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 0xfe4956afff75bbe51fdf52e918faa79dad7ff9d426fcf3bb1404e899fa4ebdb9. 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/ed4ed478-da57-4290-b71c-953ec2ea0e0b.json and https://artists.proofprofile.net/proofs/artist/ed4ed478-da57-4290-b71c-953ec2ea0e0b.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 0x8cabf9e6c899f1ce8adbd80b9bf7bc72d5d9f6caee4c98926e9ba1248bbb0607. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/QZF452074064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230749cb78f3f93a3b094a3f9b3ad142bebcc9483c0ff73cad83d06640fbb425. 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/QZF452078824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807ede9c9b95cc64f5b3ae35bcfb786350e60e84ce3453817b685f650fa270e5. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZF452079903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55c7435767b566b172ecee8fb1e078fd037bbad9e4a764943aa6c82739acfed. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZF452079313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1258fd5341a3d46f3d3ed901cc3005811f4c6542a92d9b9939e2fb130edd6271. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/KSA012182432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6576645ed3dbaddea221180229262c4d72a4e73645ceda9ffeca6fdc6a4b378d. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/KRZ292085517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0782cae7c8149b897fc1f98265018f90436ab65b59e7f9c42f39516bd6f20952. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/KRNAR2233120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf799337269812c4bd2a1737963e3eebfcd4e86aa7f3f705b61c881d3395abb85. 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/KRNAR2233122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e6c4eec5054b3d11e9fbef2d937523da03cc0f8c8db5d074b48e0cbbfb2ddc. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/KRNAR2233124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c433fd6eed96ef40d97fcbe0d660eb104d694f05ca7c3fa09b1c532d847dc6c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/KRNAR2233125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57412288624248fafd955f56bd874aa4d003c975796d318878dfcd86389c7e04. 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/KSA012248182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb365aa8fdf8a0c35a6f8bf33dc54392ad5ee3a46447ec5b448e7e1d35c2b5114. 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/KSA012262131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d598d52e2360f903fc4d76ed250ef64c8ab830f762aaa9ef29de1f5d9a3690. 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/KSA012262134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8396753c896a8db845af3da762f7a3e65a05915514334f6dc1a2b5748398aa2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KSA012262135.
Tell Me That You Love Me, Pt. 2 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3534069395952ba73480a93fc5c500ab4fa53fd9efcec424fdad75a1883966b8. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/KRA492301073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8440ed753d75ebf0a6f3165660e8f119b1834614105ef0c6c1ad2e9621a4a80d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KSA012293079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634c612b4730e37d4d0c083d04083976d9fa81264db0ffe8fa33ab2bd176af81. 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/KSA012300230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3587972b890928ec61a7d87dcf47ed3a2cd63396f636b8c0d7b9180b0b22324. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/KSA012354895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e0234c90538dbc2b6466f2a9021ba76b52082330a7e01be8245542e3b72979. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/KSA012362490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9ff61cf9e88e3fae20ad3c30e888f6dbc1a1f59c6309d7ecfd5d11308ea354. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/KSA012362491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e57334279c2ea0fff8f25f46f560c31935cb39a2e76cba537e8450f043b9bd. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/KSA012375180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9cf1992f36c424508c5e56c22ac1d7b20d7a964cf7e756706d50c86f121dc90. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/KRMIM2266454.