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 0xe6157d5738270ff32624c3421c5fda5117b2045626700ea4423679efd316ecd5. 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/0c911396-a051-4a42-8191-09e7aa0e6f22.json and https://artists.proofprofile.net/proofs/artist/0c911396-a051-4a42-8191-09e7aa0e6f22.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 0x088da64d89ca77d15604f5afe844c892ff33db7930ba582a862e48ac08dfd132. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:19:47Z), 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/QZPLS2287888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7322993d2240258f7d94a7838b07e81ee4d1a84cef3a04c3b9fd6b0a24b209. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZS632296570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d6143b8fff00127ea118413ced95db67c753ddaf2862854f328cb0e20b6e3c. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZKDK2362706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1259f6214fa8c4cca865bf502e305305d158180284bdf0c82070c8d5094232e5. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/NL8KK2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3aa914b01e1585f1d71fdc4401c765c78e6522d8ee812155d755e79d426d49a. 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/NLCK42231514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f50380357193bbe9e6977c9ef7a589808c168811fa9b8cca858db450791d4e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLCK42231516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0651313d07d385c151e5e771f9ea611068190034424874094fe25f3ba5ca73. 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/NL3WT2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5612887da582299f2d2d9f466b3428d9cf9c92f1a9faa3d86b95926e43cbb08f. 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/QZWDE2423799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a7bd9ea434efed7425c7b35e18a04ce0c4d7246b8ed6a3dd7f48a91e02642b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZMHN2404090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad83c4da30546343013d5dcbd9714d10d8cf87840ffe9016a18b4a93960a27f1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BEE202400144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33545a8e7c76fa441f0a9fa1be26327d2ecccbb07b8b701840952996ad92e8f0. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/DETB32400804.
Progressive Overload - Luca Agnelli Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392e0cfc580171bb02be3abbab4f0228bd85e0a4739b50e6f85149c784097013. 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/DETB32400805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8453af6cadf7a79a587570ca637fac162a130477da6c0c9e6754b8684fd0f127. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DETB32400806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0e9d68612f34e7a328a33b24e840302c864d9106df0d65022ba556333d1a6f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DETB32400807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd102f587841960d94a5a527d5620590ab2334d149389df664f5b75d1bad9984a. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:29:14Z), 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/NLCK42508577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b144ba5b44b8b619c7d523e3cd84edf2cf0cfb28300b5fcbe719f5e09538295. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CA5KR2320882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cc63c2939d9339d8fc957d36417e566e1e8bf8b000a1cde7126b84e3e99ed9. 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/QZMHN2344538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4405a4de7dc4a040d7080ed16ab2925338d90411b52b49c907f28cde47b604e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMHM2308292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8fdc283d6cbdfb6e0755f1f6f9a8ccd3ddbabdab3f54c4cfcd5590c8aa3a28. 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/GBLFP2396884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94126e2bf07d51bdf3dcd17a206b891017e8744449427ce47e4f9ca10d9f5bd7. 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/QZJRC2207737.