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 0x87c90b4e01b90d02415260a7990a807511b8f07af89c0b089282b3878a183962. 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/41c79278-e95e-4446-a2ab-3162fc21ddf9.json and https://artists.proofprofile.net/proofs/artist/41c79278-e95e-4446-a2ab-3162fc21ddf9.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 0x7a845e3d49e985c96dd1b325f20f3da74b1df8d72e841866becc5a2204a5a4bc. 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/QZTB92250051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14345c5971475c6ec2cfef3307d852e3a62f61dc48feca3714e564b38d62c63. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZHN42379310.
This thing called love (Acoustic version)
This thing called love - Acoustic version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029bad3e3cce06283af64bdeb147f1bffdecba42be2eef29f402d704010a0a41. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:32:07Z), 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/QZWFE2393997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc406ca331846f4314bee4d7cb2560832464b65d6548e0651b25248e8ada329fe. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QZWFF2340937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe1e038d4f39c4edf28515308807698d1f271bb24d84376c3dbba3cd204e0ad. 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/QZWFH2355029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4cd2c57d0d3abae7548558a953ccfd7976ee3c391c0aae8f10bfd45a608d98. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZWFH2355030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef0f58b85197079c675ac9e84e9be8ee9504036874d523765eeb27d6a9fc799. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:56:51Z), 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/QZWFH2355031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25e5f51634e4dd4593f328796e3e5e128d680b8a869717994a9d1d589357539. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZWFP2302560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4dd1d04eef03494350f4f03c62655c11d6829d2c4232449aedbf1959ab1c90c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZWFP2302561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bc687ca215ff33f700b042f1d573710622efb492d215e495f73d74e85b797a. 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/QZWFP2374621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a53f68f7ef4e60172562ad9b2e32fca0aa9110b269dbeedc6177d9435bacca1. 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/GBLFP2417730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca80bf00f3da10e97eacbca74f39b1b567cdfce288dd5ffa4a7ad44c4e58c8a. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/GBLFP2417731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa0d9d1c8410b0fafb845445757f19d568dc0041bad853bd1776092efb3bb83. 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/QZDA52479968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0fac993d7577f947ac8fa7ca5e2792e500285b282b711f2f6c40b49e1ff799. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:15:38Z), 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/QZDA62475239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb269be79dc494fbc4b322a98fa775126740f8a5a8e6f2c4746b94dd87e4444a0. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZDA62475240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e56d42e431de6d30477b8123dfe594cbf1fded51f6b53032cfd31cd991f9f22. 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/QZDA62475241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e69ee40b379645eec7add220ab70db9ac4bd41232dc0b0548c07d4d60f4a99. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:56:36Z), 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/QZDA62475242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2242a89cf38884baa7062889d816dbc6d83ec1729e2f976055eedfd589037698. 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/QZDA62475243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846ccc86bc8e1fb9f6ecd2cc4808d13fb02a8ac382cd37a37fa1c27ceb0f3764. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZES62425605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7038d105cbc229a5e3fd01c5c65adf7597dd0dbe0ebe05a58511a829a2e211b. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:26:36Z), 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/UKXN22409286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e05aee30dfa58a8b4a9e6a930b7d2bd5771c6a2140daba8371433aa716b70a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/UKXN22409287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ebfa795244785b288043c532cef7de79c776fc0312beb3de773769bc860691. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/UKXN22409288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f5495ef2905bddea1321cdf0c5d3faa361789efc925e1cd9c4a013c8dd47be. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/UKXN22409289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe83fd53385e8b01e76818d08fc9434d68842fcc44c1edea226c5ca5e803276. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKXN22409290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13f29f58475c49c5066557b50b765ba581722d3a7a7b583d3babbc663f21d62. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZFZ32568894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2001f6879c58844fb446a2a421639b0e63fe473ae4fcafb1b30b48f6354669da. 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/QZFZ32568895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc162b96a8ed7e6bc22d6ac4bc8d5d1fb381688b4d51398b09fcd7fb756aa4e4. 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/QZFZ32568896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04738d1806b231e290ede5b517b9ddc02d5c6974d15bd65d70eba195a6f3111. 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/QZFZ32568897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf7fffe6a79b5a4b9323c4b301573c621df235e85ccc699f5bc66d8f1cb0f01. 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/QZFZ32568898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4134374cd3a343ef67df71c2358a0eb915ebc73d6c06fb146d546bd2a42d8dfd. 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/QZFZ32568899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bfce5355031684458dc379fd0327244d0e435625cd5edd4c61a4bae5825554. 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/QZES62334643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69ec465ae12cbb1d8df2e81c74790abd8e8dac3d58937446076cd69a5fbfb1b. 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/QZZ7P2509023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64bd88386a73c3256b5796808406385ff524067cc7e53a325a8e2734949b400. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ7P2509024.