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 0x512e0932cec91afdd2b30a092ec1ab83a38dd506a9ae489e91c7a8ab8c9bbd7a. 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/cc0203fe-3625-4ef5-a04e-5b46a64658ec.json and https://artists.proofprofile.net/proofs/artist/cc0203fe-3625-4ef5-a04e-5b46a64658ec.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 0xb4e08affeb24296a8c4588afa5d52ee240c8f696077faa654bccf3877532dc6c. 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/FRX762258907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5cb213a3a510ce0028a9b78a7e07f0db8c50e4883feb90d27b3607c5d7d6b5. 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/FRX762258908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d75290d2b5297f8f2f95bb9e6617b522223ccc9e9424c789c70dc5bfd31fa88. 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/FRX762258909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d266323f15c5c37b0f9575a1f8148158607f412056541ba57e9abc9f1c24d2. 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/FRX762258910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4d7c6c6792f264b9a2233969b372b8a08f1c18bcc59642b2468de074149e60. 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/FRX762258912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb55a5eb2d5e29164408e6756bb1d3fd77b6a10b5df201b1c0c368111aebf5c. 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/FRX452268147.
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
Working Class Superstar Vol II: Jakarta Soul System
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf6011a12fb0c5c758babb4b5f06496e6fccb2b9447ea2345642af48122f407. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCACQ1635491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b09a71d068f6093685c2d4ee10ac82a06993ad27e98cbd5b2c285688fe12f8. 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/TCAGA2230175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbddf65013e1eb746602d7af12b700ef5415678d7edcb7c68725e8e4b2d45787. 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/DGA062432393.
Kembalikanku - Piano Version, Live At Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2814b93af590bcb1fed7142a1ddf3f8d295ec2c5969ed29eb08167937f795d0. 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/DGA062432394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd987d1986266a41efc45402ed95b5a57a8a3488cedfea22435914f45de5779. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DGA062432395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94b513b679f0518c2cb3d0f55c317fb0699227b8ee3652b6b945e822e49ce85. 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/DGA062386964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf247d11e80a2e383a7d52301d85d6242a63899a6af9b3ee3dde74ca94f098f. 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/QZHNB2220633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04a55843cd0ad11e2befcef42ae3534393e9e39dd5405ed4ffaf69112734438. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR59R2125821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6fff39435bd8f180cb22676aab183e4887ed04904cfcc5fb656dead6bf9e87. 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/DGA052349016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d49073a771d9954b7ce6b5e90cca5418155ffb512d211c772a41ab11e335a83. 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/ID2DY2300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d172a94008ad98e6084917faa3dd1aafa688e0bacd2870795fcb87fe50ef107. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FRX452115717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a451322b1c25e53e4432cf4af18e85c31e3a323e0648b2a39fda9db4b282e3. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/FRX452099546.