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 0x729666517465e23b7186fe9f33dfded4f9995fedcc129e9c283b6acb83a142a7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/511570a2-bf69-4f11-9c28-e82f1a9b6aac.json and https://artists.proofprofile.net/proofs/artist/511570a2-bf69-4f11-9c28-e82f1a9b6aac.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 0x3d07e50251b37110bff2cafebbc36bcbc2821a8221492c1d709e153e6153a141. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USY282300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21c3380aa8f716f76f1f16ad567423cc145a9e606d29a300346897c272fdf19. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/USY282300206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6975dca1309933caa398eb5e48dcec3c354cb5d6d9c499e583b42bb0d52cd3d1. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/USY282300207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff226669475277aedb851c4e52a212f96d9564c6ae2d22df30e7ba306e94f55f. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USY282300209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e33979972be303858deb0edfce58180b474a2bfffd2a480907ff45797903457. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/USY282300212.
Metropolis in the studio (Virtual Live Ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8f1175a2585be1db712c833b8a73bc3de7c880d53b5261708f1f0c11c951ed. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/JPW462504778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06082bf30ab39e7f50ad4618c24454b96a4e91a055ec27007bb3cb465c10d95. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPW462504780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf91bbe2a04e1a102005b0ed6497feee0aa73825f56c3d9b056f81ab1c45716. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/JPW462504783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6518868fbb95e48e6dad2f89c43af4ec1103f45b249df987cf70969182de52. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/JPW462504784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1a7af64c8263b4ea57dcf8775e8f85d62d5770abe4d5c7d515be51ec892fbd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPW462504786.
In the Game in studio (Virtual Live Ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4ae05098a107aedb28e1a7c26f01d24ed82f515914fed0bc5f052cfe16933c. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/JPW462517483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae995ead51574523b1fcda192b67f88e564480e52af0d79ac414ab87e124509. 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/JPW462517484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68864329981a7b8fa2c6c6db64756788dbfc061c4115b4c30bc0b6a99406c7b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPW462517485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6721525369001b8b7742ab836b009fcbb8191f85b79968c95fbe50431398b661. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/JPW462517486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef836af84d1316dad5ff9ec3c0c4cbb0123cae57d8c4f2aa380dd8bdd84ff4d7. 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/JPW462517489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5a4398c8d61de82fdc7e56eec62077a07e34a0e541eacea02500ed2b22a118. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPW462517490.