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 0x0fafb06e67fbe13747ed08ffa5626bb38c6d61ccdf80ba353a2c157ed102a077. 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/de844c04-1987-4f31-9452-9370de95ccdd.json and https://artists.proofprofile.net/proofs/artist/de844c04-1987-4f31-9452-9370de95ccdd.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 0xb66e10f5b434918151a3754286bd532de8d3b4bcf13c38db3e0a13e11eb0b01d. 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/JPP561101011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abb2a40e669cbf19534588be436f03791aac3317c9891524a22d5a0a45d2339. 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/TCJPK2045396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a0aeafb40cc821b659ae88ae0f4133d3fbe22d6e5e1d4a1d040935b0642256. 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/TCJPK2045401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3872c237c7fd1462467a23999b43ed33170debad9e87c68037c2fac5295419. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCJPK2045402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fc35f693ad924debbaa3d9c40658c435b5d517d804f0a57a0f27f65052a3e4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPK2045403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7364455dd27c7fcfa169362e2c353c931f440afb287dfae9d96c9af0d217a16. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCJPK2045404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca8e208cf7922bf546e457aeb59b0bfab176d0a17009d497e3d7eb19134697f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/TCJPK2045405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94675ce089562ac4008c522217521d06f6cbc131f426998271ea03d2b42973e. 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/TCJPK2045406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32368cb54687f2170902536cf79bfd588af73cae14386ea05553a007722bdd31. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TCJPK2045407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2789206f3d36e28f76172d95d3a41a99406c86b490758104911884ca668a6c3b. 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/TCJPK2045409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383a559bfec31024b615b71d4bdf49d1f8576fa33ef949b03b5fdb6ea742db4e. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/TCJPK2045410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd87b950617e6a3ca9f017e9d0bef659a79dbdfe52f05b2140bfaaf7d4fd501. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6F2326574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f7886a2e5381d7a540d3fdf749085065340fdf33da39157e639dfc33693f93. 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/QZFYZ2433987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6419629c5fd54eafe665d241555b6af1e3edeb41fce5f40c7a7e323ae754a4. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/TCJPF2558834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03df6851ef4ccbc59c64ef216ff67a751d3aa2cadf78cf43a292a4f2510d7c9. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/TCJPH2503517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03df6851ef4ccbc59c64ef216ff67a751d3aa2cadf78cf43a292a4f2510d7c9. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/TCJPH2503517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c09b27d60ebcb55767e5ad726f26755cb4c0f75a1f38f0823c0a2dcaf65e45. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SE6SA2545035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0c747ccf89090968c283a84ab5e8d29ae0caeb4e8dc32145f34b833b40ee33. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCJPK2058142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c6e25edfd18872071b53c0956fb8befdd7d9778b2142642d4cb8dca187d06c. 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/TCJPW2316793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003d9608adbc670fcca877d8c0bbee27ba162f7d3a435bd71295fc096ad5735f. 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/JP92Q2301785.
HARDCORE SYNERGY 2014 Anthem - KO3 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8ccff2a0b1963203f118d018d1e67dc15c732838dc23e47db9f5827cda3068. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBLFP1518388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fba3f5d8fd8c2c6626cc52b54becca259109cc85885b269cfadb6285f04100. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/TCJPR2246078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01196fd9c0cf767deda2962dd6a661cee1b4291a87f523d8e00a7cc239c28693. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TCJPJ1947418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5b2673c4e77be15e342aa9d7125c46db34973cd4773579cbf842983ab43b3d. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/JPP561100771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a55d38b6e92128db2a244085de43c0db5e3720fc9ce1a3d2c062cd01fc169d9. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/CAHQJ1991904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14746c28448561783322d847c3f0373b45b9205ba951ed8caa8b53bff95f34c6. 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/TCJPT2251475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf474a472c4a4f1b1774f9f09355cd15e8f698ec89acbeb3e0118525a0e6ea48b. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CACWV1949787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acd1fbb15ce8d6723cea3ff876b7e736a0e85a4b0ce3455d27f38ffcf9e2761. 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/QZMHM2364798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb7a14db52fdc250e9c2982817a5987a5f5ad0a0a3bb1f3ab706338a9915ffd. 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/GBLV61929962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab800c3241e5c4cd3e907a637842fbf2e910891577280de861db21f95e59f989. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/SE5752499024.