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 0xe459e1c671a7c58c10ecb45eed1a7df13c76ab158a63ac40230fb0f5fde097ba. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c937724-312d-4be7-99b7-6f68db58aa2f.json and https://artists.proofprofile.net/proofs/artist/2c937724-312d-4be7-99b7-6f68db58aa2f.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 0x90c0162ee1b9a2dca34ee3cb54c1eee3317a879824d01ca32af4ee94b9f418cc. 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/USUM72021455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a4a7735411ae82bc8cbe91d688f7aa65e3c390c744c0cd9e62fbc87a6f5949. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/USUM72024415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed538884e7046917e8987662532cf5bdf04e08f3a97302bce27e1ee16d7d2cd6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUM72100165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03fe99e1f4bb8a9ff109ea5db7833cda8d87c17f656914385c18533e36f8c5a. 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/USUM72100172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccb700ece045957b4e839dd74a156a70ebded2936668210cb31eb205b4d873d. 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/USUM72100177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec152a2aa47396666351b372ffa07eee61cc0f5cf6f19ff0591b1e08bae0389e. 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/USUM72100198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc569fd08f008adbc35f20926bbcf7d3db922fdede93d0e088aea7e5ef63ec9be. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USUM72100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907212d8fc284923add4c3b1890ad2db43ef2e636e3b258d9282f560cd93f1a7. 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/USUM71911124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67556126b1008a6964dbad7ee95d6c3663088847400cfa4f8b54de1a7c4139c6. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USUM71909707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f28db130706b874ce3090c3497366186302489bb87f2e497ae18aff3c38da2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USUM71911818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4b5a7d7db2fe9525068245fb518a2e7754c90688838bb7f22089921addf312. 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/USUM71911123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1ddd63804e931a2294ba0f3802a6c67aaf9f21bcd9cc54f162335ce9c13fc8. 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/USUM71911121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86d1bbc475d849e61aff8f3190ac4acf9e936b5361c373cf4f66c297e441bb1. 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/USUM71911137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d6ee1a3479e4c477a819b62fd0ce91ba6388dac8f35c46a3b58b7df575950d. 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/USUM71911142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16752c5d9d309daa4f53db97e63d5c586d2e952ee3de6ad3cd2451c1659dae3e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUM71911139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0bd0af98bddf54aa749ae44b01a17dec4680cca3524326751289c00cd73fbc. 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/USUM71911135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed538884e7046917e8987662532cf5bdf04e08f3a97302bce27e1ee16d7d2cd6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USUM72100165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e7225d491967b2bba6dea2faf984024c7e9697bfabfd3f65f69a06da1198e1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMCE32200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aea7aac71179f0875721f9d1f3e4f66e7cf39edc10261e8c5f857927af61c67. 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/QZ5FA1750526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a3877149e5fd4f57fb0c6566b0b1ba1b9bc6b31f818b40bb89495ac30fa3bb. 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/USUYG1028371.
Sang to Em (feat. Nechie) - Reloaded Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c53ed61d25384d70c291b59662b2502739f5da9e008512395318999c0033689. 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/USUYG1028242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacd67eae80b3265242bd03e243482360946c6172de61a32a1aafbddf6cd9fa2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMCE32000229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacd67eae80b3265242bd03e243482360946c6172de61a32a1aafbddf6cd9fa2. 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/QMCE32000229.