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 0xc216590f99fc0df89bd94eca8847cdae43b06ace7138d9e92ada23ce1d7e45bb. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a84ab067-8415-42fe-af71-b7e8fb6c969a.json and https://artists.proofprofile.net/proofs/artist/a84ab067-8415-42fe-af71-b7e8fb6c969a.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 0xa6a0926429c79d983d3129b9dd9b4e3230e39e524f119e44ed1c843bcf13ca02. 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/NLCK42233220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216a412511bcbd0b09a4cdc9ed73711f4c361392bdff68f67e711ccc350baec6. 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/NLCK42233223.
Never Come Through - featuring JAX and Allay
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6658c074f01e2dc3563ce9898f2bbb59557da20bcb7d2be7b49076d5893365f6. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NLCK42237577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd259fb56c94508031872258b6e4ef3e21c98b5c831b9b1af000a683b3b62a88. 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/QM4TX2413746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9668aabf568652ba80ae3b12c69f6c9ed96d3f6c6db5360649c58ebb941572df. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QM4TX2413747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4030adec39e3bed5eeb765b04a449edeb5b826d5b9a1c89a80a95e2035bba829. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QM4TX2413753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5760a8f3b2332d05f4dce213d3bff9545fb89c7019ae2094d13ca09095ab39. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QM4TX2413754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106063e445b42ac22ab8f874adc09a15e46bc6e1ca9beeacbfb2a5a8de95f233. 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/GB2DL2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb672a89aaddec1cd9adb05e9792b2762b06c35cc05e73c4a87fb85ee8ad6cda. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GB2DL2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b6a70573b013ac37dc1fe70f6f9c013f0d6e644ea29fa97a90f8f655ce8713. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USA2P1895459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ce734c15c1ce123dcfd05b2c967d53f3813b60f4afa4a54ed72e50371febd9. 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/USA2P1895463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3139d850fc2b5162ebd0fd7f034dc81130aaf3d38a1993b9cee01669e1d0961. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USA2P1928375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c76754b38bbe7b0ba2d0ad3bfcdeaf9981b8f3a94e711d86d71111352755bdc. 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/USA2P1928376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89bd491c2f0cf56a07976be716cbcb2e70f46fd34c6bada80518786f9e3df0d. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/GBLV61927755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eeba49f6b41ce3a46b6b83ed25e61fcc73703c2db6ecc618e4748a699ea7cba. 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/GBKQU2178749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa9a1f9cf1fe881d633ab8592763b27b5783d3f2277712c0bf95a8ad503042a. 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/GBKQU2178759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309041004ef00085f0b54f2d0f4fd5f644131dfa0a07426ed62aceab4c01fe71. 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/GBKQU2178760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6f3c976b0aac33025d6645de05df897b2a5cf3c4bebd12f4d68c3e353e8048. 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/GBKQU2178761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e219a00f4f9f32c319ad435ff32f2d8a60bf5d1a9d49f09ebc7c3f871e1b90. 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/QM6P42354491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9c9f8d95529ef5f5ea523dde8c797cde462ed1f378d786578003c556de7478. 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/GB8KE1950336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cfd09f8e58bb4fe3362e1a4fb3a7926457f59e4113d4c80b58f336c3e24e6c. 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/NLCK42237574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0192c7555d91a641ad32c7bf2dbc7dc436f360708ca47ed75b31dd54fc283387. 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/NLCK41071929.