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 0x54ba2e749916029c24a7e53b26f4ff1d713584e4f806bc63d5870983e2a629e8. 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/8af6d62e-862e-41a0-8f6d-bc3adf321bc1.json and https://artists.proofprofile.net/proofs/artist/8af6d62e-862e-41a0-8f6d-bc3adf321bc1.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 0xd63f6a9c932586df5b2985e65075e873fb454e8bf23d63ad765bda04245bb3b6. 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/US83Z2007756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa8f01b85dc248e928a622cfeb095092f439503d2ec75e4667a2c961b7db278. 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/DEDH72200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d01a78a6ce7b56a4158cba082c2788833a52a0af94e3bf78b0fe35d11a0746. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEDH72200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c148434e309075fb6bbe322369b72a70808ef802273fe5bb1d203140b952f7. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/DEDH72300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5694cdb606da63b718cf336a9b8b3416266d2295cf1782e523ed7fc27f5c666e. 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/DEDH72300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ec9d8664b6c70fa04fbac468ea122e085c448d360dc4f7c96cdd21d62062ae. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BXBK62400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9929fbf6dac4bd45064394deb8c4652cc9bc3288cab5557a5a97148e4e4ef053. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEY472471726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac38f1108dbdff89bf8553ce023f3c5f121abb5152388ceea0d95f9ea005d6b7. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/FRX452425231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47100a16b9b046a1cf6ab055db13785ae25401471bd3a93296fba02cb563e461. 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/BXBK62400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c3c5521034b1f23781894e35cd8b2a61e7f273abf11ed3f0cdcce6ba3583ff. 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/GBUR62000890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e696b1cf4776fc6710bdb8669525a0301525972aba8c0a9ff2aaa8424da950. 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/GBUR62000891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7200a89917ab1d7fecfa8996a2df62e9fe6376f569d9a1280213889540bc89c. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/US83Z2404357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673126a4e7b15baa9fb7e2617632e3696933c2d7b95b71feda074d33ac19e017. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR2X42519611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f70a8a014e237a76e1d905bdb92608b8bea049dc64a986d2f5f21a0f6afeba. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR2X42519612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428d05341e706eb00be339c3c1ea7f4bbb2da185036b777716a998fba56f9f6a. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QMBZ92548526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212728030cc1dedf126ab53eb81bbcc057bcfe1e31b1f12771ae84ca3bf1b71a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US83Z2038315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bbaf677c08e622d612d3cc48f7487cb7c71c02e3c4227c6cc726240bb2c0bb. 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/BXBK62400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d3e269700142a712e3d543c773a95709d9950d44c8a5a304d7501bb7620f46. 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/US83Z2121388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47100a16b9b046a1cf6ab055db13785ae25401471bd3a93296fba02cb563e461. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BXBK62400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee0e97e340fd7c45685002af3e2af6563d03a2ceb92724e2a5838d68b3d9769. 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/US83Z2036161.
TOMORROWLAND WINTER 2023 - March 20, Live Recording at Mountain Stage (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481d2f0a53abf415b3284515e10f15f679b9b1ec0ed91921c54fd02eb775995e. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/US83Z2141409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bbc10e8caedcdae6d4afe6b32df76c1d4097875b5c4a86fc85bf0421a64bb4. 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/GBKQU2430485.