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 0x488261a0cce1d7db24aa0ec2adb2af637649cc2226c00092880a5bb4bbc54c13. 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/b18359d3-e42c-4097-b3fc-7fdff1aa4077.json and https://artists.proofprofile.net/proofs/artist/b18359d3-e42c-4097-b3fc-7fdff1aa4077.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 0x57f02098e5db4d444c930aaefb393dcf65de7ff2690ddc7c603f7c531bb87c0f. 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/TCAHW2423983.
Oh Kalma (Lagabog Instrumental Reggaeton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c79ac705ba380eb67fd74ac6a3d77aeeec504d0c56f8967a6d7ee8f7eab1d6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAID2423576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049c17d5d4025be5d5b6d7d7d6557e84b018ad825b5c732180968613870b0830. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCAID2432864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d4918b26ce41023407664797b4951ad8a75442c8db0e85d1d0f5909a676409. 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/TCAII2410296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd40922fe8f9819f385d0113041f4d29d67846d0fd4e99fe1b6ff4dc6b1b031. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/TCAIJ2467554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10b336cb048a56f4b4a31fb786af71161201029021ed076e5f1a602ae84800e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:32:39Z), 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/TCAII2467727.
Disco Disco Party Party (Thai Break Mix)
Kayo Na Pala Ng Bestfriend Ko (Budots Dance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda51bc6a0334dc9c602eb0e5ad8c87041bc0aecd77de42ba74240a043b0bee1. 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/TCAIO2402211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9e0674e994f5289d03a2e316674f358ece29d5a9db7b5d9c29d5e31e105951. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TCAIN2402239.
Kahit Anong Butas Mapapadulas (Thai Budots)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd060c355842d515ccf12a6156b85e2537167cc396b00572ad54e9d276535bae2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAIT2424886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afc1be454a2525e6dba74432a3001710e6da2b2b45d6ba8fb40c076737e243a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAJL2556813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd5c05d73c2e2c2989cb13c714db6b1d62970c388dca41317252099845d88dc. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAJM2555346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24b3fad4bee0cfbc48f05b9dc91bc0f1c5d14a9a2c75118a8c8e14c1e2af5a1. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/TCAJQ2590406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd665390ac102bb4d5475cdfdbb525b1f38005edba268bc07e5373dd8c51abd3. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:06:00Z), 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/TCAJX2586844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570ba9e2fc3d31efb1e0ca20a2215f1ab95bf4b0754aa6ad45d02adb79f2f188. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:06:00Z), 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/TCAJX2586897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30903806651fa289a08da67b14685e93b95fb7f8d1db600a2c5c363baec4f424. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QT65W2562256.