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 0x479f271d44501be94f2a9624793f3a7443d7bb9d841314f3236f86f9a321e047. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/367a683c-6c00-44f3-a87d-cb5cffd7d552.json and https://artists.proofprofile.net/proofs/artist/367a683c-6c00-44f3-a87d-cb5cffd7d552.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 0x3f96bbb624545f867eca1e047940ca61e172f862a376057b98fbb9b055f70ed1. 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/ITYBK2500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6be15e0362a6bdb2137280f65e38e7e3aaeadcbc9c7fcdea161ebf49bca30d3. 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/ITYBK2500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d82893146ffdfb686f8a7f507eb1af9c281aea79c6eb13b8911e92f6e0f2e33. 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/ITYBK2500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb909aa87ed89d9d6b470d0bf534b079e79001057bf5e527c29f07b6d8a7282b. 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/ITYBK2500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4211c6bbd3570834a89fe79ef4366ad25bdb21a7847bf289e8d2a73cf9c013d2. 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/ITYBK2500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468ac41c18f1d963c573dd36ebc38ad20258b33bd1d348c4189adbbc0a2ee213. 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/ITYBK2500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193aedc5dbc3225bd879bcaa8da6929dee9cbc6e30c413890445ca651fe9ffda. 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/ITYBK2500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5e61fccc5ebcb0d63ec3fd3c971dfda19a051d9df07fb01d7017e1baa32701. 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/ITYBK2500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9100a7ccfdae0f948bc5bcb04256afc33cf33a5c173a9604fdd4188bc4e2f340. 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/ITYBK2500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ad82eec05b629cb8af110005e37ae15ff1d1c819997252bb9f9bca1a97d046. 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/ITYBK2500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfd11f743b95043061edc30853ff24d7be6988ca8f22c294788f98eeb07363e. 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/ITYBK2500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf17034175fdaba9376c7288730e51f017581db64d43e0ec0798eacf26a9286. 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/ITYBK2500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3ae5a1dfb8cf730bc424ce13effdcf5110ad144dd2fd1aefe6c06a4b6520f0. 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/GBHLW2400984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78bf84349172fee6107618dad8a042d2217d6a9aa4084411cfb4dc34ff11c590. 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/ITYBK2200171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97236ea6fe830c5c88ed70976f5e13a46cb62e0ead7fc1aee42940145c3e503d. 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/ITYBK2200172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a7fa576c6a7eb940beca55bbcfe42cae6a885431bfccda8dd0c439e840fbcb. 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/ITYBK2200173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb836913ddfcbdefa7335e0fe7fe4c7610d29acc52de06450da5e52a63bb7315. 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/ITYBK2200174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1bb8e84f3fde78e0c42425ff2a62e01520ac9746dbd37877b238270eab82bf. 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/ITYBK2200149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22b5ac12f313cde0bb03e3cc84eb7c9ec9204a4b979f6921b40843191cc2216. 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/ITYBK2200152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69b048acd51f1503bc3e641654da523aba140027e8941db60a62fe4f31967be. 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/QMFME1919668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7911c0525bf1b4378f9b5a9b462c8e75f2bdfc19a1656f0b26ace2a7abfbdcc. 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/QMFME1919670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d81a530b5977203ecd9aacbaa6e14916de78accb1f5f5f16a6402826015038d. 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/QMFME1919672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7cf4b6edc69362d698222df35f26bf6e16c41491127352d9569b5747d6e8c1. 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/QMFME1919673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3e95a92cd89e210844d117f12b545447136f7b0189f7490771ddd050d0833c. 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/QMFME1919676.
Il labirinto, il matto e il mondo (Live al Labirinto della Masone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0092d273d5d287d69d001885973789e9af092e51f050bf7ddb63eae37e6f3e. 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/QM7281581775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44b559a9f3f2d84373e07820348916c693af046a099f082a549e54774b1b17c. 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/ITSX11300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8059a809c37273e3e560b6d694b2a84e259c7572dd795e81f902925d938e7e71. 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/ITSX11300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9091c997bb84f1d58c00c170e0f28f2282900bbe42a9f4d42b7c381bf31e0c51. 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/QMFMG1424859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf17034175fdaba9376c7288730e51f017581db64d43e0ec0798eacf26a9286. 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/ITYBK2500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac22855b485c87c423bdcb8ceaf17341899b61f41558f16a9321f044446757b2. 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/ITYBK2300127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921a5dd273a6e0daafb4da24d216019170ff417f02ac665a365035a197ca4bfc. 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/QM7281798114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b799a9a34b0ebef9693523d14bbc4b4902a4b6da560eb132045093ac2c31802. 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/QM7281798115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440f79a13d485fb8edb546805b1176001f43745d93895e3d071b2a67b0fb6caf. 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/ITFBO2400415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fde913f9f6c668002e718fce2c2108d0028e5a07f4abb8973c78294c48360f0. 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/ITFBO2400418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ca0762e83a5a405350af3f47fa3a163d2b1a010c68b4e9720c81c0e18233c3. 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/ITFBO2400419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59f26401af40cb02ed45e19b094d923aca3a50b91fe8496caee7265afdf3594. 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/ITFBO2400421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8219a76f9d7fb93d30fe797f5a4687a582f061de2c2f3d096f4db05b0ba71aa2. 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/ITFBO2400432.