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 0x5bf1a59381b9726cd6cffa7ed12c8163748df9ed0e742a54757a626f58cfe439. 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/e5b155fa-7cdc-47f1-b2a2-2f1dc20fd52f.json and https://artists.proofprofile.net/proofs/artist/e5b155fa-7cdc-47f1-b2a2-2f1dc20fd52f.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 0x8e4ba73982e2cde5ad7aeacc71d76010b16ca86547d0a3bb1a7e566d6496a9e7. 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/GBVW22200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5f01689046e3de47d9f790298c6b08f367f77ac90f03efb8811b8af555b92a. 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/GBVW22200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b42d1aff46f3f79ca1f99c12f29e2c9f4581714eea12ed26287bdb7b11d67a. 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/GBVW22200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f08e81ed4414fc34d796e608f03dacd1571b5a41eff1cb5f5aada6afb43297a. 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/GBVW22200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccdaaa275ea416cbdd94095df77a8f5aabf4f480267475f4d5ae41260415ca1. 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/GBVW22200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21992aab758f0e7c0eaa8fbb0df734a8ca744f7287f90a213d3a2bd9c47677f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBVW22200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f7a7296dd8e8a381491370d39a503be7d66e96ca2b79e7803fb3ea8e661ee6. 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/GBVW22200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7227c0e3371ca37d81a05ca24bc9fb964158f1ebfdd0b42bd5286821d5a6177. 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/GBVW22200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0ab747dfe35128a705e7f875b4027cca22427c569ba46d9d85e7778faf5019. 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/GBVW22200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc202282045a7d24fc99b5783f1b009a6d2c5d3d9d700eee32f852de58df95b. 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/GBVW22200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e634c843909df74e62cfa148c9ea58a1ac60045608e080ef1cfcf97ee3bba54. 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/GBVW22200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0a3bfae7a6d1439f924874b3c1bd2e740c0512dc42194f356a163cd42f003a. 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/GBVW22200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc0c278f9599ec6819ec03ef3b68636c02b70ebff040c778ab73bbcb47eb0b6. 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/GBVW21600001.
Roll at Dawn (feat. Jack Jetson, Bva, Smellington Piff, Oab & Leaf Dog)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247d93c903ce17ee0bb84a51dcd7615117d0ac27ac1ed70b9a8fb93bab14cfe7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBVW21600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7b4d5ecac6c55bf4e38150df7154cf840d8fa2e212200b3bc51a345b15be6d. 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/GBVW21600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb751537a835740bb1c1b07034c7bbdd2eecd3525af1c7c8f8c09d0ad9b1ece. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:02:04Z), 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/GBVW21600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1386fe6433b941c738befe32e9bcde08686220b0a0aa5cd28c1190f9d35a6d1. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GBVW21600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5decd64ba8847e23c61fbbb80c48a58c5983ec312f9e3549e2c9093abed2eaaf. 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/GBVW21600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210fa214b8f7d1422c506e142ddc9bc8aa60be5107d531b9a36f96d816c99549. 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/GBVW21600008.
Adventures of Shroomlock & Dropsome (feat. DJ Merk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dff1529f5afdd16237c50fb616798f71070638ea2c031c8f562dd83ffe22bda. 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/GBVW21600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a89759afb3cdb528a621e36eb39a73bff1ad840992fdeb8063fe69cc90a823a. 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/GBVW21600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ef9389cd1c676751e651a7a038993f9f5bd6a34888f41888d898958b6f9e54. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBVW21600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5cf843917c5f3275cc6549404e8df981b2fa2260f15707856c7f778a48073c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBVW21600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa5f0d71b1e2f05c0b669b9860750ab34e3e75854cb0c2ae5b24988252603f6. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:21:23Z), 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/GBVW21600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c550fd06ae5c8ea0d77af711a8467be3af99713dab8a9d9f86d6359ba686c0c. 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/GBVW22100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df188848a12f23abc0bd562a928e38566810bfb74fc0db9c3ee3079d21695a6. 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/GBVW22100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ab0f8ba6639a0d96bcb92612c4d652297ba86886b5a8501a53a946a1dce612. 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/GBVW22100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277146a7eafc5fdac6eccdaf3c8036586a268d87a5ffeaa38b192f63d1dea13c. 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/GBVW22100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc700dcc022496c01634ec21d0bdb166e61999ca1612669b28434922870c1ff2. 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/GBVW22100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdac0bd7db75e4f2af3f90e0480cfa86d4beb2c8a1c3e7b39d2a838433461b1. 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/GBVW22100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75462fb16e7da338fad8142d741eb9e91ff221fe6406a07c53f7b85aa271aaa. 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/GBVW22100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e83d7244702d381789b61cedc6ba058a6f9affc72e5abea76dfed538d401cc. 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/GBVW22100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030ff897382d82f7bc640b7ab5b51e1c9ea2e07a9cc588cb2ff61a4ae6c63c4e. 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/GBVW22100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c852c382165f44adf6d5ba3d4506fb0b677f36746b0900b6235481b85af1db. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:47:22Z), 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/GBVW22100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa19141fe3807dd3c4ebeede17d8c6d09084bdd8c906a1baa424dec733e2a783. 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/GBVW22100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab4bf21b4f86f8e7ebc0cd1ae82dcd6b1a277c8c356c3804da0d92e82b8a744. 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/GBVW22100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d1e07858d3ed5af37873d1aeaa188d9954cc403c3b17d805a5c251a62ec42d. 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/GBVW22100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46d9504fad8ac743a7ff14fcc172f1321ff3ab596b75d8dc6cabadf37045881. 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/GBVW22100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc700dcc022496c01634ec21d0bdb166e61999ca1612669b28434922870c1ff2. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBVW22100036.