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 0x553314e545a36e0d1ea3f2adfdb977d4bb946663a01b7e3a6dddfda51c9f4c52. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89e2fb09-b2e6-4187-8b3a-b36bd434e01a.json and https://artists.proofprofile.net/proofs/artist/89e2fb09-b2e6-4187-8b3a-b36bd434e01a.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 0xc3296ca2f7a60cedd76b724507b6ab870e649c1efaeeb45f4f7b35ae0ed5ebfd. 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/NLRD52355140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627e932e578b89a1e4a2c2e05b6cd98e70de56c8a8c73a569aab357fb3d22040. 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/NLRD52413837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576963880253bc3cf473bed32faca7d18442c8db129307559ad26e1af9b170ca. 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/NLRD52413809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1546622bf9f68b96d53892b3e35f6a5c972d7d950fb45fcb37b06fa7016bd0c. 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/NLRD52355093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01168050ffe31cc96c166c548286cd3c123bb8f748731605253123de6641981a. 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/NLRD52355179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a4876ad409e81ca943b26e11ed85f0a7cb4090352bec8da803ce314880d6a5. 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/NLRD52355100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6b0f32302cc6b0341dae8981a548d843f60726b85ce979c611a00b2cf955aa. 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/NLRD52355137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9884f39e1d8f9bbf7cd6195b41850966db1dbd9b8f7ef034fa11e4c3d3f4092d. 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/NLCK42215465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee17b10fe84fb2834af7b2547bbd69769118bfc53fdc8e3dceabae9796db1f0. 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/NLCK42221217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafc065ea0edc11087005c44637e2803c885dd13bb80e92737dbea04cf9e11d2. 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/NLCK42220415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ea22200a802e594bc2a7f21c051a4cbc9881422af42c84d2f22fadcd81a136. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLCK42219882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cc0f5dfc57b860db80a73a7a00b2f411e08aee9afa30111f343c08e81d66a7. 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/NLCK42221220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054679ea344ba64bd1dd00709ba9bf4c77ba44e91e206867f863e62d3916ff67. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NLCK42221221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5733746a7d3be12cfc958e1afa03b6c6cf959b09b25c61761f59fc539fdbed44. 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/NLCK42217535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ea22200a802e594bc2a7f21c051a4cbc9881422af42c84d2f22fadcd81a136. 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/NLCK42219882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3296ca2f7a60cedd76b724507b6ab870e649c1efaeeb45f4f7b35ae0ed5ebfd. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLRD52355140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91d7916f9ed76ad2a56e96eccd1e58c2bd9852affd6d4dd57c8f68ba187ad00. 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/GBIGR2269002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59aa725734c83af8ab971dec61356a68568c3e7358f16d23a055c47cd39c7e5. 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/GBIGR2269004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d83bd01be2eac00e527d9e25bd1f6562a7c394326bb75e9864c9d949f75505c. 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/GBIGR2269005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e11aeaa4f750506376fdf30b6523279fe66a88599b923377eab61ef3587a94. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GBIGR2269006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e1838e2354c276e1fd91f4922df07f2ae9e12d6b08cf8f6aeb0a38453515fb. 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/NLCK41088606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d9f887700681942d073b2352dcdd84f3543f4b7032d45a12ea5047b7617460. 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/NLCK41088607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e1838e2354c276e1fd91f4922df07f2ae9e12d6b08cf8f6aeb0a38453515fb. 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/NLCK41088606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce678b0e7859ac3fa50e9795b318b493646ccb8a3aca87ceafb38f8e21d7c2ce. 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/NLCK42223119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad976a0ad4909177ef1fc04ed01c6ed31b8e1dbbfa084fba7bd5509e6811284. 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/NLCK42222421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d34d479cb601bef13a7915511ce7cf253696e0179370cf13ded077cd5a9254. 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/NLCK42222079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87316c1742359cadf6f188bbf1a28f3efc2e21d841c4af436f233babe68c0e47. 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/NLCK42221692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cc0f5dfc57b860db80a73a7a00b2f411e08aee9afa30111f343c08e81d66a7. 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/NLCK42221220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1614a011c7fb955fcc4e2d33d5ebea4118c4ab865e77ada9c7eb08de2a200f. 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/NLCK42221913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181930defd11298303cff328ef70009c73ab0f99778991cef92b99a97ac4b4ef. 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/NLCK42222011.
Colours (feat. Diamond Eyes) - Feint Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d486e1f812806ed8fe5b25b36e7d46638edea2529e9bd1f681be99b638ef1d. 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/NLCK42219766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ea22200a802e594bc2a7f21c051a4cbc9881422af42c84d2f22fadcd81a136. 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/NLCK42219882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73790179973abb3e7eecab448712ae6886eb187af4e4d2afcee8607702c1a89. 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/NLCK42221918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7dfd9600b0f185fc514acb95943c769c994981168757f4c22497a0dfe9805a. 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/NLCK42222779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a45dddcc85bab2951070e33fed2993221ee75f67e130ef0c5f238fb86dd186. 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/GBIGR2374001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5effbc8c58f48a5b09a8ea9dc170d1bb38f6dc712e9f9219785039904460f3a9. 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/GBIGR2374003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83bd59b348f114206cba26be695180f2226f057f64fb764787e214098f04bec. 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/GBIGR2374005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b3b82d36b30afbcad943a849bead17fa1285c0ec5858bd73ac72f13bb1a988. 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/GBIGR2164003.