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 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 0x011cb9526c71c19e39dd66cc58cdb33a5bdc0817515f6b175ac7e5a44ed621d6. 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/765b1bea-74b1-4711-b10b-b3ed7ec39966.json and https://artists.proofprofile.net/proofs/artist/765b1bea-74b1-4711-b10b-b3ed7ec39966.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 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 0x70d2ba25b1b821df749794721b86940d231bb0bbb0a5f2d6e775a503ccb2a144. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T07:27:32Z), 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/DEAR42281413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa5f8b3beeabd6d5e0ac3f43740288f5fb1e99c1429f605d0cbac4153e9e309. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEAR42273682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b451ca7e660d80cb8f2382a2c52c552020a120096cf30bee1551f895bec72f. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/NLCK42225988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bcd223a972d72feefbce86ccdbb96039f325c9c405ccd31f409264f1b11fc9. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/DEAR42315775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3f3c678e5f41882a63e22c9ff87c590bbbc9714ab5e247e79c120fe71422f5. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZKDK2297442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca8642313105c9cb8f70d357e5d966c1d3caa55c77c9472d4d7b72fbbd6d98e. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/NLCK42400498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00642c8ec7a41c070bdae701b599ee88783202de644741b032104e8cb12c9c2. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/DEAR42479176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d36394baaa50e75e27c7cf27f2cbca8a41cbcf3f0d00a120eaa5efefba41537. 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/DEAR42482962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdecec3c2eb9b85a9d27447d74654ad7ed1df7010cabe003163feaead780597. 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/DEAR42478306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d88c1796d3bc6e3f39a8a8476ccb00274a3d539103ef692e9ee164764a78cb4. 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/DEAR42478206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1720f94a5c4614d3ce931f8921d1a95850127d0e7dde6ca7f49964d5ba3eefe. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/DEAR42478161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03e90c0de0dc6ceada1c928d35e8a90feaba5b03aca674d4012f0bfbe96a668. 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/NLCK42412745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb879ed2db4f69a51b82c6b238dc4c51ad0de50ba16507d7d5d4524df5bac4eb. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/CA5KR2495019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595da78bb99266d69f62d096a5d7b49885244dc390bc7c936f4e55c9189bc9d8. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/CA5KR2495022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5b3438f71d93e4a536966dfe5ba7261885066ab519ee45a9dace1bd0d47cb3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/CA5KR2495023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f71eafde964053df78747e1212f440a60b3cdc1a9cc3dabf0c8ce9c99afb8e. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/CA5KR2495024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bae231f7f876dd12b0d366e4d92caaa57b17d4d0a8279e4b6546b75002e3862. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NLCK42419023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea67a1c1c29659c749797b794b002b8852eef661a4a5cd6d2dace9dde0a1167. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/NLCK42419024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca826d2e1dc540c430871e8dbd83103a679dcd6dee944659d79678806548284. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NLCK42419025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70796221e23ee5e60362ac664eb2e11b9d3f9ef2df729ea2272c5ed8fa4e5286. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/NLCK42419026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec248b99ae6f33574705fa984f0db151efcd93bd998c40d08291231bba580ad9. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DEVV92401204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1819607fc1b2248c32f2b954e0ac8be0bd9781ace40f65bc237313ede2159f2a. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/NLCK42503545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b0bbfb38484880479dfe6460db279fdd77e00a0416755a54da82232c32d4f1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLCK42503546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39c28641d7362dd21dd489061126aadf74d58ded68b5271fb35903ab7e0e4f6. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEPI82310515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b451ca7e660d80cb8f2382a2c52c552020a120096cf30bee1551f895bec72f. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/NLCK42225988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bee2df7741a6789d4790aa1978504ccc8ce9a97f5e12d54ea5abe7dd4e7c52e. 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/CA5KR2475975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e09c6e05de797918e96852228eaca5bf15ccb6da54b414f9846d37495d292e. 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/QZKDK2382052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a8c3f2df5cbe67f87300b7d656bdf66e23e05210df5cfffa46c746c6ff8bb0. 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/QZKDK2017923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03afa388bd843e9a5b3323c1f092e04f3d2dd1b9c1e85a29254daa0fa13a4502. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DEAR42156955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec248b99ae6f33574705fa984f0db151efcd93bd998c40d08291231bba580ad9. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DEVV92401204.
Isarnian Bloodlines D_B [Counterfuture Hi-Shock]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366ab2c297e958621e08c4c359a982cada945433fef33fe17e3a271a0b03bd28. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/NLCK42236054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bf8381840141a582b8c6e2079d338ee4358c457fed8222627e5bda01525f42. 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/NL9WP2400007.