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 0x710f68366a70ca752f02470c964ba329d85e0ce3729921d1cd3b1f2540ae06d1. 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/5807b519-720a-4a12-b3d2-eccfe6656de4.json and https://artists.proofprofile.net/proofs/artist/5807b519-720a-4a12-b3d2-eccfe6656de4.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 0xbd0a185eda5c0e82d56cae446324d0f5caca40a622f86ccd430e769141badbbb. 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/TCAFO2129412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f94e55eaade616a01168a3db592e3f3fbaf420b877201eed4a5ac1202ebc9f. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/TCAFW2123704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6d1aa2feb45bc2f62c33aeaeb45597c7a2adb4770d659368bd26550c69131d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAFY2193905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cdf71743cba79f291fd0c1d6f680f8688457e1f9d5cdd37f467f003a8de8cb. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/TCAGR2232661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f220701d3374a84d4687eb74a0ba3828e5a15aa3eba583075d46a073a72c355. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/TCAGT2311145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe743486c4afdc7eb8c8e56a3a39290f583ef63a82028788a477a038625c616. 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/TCAHD2327062.
On Matters of Birdwatching and Obscure Hungarian Cinema
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1778d497332d9688d520db808d5c35d8740f87588f590667a8e98458f6d0544. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/TCAHH2382525.
Watching the Girl You Should've Married Get Married
Missionary with Heavy Eye Contact While Lofi Beats Play in the Background
Smoking with the Broskis (2009 McGowan Park Flows)
If I Told You That I Missed You Would You Give a Fuck?
I Wanna Jump into the Blades of a Helicopter (Sometimes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6342700112153cbcde7a7fd557bd146d124d8c0ab59dca7e4405658a702784. 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/TCAHT2493185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6c1de2caf00a3073cc6796d6c78d12099515552e8f10c0d7756f7c144bdf22. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAHU2456889.
How I Got over Katie (And All the Others)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44263efa6ac20791fcf12283365530ebf14370daaf8953482626bcc4f43c9991. 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/TCAHY2449384.
She Said She Needs Some Time for Herself
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a8e1dbd92be698958167e8551616335f3a8216c5b12ce945cbee9a748d5c2a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/TCAIJ2401589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59815eb1eff3b85e799cf3150c0695abfb57d34bc02b0b0b55888ebfceb329f6. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/TCAIJ2422651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dae94d839ffcd48a0f4912b51874e0190c2c3e2e496706384be0bd033799b9f. 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/TCAIH2420089.
Dreams of Flipping a Quarter Pound (2011 McArthur Island Park Flows)
When It Was Time to Fight for My Soul Always Remember That I Fought
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5794728778a0b1e3d4583d2dee506857fbcc9306734b8d831cedb879265129de. 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/TCAIU2484647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7564faf4284a6c2b1428b4c5d462dd4c91a5968ada5ec421901f22efb7897722. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TCAIW2440310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbeb3f40065bc510d2c2f1096c89bc043ad1d4050c47f84fe79296fc88ba1bc6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QT65Y2568895.