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 0xb512fab82006f5bedf20b6c207783aa1219159557c0ef21c9a877142f5637552. 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/4b7ad6f7-f482-4382-a0c6-2b33f61fe5aa.json and https://artists.proofprofile.net/proofs/artist/4b7ad6f7-f482-4382-a0c6-2b33f61fe5aa.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 0x08ea2419c7b049cb71998b552e9ea6ea7e32a74404293da79ad0405a4f9404d7. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/JPB822200340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf367056e54bf755198c5a58f214021a4f4daebc4cccb577e2b78fea325cbd83b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/JPB822200350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92f74e5dcafc7cd7ee9ed57dffc79118f56cfe27faba4a6aac77f4dc65a41f5. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/JPB822200360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa81ba9840459b25719d80678f81ed5c21b0a84608f0acc65e7172dab4147f33. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:09:30Z), 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/JPB822202610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb6dfa2e3935d769dbd1c8c08a816d219e9a9e2cd730cae256d822497a200d1. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/JPB822203890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36035fae4bdbc920f3064e78568cf4441c110abada60efbc6655a0aab5b7bf25. 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/JPB822300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579ff1a3ecbf6752b0a8dcf9f126e5da550c996ffdd0cb5ed2117929393bb76e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPB822300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9319a4d73a1959047b3a94cd59893819ab6f94c2b5261fe02c2f7b51c08c2e3. 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/JPB822301830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6b1bde75be9def29c91aedad070aaac27534216f067a92700ce06cf9184483. 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/JPB822303030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b795430881f32812eafafce7bece2c7f28d85b235d50fd70a67b1eb691072e3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T03:01:40Z), 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/JPB822303040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb6dfa2e3935d769dbd1c8c08a816d219e9a9e2cd730cae256d822497a200d1. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), 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/JPB822203890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686e01f305e794901697fec6db69648dc452107462447ecf1a942e7d13ca8c82. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPB822303050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb155e3a5e7fc2aac1e7bbf51f18f574729a5586d74d6f0adfb6600a994b9a4. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/JPB822303070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf801d846adc5f9fb19241699509ce81fe2e1fc3cc3b2e3a933972e180873d4fd. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/JPB822301820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2e13358dd1571ff76d0a0e4043ebc0acc2b79f450412ff3fb3dd3d5c925f75. 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/JPB822303080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c254167473588739d8c2d185c29d7c400587cc4ea77273b436d2fdd79ba9c8. 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/JPB822304820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3921ccefb2bcee9e33741686b6d595efa8080ac4b8ff1557130f0b480620d62b. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/JPB822304770.
どーぱみんみん あどれなりんりん
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce63fc89d682b5a6f0bca6927978efcb2bd32af52f40447827b07f7dc5a3d32. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), 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/JPPO02404923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578df211999a5262d52529d9f15910c008d7e3048da96b367406a6970b213b81. Chain 2 (Bitcoin): anchored in block 957723 (2026-07-12T15:34:17Z), 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/JPPO02404924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2ac0856e58565c3ad66155166a6c9ec6bdeed9270d40ca34dae283dcdd69ce. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPB822200320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9c465c1a457e2c3c94f04f4a3910607d8184baa319609ad8c3bef844b19614. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/JPB822200330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd174ff37376b4af55ad4ea8cf6f9bb078e505cc9ffa837391b149bdeaf245a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPB822202600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb6dfa2e3935d769dbd1c8c08a816d219e9a9e2cd730cae256d822497a200d1. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/JPB822203890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36035fae4bdbc920f3064e78568cf4441c110abada60efbc6655a0aab5b7bf25. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPB822300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf801d846adc5f9fb19241699509ce81fe2e1fc3cc3b2e3a933972e180873d4fd. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPB822301820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6b1bde75be9def29c91aedad070aaac27534216f067a92700ce06cf9184483. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPB822303030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2e13358dd1571ff76d0a0e4043ebc0acc2b79f450412ff3fb3dd3d5c925f75. 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/JPB822303080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3921ccefb2bcee9e33741686b6d595efa8080ac4b8ff1557130f0b480620d62b. 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/JPB822304770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8783164486aa31b05586956d6a18b08c762d3a19550bf109aa98bda78d7c0a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPB822400410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e46f0a2bf5d794dfe47d0540a063e293dbe5184cf57374229957bbbdd5aa40. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:04:09Z), 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/JPB822401490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68dc2e93f2a9b67d9fe1082b3431a0ab63b4ade791e776d970b197f329883e20. 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/JPB822401980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbab89f78cd4845ee21baadf8183bd267b18bb35fd7598e6f1c2aff5adfed6f4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPPO02502046.