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 0xab836f49e9795c143978ec420588ad936bb3be4093779978130b0a2af0697837. 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/9cd975ba-a4c5-4bf3-bfe3-e329a4e3def7.json and https://artists.proofprofile.net/proofs/artist/9cd975ba-a4c5-4bf3-bfe3-e329a4e3def7.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 0x3c01d8151c01aa74bae1ddec635fc70fd2eca84be6f0b2ca21074f91daecab53. 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/USE830929343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc4a744e7ced6d15fc93852aeab75a6ef45302ace4c16f1cb6bd4984c8b6636. 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/USE830929707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c2d89dc480c28da8d7e7faa32314f0543a6874292394277cf04afd57d93a68. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USE830929708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a2e0cd5ca55f812e81cc7aec63e9157db41fcc5a827090ce3b5c6a942f5b7b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USE830929710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82121bd5f2c3887d3117fd7dd4c5308cf48f7c50256ec3bc95c38269bebfee7. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USE830929714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb888870065067af7c90d333677e048ffa68c64d58c5b9ee20f5b68cc1038b99f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USE830929715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69503edc4a6fd01c947a31685615ecf8e5d18b0c3e714b9d1cd7d3d0a62e1e16. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USE830929647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd0236d806243cc9cfa07791353a25417aff150f7f709d05d2dcd8a2806b84c. 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/USE830929648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcae655e5f7d80a03129d18423c2665be52ad65b6b71e7034d1267b91564208b. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:08:38Z), 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/USE830929649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0aa315d8fa2205cf725ee7513a22545b9986d828b45ad86a026e83f9ea801c. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/USE830929650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24eb2cc26840a5d3864b1ba47db7d12a4a4c96c1090a1e37ce01a6bd68cb7cca. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USE830929651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3851bae3592872fb4405b7bf1c7c4bcff64f41abe0ddbdd9b3721b99e5c8e81. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USE830929652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587423173af7173b8980b50688bbbf37fe46ece386168938097e46420eb77cf7. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T03:00:09Z), 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/USE830929653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b910a894fa812e10f6ae52c5a0ed572f00cc34ad64b10ce0e7be6b138323ba3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USE830929654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b6c6f4f87233a2d95cd6bb69bd9f1832ab5c0ea11a703f48969517b50bac22. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:36:23Z), 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/USE830929655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87106f07922c89eed2cd61d32278cfea14d8d4b03fc4d5a4c2a5e93124fbd2f. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/USE830929656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5664167f86322d28bd6393dc58ec956075f5f73731caf13cf4bb4b0ba851ab9. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USE830929670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6827001bf1e13fc66fd9a5f31ab239953bb5bf4113f4a5a59a05aeb4da0f1fb. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USE830929698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3540d03360af99a22a282165ec86b50e3b198d90c9a5b2e530a6fecfe4e8722b. 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/QZ22B1929319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2009a8b2c46833df56eeb7ec611c4c19771f0015d27293418b560e7030813001. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ22B1929320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6909a5e84c40377bbe400d6db49a0267c6b3db5f1a3d6df85f6ba9504191659. 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/QZGWW1983386.
It's The Most Wonderful Time Of The Year
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fa29687ac3a5089cba1d03524a055cac92675acc50bb6eb9224327ae285012. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZGWW1983391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7068b6f2399663496946f6db808d42a9764b746bdbc48bb447f785ef8e5cd4be. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZGWW1983392.