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 0x2be3b3ecd4baeecef93d8a109cc757f22f18a27cf95f97ec543641691f56710c. 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/9e3b27ef-1946-4edd-988a-df91a96faa44.json and https://artists.proofprofile.net/proofs/artist/9e3b27ef-1946-4edd-988a-df91a96faa44.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 0x7b375ebb922b1fad8e645babda2890ce60df39ef0b4c2b70bacf49b14af67ee5. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/USA560855052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2892b54f07d22326ea6cc278a18c5164391541d1e82425f045a76c4a5ead2998. 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/USA560855053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79105b5cac2163737f3cf7765093756c2e36e7211602bb40dbe5037faa5149e4. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:38:32Z), 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/USA560855054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2f28797d686aae6e487a4c4b554717c34918344d83311b26c7f422eeffe701. 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/USA560855055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffdb4bcb9b5b6cce5b5898dd9eba4ffc801472392f361e34e3b3dd189708f64. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USA560855056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1c192fabb4b1ac14249204d2e97798afb2fbce7f0493ed54ff587571421723. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USA560855059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f022e60ef94fbada599d03799a11d6830173e3eab8724a0538da075f5b9055. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USA560855060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf889190bb7b75b4915ca2c66a2997994c1ebce199528c3af3f4e04beed090e86. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:33:35Z), 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/USA560855217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1354700f9b9bf63030d40be02bc300f83ed3c78729113c65ef667605863dc6. 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/USA560855221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a499ed7d5ef3180dc1f4315213875e5d0ce8e33ba492641f405eecc3ee99ff8. 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/USA560855222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cdfd4459c522bc5ed3c001cc1df45d10435c1110cdef121dd2e660626c6f7e. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USA560855223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ace9ef68385a9d7090c05b3872c047cfef8b458a36ee0fa25fd72ab5a055c4. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USA560855772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07afbe37ec57cadab8a85bc914db6979424bb6ffaabfcbb67f31eb096096de64. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USA560855773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7ccf148debbcc28e0dc7102a8c28e6942377bce663d9c00547035af74621de. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USA560855774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8d9b90ee865ec7778cae6961bea4c839a43cae90965ad1bc0078253c184f95. 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/USA560855775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ed03ea262466a544f7ad4aec887804548e6b06c7f5d1ebc0bcd488b8502a58. 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/USA560855776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271c2a6cf37fd935c41738a3b701b2278e7839260339b6b6949fa2c542570d49. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USA560855779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5747a06ad4000205adfa5163166b789a05f22b1e822953a47cfd000d9efce088. 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/USAER0710716.
2004 Hawaii Music Awards Compilation Of The Year
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58834a3472e3c3aeef75c8b8995ce125adb17db7ee3b0b50d691427b7c3b1d5f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USAER0710725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd0bcb64a95604daaf18ebd97ade0f040674e8a037a07969111d7f1a953bfc9. 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/USAER0710708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19b4d3eb928084af2450b718b30a7e7a82fa8c4f87ba6c300cb0bcc7d4e7e3d. 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/USAER0710711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa03183d3c3d02f3a244a014232083888c74d5b50dc574e51921276eeeeb365. 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/USAER0710712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd734e5c24078fe469ea91279749df73f34b18379eb3e184624a5ba950375ae23. 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/USAER0710713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02c87597d48f7116587497ce3b936e1fd816e211f01b62b92f8c01265b60126. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USAER0710709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac01a9f2f54b0945b26f7918475640142003e4e1785854850d8f97f7c138d2ba. 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/USAER0710719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1900ea983a30699314b0c2b7c503f295c5405a126afeed6a53cf62be3fbac2. 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/USAER0710715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8cc3878ea0a0746d5b0c2e9cffe94cf98089f51a25dba08ad5a647600bfbb9. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T20:22:08Z), 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/USAER0710707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62908a306cebbaf094ddd007fef75f4bdc0f41f526545e36df561bd765b4ad1. 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/USAER0710705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6917f8132aa4730fccd4dfdf10a191dbd92f49ed894b4bb30e44dbc5cfbe8be3. 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/USAER0710721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bc46b7966e020f0fe3095116824f7fab918d876d31240c202e1e7dba59df36. 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/USAER0710720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5747a06ad4000205adfa5163166b789a05f22b1e822953a47cfd000d9efce088. 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/USAER0710716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b9f37f785cc0ecc229027393209ce7cfeb69c035b8eee0ce1e2d9bc9509737. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USAER0710710.
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 0xa202d31d49f34fa09d984f25b9389a77e64760c585944df989136c2b4c2edff1. 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/USAER0710717.