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 0xae7a17b5fb9596cbab65071631b4d63696337561011b04dea39291b70c6a8b67. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b39d3f0-f80a-4881-add3-a2506ecebecf.json and https://artists.proofprofile.net/proofs/artist/1b39d3f0-f80a-4881-add3-a2506ecebecf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
When Daylight Strikes (Intents Kingdom of Unity 2023 Anthem)
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 0xe8cc9091d11b524008b2c6b4161557db61020e2e00ec5ca4edb78876d6a1d275. 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/BEB682300292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a7acc68d88b1fdf8d90c9336edb8a86f2cc05625054eead8aa4e20eebf9e69. 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/NLH2L1900133.
lift me from the ground - Phuture Noize Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f291091dffa9c68b6e5d92fb32b9f84f3c01def87c1eb185c98671eb6eae78. 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/NLRD51632410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a500885ccd0433399d1fa3f9ee69bb38d8731345fca9b248c5f1f562a210d60. 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/NLH2L1900085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cc9091d11b524008b2c6b4161557db61020e2e00ec5ca4edb78876d6a1d275. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BEB682300292.
Hardstyle The Ultimate Collection 2016 Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290f6c7534ce1f46b10a07abe7c839539d45d7b36aa340e4cbe4f4e876f60b7b. 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/BEB681500486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd028db311ed4256f936e0737a8303997e57998572af0138ebbaad4db2948cc. 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/NLH2L2400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b27ad80bf810bea64287d2a701d97dcb5f71395f9ab7e7c730ce9fce2c5add. 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/NLH2L1800249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7f959a61dc484d0647e64b3b8ad8f7ac60aa8ec92a3d79ab80dd43ba063edc. 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/NLE801720049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223819efa85fc5ce58d67cc0a3c416904fea3fa843205b970d4eab4a96198da2. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BEB681900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b818e271356a10e18bc72609eaa0ce5c22c5ad128cd92b7b438bb86188ed832. 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/NL2ZL2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f4cd73bcd2b478075efb2a02cbc073a4a390a8de6222a54e12dd7e02136a73. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/BEB681500298.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670f5864b5e9dea55156a83bff267763ac6b72409da9f99235769895dd7b8ef6. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/NLH2L1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac3113d36062184757c94d119cbac124aab6487b83d70b2a38adab313f29a5b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLE801720044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ee990526bfe9f387da230e50f59c991d9c45609467e6e4e3ac1fc926151fdb. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/NLE801720047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1152fcde40c5260ecabe2d93f89008dd9ab5adde3c0920155d689eef7e940494. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLE801720050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8e65127e571428312e44fecc10f8c60cde7332b0fb0a0dac12089d0d1b545d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BEB681600477.