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 0x8cc1c011b07eb92af119701254a1f38fd7e821046b6e0e44a53cd804bc30f469. 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/02705316-e540-4f16-8205-824312866b18.json and https://artists.proofprofile.net/proofs/artist/02705316-e540-4f16-8205-824312866b18.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 0xcc79ea29b366af04561818e3e792e59d6e61a348d15fd433a29117e18b80d2e8. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/TCJPP2107340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd617f3ea83bffb56373b3dd45c9a15af40c755e24ede4d8b7f4e96b2a98051f5. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:20:40Z), 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/TCJPP2189991.
99% (feat. SALU & RYKEYDADDYDIRTY) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a957f3b531f59ea9304b63654f0f785e68d143612a0b2849e11bf9d19eb142. 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/TCJPS2222927.
溺れそうなほど (feat. Billy Laurent & Masato Hayashi)
Oboresounahodo (feat. Billy Laurent & Masato Hayashi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd852a7fdb60df95c9ee479734dbc154ad9e346f997c0ffd8b43fba8002866b11. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCJPI2554449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3d16a486fea533525c31b007aae089da8fb69e2c51255efc653318cae925b7. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TCJPI2554530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d5a1380aba1aa374ca820950d195d4a173be2322d9ae403f933ce035d7e406. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCJPI2554556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b2270025fb43b316ddc590a5284f3436b712959270cb8a45ddb31e928f9288. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCJPI2554616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395c02f0e211269505061824a4ef79edc2dd4ffdee28a22d4956962b6c77fe2e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCJPI2554629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4286fec634245e1b941316645a63122c50c3d346f7f49842d15c3d62f7a0c916. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCJPI2554674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709d6b9a0c7daca72a55bf0dd9b71f6da1476db6767bf4a5c466487a1609f4cb. 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/TCJPI2554755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9884ebecfd3000153af5b4b8ffd09ad8b3d31a705b2f577ebb6970624a765de. 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/TCJPI2554829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fe633af2c230f565c0447cbb9f0b32ed53a3068a6bcff82ab87204b74a41bd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCJPI2554836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf695a1e04a3015d3d104cfcefe89e592ad3844cc0e96a6bb462dd9cd2d0931. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/TCJPI2554879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41532cb745d936d16da3ab227854b2c3b1689648a3162bbba25cdfe413fbaa2c. 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/TCJPX2364450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d05e45b6edf9261b646b22f5f573997b32047f6449f6f2092a5497901c982e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPA2490971.
Manhattan Records Presents (DJ KANJI MIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862bf1fbcd75fe3b5f0505427bb9a6cb9b1485727b977afeb3148b9682c402e8. 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/JPM591001513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc945db49d41f5dfb21a1adbb4f5859eabdd35993546fc6525cfb917087c8a1c2. 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/JPM591001310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc945db49d41f5dfb21a1adbb4f5859eabdd35993546fc6525cfb917087c8a1c2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPM591001310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29af7a2706fa0271ec18738af6f065cdc3c2cdc79214c5bc63a579a33a1c8000. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCJPX2306435.
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