15f23f819dcf58f25fd8c0e5c3eb087abccbdc919dbc517dff8422278c3879. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBKPL1778129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5def464d5d2be9f6f1ac228aaecf4d6db25f48d4e47084d0f6e31e231dbc8f8. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:28:47Z), 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/USSM21901845.
if we never met (feat. Kelsea Ballerini)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd9b6129c3f56614f400492b07d6a66c2f5571a30ac4256ea2d503d4ac51cf2. 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/USSM12006250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca192e807f6e31fc7f81fbac4631cb9b0e9bdbc245e976b1848d40064df106f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USSM11902691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91382e5c491fbb3bab74f06147ffab8c61293d664cc753783feb1177e7252e19. 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/USSM12000198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1610c600e0f0eb84a5d371d2c3b20ceb877c164fe8100707c49ebd1cf91e90c4. 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/USSM12101130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3d2f895a28148c20b4fa1d9635596f5850b72b5be533c2d428969cce6a586e. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:39:18Z), 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/USSM12103000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc565df3ab02d6586c9f6f50f9e40732200d3f1f43085644dd8eeaad1d89daec2. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USSM12102962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5eb9815acf025639c1ed574f283dcd43f5369908ad8aecac9e2f9600d9d6234. 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/USSM12103002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3308a6c16619bde77729e57895ca5a4e3059961d59679c7f47fb86332dd5fe. 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/USSM12202927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e518dce3026dae27b22de6385d95f70d71db8a5475b3165f529c8a3c419294. 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/NL1ZN2001023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d0edd826eacd080031afb53f9249da3f972e4bc1f92972b2af2e43a1be55d2. 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/DEQ321900300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6e0728dea5be9fb993b789705b2204550ddff41b73be4d23e0a70a059a1e8a. 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/QZUCN2200010.
Wish You Were Here (feat. John K) - COASTR. Remix
Wish You Were Here (feat. John K) [COASTR. Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191686a04032934259f375ec1234e8b6f5ba849d959f55222ee90b3f64aa7e95. 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/QZUCN2200153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6e0728dea5be9fb993b789705b2204550ddff41b73be4d23e0a70a059a1e8a. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZUCN2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6e0728dea5be9fb993b789705b2204550ddff41b73be4d23e0a70a059a1e8a. 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/QZUCN2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056c2c09fb4e7db1dc98466b2c6dc4eb3a4dbfdc18dcd80b2490b689a2f921bf. 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/USAT22006586.