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 0xc1f7727bb69c3bd892577396b9a98b9e58c5f825c5e189da8ef7aabc11926350. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ee5eb17-09e9-4dc9-972c-fa0405d30750.json and https://artists.proofprofile.net/proofs/artist/5ee5eb17-09e9-4dc9-972c-fa0405d30750.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 0x8017905dfb66a81e53bd3bd2d56c582e39308091629be8587a4d461b3f1eb3d0. 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/DEH742174871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b5c70052a686fdcd89a9fb6a26d9caff1ced3d3560a6a78656bd2fd7f978d0. 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/US83Z2490966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d5f162b9e3315e6fff2f3e6e6ac034111565dce3ebab77393cf77991db1010. 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/ZBF6Z2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f61a9c003eb6f4785005854a203723adbacce8298f172b96593cb3a20118a58. 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/DEY472375007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb71f11f04a92ec8ae03e98e083bac2e75130a75fa46f215089685ab1d263ad. 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/ZBF6Z2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff5210718e2159b64b78c101e05636461cdee516596183f054f3943fe6f7cb4. 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/ZBF6Z2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d5f162b9e3315e6fff2f3e6e6ac034111565dce3ebab77393cf77991db1010. 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/ZBF6Z2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3898f8541b69e01af922ef8ecc1154a3f8e3322503606600b5a4431844e59717. 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/ZBF6Z2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04c883b936585040e974a7fcb7d073156cf7c731fc86f597c4f0d2834c3e292. 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/UK4JC2400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569f70822e8bcb75867e1103f4fc0daa79ea72272f46d4d6fcecec5a704f71d0. 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/UK4JC2400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b11f55fa880e59aeb31e3426504a9b7f3940cf3c0fdcb3a68f3f8b0eb0b678. 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/ZAXC72300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0908387383e1332dc5be89d5213670e08b8730da84fd0da79a92994c05f93ba. 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/ZAXC72300116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654f0517de3c6d96421363eef061800ad384894f5c3cf9f2908061fdc1ab010c. 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/ZBY2A2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca253123e6977607779cd7877d44b5fdbcc2452ecd91655323fe6c29930388a. 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/ZBY2A2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258979d07df75c1b46bd41e3c72559586d1c4daecc6490efa81573ab0f3334e1. 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/ITLCJ2100221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac9ad0561961f448eb7cb5dd7816c0d9ee7e34eba15aaf9cad29ce37222fd64. 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/ITBVO2200189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec5c66878c4c227d337a9aa8efafa00db4005cd0a20b1f2db553aac24c1d5b3. 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/ITBVO2200187.
We Belong (Breeze and The Sun & Neil Amarey Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2b69a3fea81ec6f23a02cdf81feec9f19ef9acacce1dc1ff7a6de389be3f0c. 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/ITBVO2200186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24eecf8097ff85bb85633cccad320fd6d94037c4bdb91d26c7595645cd475d4d. 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/GBKQU2233094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c93ac36f88cfefaf51e776982006edca36b7bc82fc29378d55950e7d52df26. 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/GBKQU2233095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8990012f8a9821a7241fbb15e6a16b52e6dde8a2fd8e1351e6949d2301a10779. 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/ZABKR2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf60df3bd6c5e700a46c62ef7a54618304686eb9a9dcf7b098456e96c2e202a. 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/DEU672101787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc1456a84494cdf37bba21c9c67cce969faccc2779c288320854a812a2f4ec6. 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/GB8R31800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b5c70052a686fdcd89a9fb6a26d9caff1ced3d3560a6a78656bd2fd7f978d0. 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/US83Z2490966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d96bc1349a1b2a2fade7ac53b9fb3ceb102da3a46e02c46738425bcb182c88. 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/ITF3A2300020.