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 0x8af8541413cf9f1319b6e0666076802fda9c9b1e8a9fd71b851c80fd142a0cc0. 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/d78fe7fb-b474-4409-86e1-225520b389c5.json and https://artists.proofprofile.net/proofs/artist/d78fe7fb-b474-4409-86e1-225520b389c5.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 0xcc9cdc52b076939f9496bb25918eddd1d6b696de5303cd0b8a9bd579f0fe41d0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM21853620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c8cd621250e386d4318b4e2293fe4e2833766f6839f8e3bc045a1e026d217d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USHM21853623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355e45acaedd63cb620f67b354bf1ed3ff89ad678bffbda308a6a0fb1d2af252. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USCGH2075718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33b831d0842baabe4a90bde2239a867ed2ed2524ee26c33c778b8f7701f3ee4. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USDY42044122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a9996deb40334b3763d1fa3a3193f41ed4b98e3c2b45ea9e7aa81bb5595172. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:45:22Z), 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/USL4R2077531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9b59fbb05b96016402c490d9cde38c69cff5f80143f94aa6113156912df3f3. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:18:35Z), 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/USL4R2077532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee3b3ed299a4ffdcfd74c752291b28b4e5953eab8b1ef8e431f8012de7da72b. 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/USHM92244213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d6aa6063262aae40c7f674fb51f04deca032df15eea4ef7d73c4c3aff4ccc2. 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/USHM92244214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305629aac3549bcb93a8240c46ee51bd7cd9c1bdaa9c2cc80ff22e86088f2733. 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/USHM92244215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfa2fedcd3e8d4938c0e238b29c1c7ca7b13ec1885f03760be2ce7c1ad46505. 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/USHM92244216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28df4b376039a73eaca83360cdaee360ce1cc79dfe8a0ffbed37ab3410129ec. 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/USHM92244217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3fc1ce2908146ce05e91f3d0f0df8d6864bd94eca49371560d8ed758eaa83c. 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/USHM92244218.
These Two Sides Are Not Part of the Same Coin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebaf17927b30b55d9a0f6ba4e3f3a749108d1df86a81f504e02d33426b735fe. 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/USHM92244219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3eddf19048cebeb5a9ce96a9ac7dd4deb1be89848063b332e2fd42962662cd5. 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/USHM92244220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e53a6f19ae91b984a73d4542f542e14258846f58582d1b821c5624726463b7. 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/USHM92244221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37efaa398870b2e26165c679615285cec6f65ad6aedf40319e8344501745de62. 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/USHM92244222.
Pronouncement of the King (Praxis, Pt. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabeec9eba7361cd84dc4cafa2088cb2ad74be85d45cf3cb807598660603e9f62. 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/USHM92244223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c164b9f899a105479bd389fc12c7fd04fd218472e36c55c5c9c4b971ba7200e. 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/USHM92244224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0238dc50ce46e47e3a9f15fb6585eebf4e24da49e62bc71e6d6a9f0e5f4a29. 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/USHM92244225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a840fd1be22bf6bae93383d1cf6b643b55e20d8858dbd51791f82d38f92925. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USL4R2229820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc150ce5eb1ca9bc16bef2b123bcb6818f14d03bc6ba02b78d5ec66f0e3eb7f9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCGH2329577.
Amidst the Hallowed and the Vanquished (Instrumentals)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ddc17aa27a84835b872be61305663063711d8cda3f2485c0b763978a10bb49. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM82320662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1deef820ff0896ffbdf44cf16937ae5645dc23420fd103539d86166a5ac1cc. 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/USHM22491031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a853c1041aa1eef987d44563d64e7c8701e92628a55cc43c7c3b4a2b4890216. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USCGJ2400316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33b831d0842baabe4a90bde2239a867ed2ed2524ee26c33c778b8f7701f3ee4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USDY42044122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e63ba85db13240f2a7d36a75bcc34f3f9f2995a59a4b0b9ff71e2dd95460043. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:35:13Z), 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/USHM22163202.