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 0xc828928f1e6be63778382f168c272b0340f6edf8a672a8e670e6ef8c99be7ec4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08d7ec19-00b8-4a63-80e0-50dc2b0ccbb4.json and https://artists.proofprofile.net/proofs/artist/08d7ec19-00b8-4a63-80e0-50dc2b0ccbb4.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 0xc651e19d77ddf35e70973a4db5caf76a8812da7e88c229412581577525c5f8cb. 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/GBKQU2381164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48a1f9d79b38772c5b683845f76e98121f7c5325aefff18e9c167aad50019fe. 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/GBKQU2365240.
State of Freedom (Infinity Festival Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e66b814743c8210af2213b106ebae55ba1185119cadfda5039e63dca5d29fc. 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/GBLFP2284879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ad8b6ae45a8e091d080c09d434fb1871a739847135a3dc3626397a52fadb84. 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/GBKQU2451587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61dd214c8a6e8d3d3c85d130f10f42474ab3ff45fb0e5b81e936619894262fa3. 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/NL1S62400581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6496ac95e8acef52044ddb714a91a8279182000c831fb8afdaa11cfc566440. 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/GBKQU2422892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592dae36688121cddb5d833e6c02de2710aa3f024fff0da2d2f63f2e0b5607c0. 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/GBKQU2419421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a9038fef9871a37b739b97c4a75d83d4b08318ee0082a3434fbd2397c373b1. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/GBKQU2419432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4410440afc114ce5991108f9e8a40b5813de9fe1e794b88bef5038b56cb37020. 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/GBKQU2419433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592dae36688121cddb5d833e6c02de2710aa3f024fff0da2d2f63f2e0b5607c0. 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/GBKQU2419421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9935254d608779ff7f94a0353bedaea1e0d63a6a61b10f0ed596cb973db5f83c. 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/GBLV62317527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614655f201baa187f2fe197b4ba673e11602ebabec713a0583dd58e2f598675d. 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/GBLV62300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86c0331504ccb968c9d71848075487005c764514dddf8adbe68adaf805d91c5. 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/NLG3W2300211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc19b27c1b525f6ab57f833441e912ccc1e9db96b33c6ab37735226334d388e7. 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/GBKQU2360195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55332453bc6514745cab8d391f53e96062dce9968ef0d745f66d494ce08327c2. 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/NL3TA2325602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dbd4da05fdfe34b29427e746aba5fa8511790de1e8ae5f9020f288e1ffea75. 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/GX3Q92322272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa674a85da1e8ea3b892bf97b602685e69d57e6405479e6e36a422ddb13fa0097. 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/GX53U2078583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3238ab1a6a29ec218182a249912939c82e6ea1c2c5cb8e3e9571e6e04c0ed3a4. 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/GX3Q92106588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40f58bbb0cdf80166f29e71e6affeb623c8138309ff670731eab16e2ef586ba. 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/GX3Q92106123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129ee49cc5951392910bc12a46ac56cfab24574dd6146e1ccd4f2785264f1214. 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/GX3Q92106120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa7d361ecf97cadf3fbb2502f1d914fe2d3afa7a69c58c78f792506692c251a. 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/ATR981230878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847a186ed6f7a3714d9a03e83257cb1ed88ce817d6a09ae814221f84f7015089. 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/UKXN22063337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70049d1370c9cbbc59b5a0e9ae8c172cef3860a8236488a0a46eb44e2bc364a0. 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/NL1S62400671.