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 0x654138bad5089aac9d0f4a708426ac356eb35c21e8c262b5dfd3626215c484cf. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/113b8dac-a0aa-4ee1-9b83-99ce016fd20b.json and https://artists.proofprofile.net/proofs/artist/113b8dac-a0aa-4ee1-9b83-99ce016fd20b.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 0xf849c9b220f371992ed3b6117ff7b16386ac686ba90e614b1e1a21a73c2626e5. 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/JPD731300505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3877009b025b57d5a518ab770d4d9a4e5f9e6ab1b4b598c3b6a783be00fd0b. 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/JPD731300507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99ef267d2ddab67605acce7622555842ecd02ae0e2e3a199c3f829b25890e71. 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/JPD731300509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd690a6abc20e65518fd5daba66e09618185f3b56a1c60ec76ecd7f37621a736f. 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/JPD731300512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9189aaab7aa9503a298680015a842572932bffff91f14faaa99978cff51f033e. 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/JPD731300513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43023b968e09eb04963ae1815ea468059d0c095fded606575969f4045e82c1f. 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/JPD731300514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5e1756933889dff13c8d13a5fd987a01e0f47b81d1e3c58cd599f5518e1648. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/JPD731300506.
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 0x3cb3b757b426fb2a18c5512c9de69751c6e7526d91736f133b3f14fc7a276bcb. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/JPD731300508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5592f9d804f7cbb06ce596934dd84487187a32daa262faa057ea9854e5b6d6fe. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/JPD731300511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cd7814c3607f69d80d54d1fabbe507223a0632422363c853ca24707d7b8e15. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/JPD731300515.
Just Follow Your Heart - Hidetake Takayama remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3b4542affc74c5ea3959798bba91569dc65fda885bc797cf9c8f8d38e8237c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/JPD731300516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f813bfe92dd1833cd173d30195987fbffc35d1ca849faede427225774ac729. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/JPD731300517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db44d6711cd4168071f6652c4964ee7fbc8a705fb4f2cabce7f05eae81465ea. 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/JPD731500052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915361730a1e01f1f2cdadab4da3d4e5f44a8e5299465752c7ffb620e6ef6068. 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/JPD731500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab312d7540610003dd7945258cfcd6baa91c7a9c1375bf5b84c19e030fd3682. 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/JPD731500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc546e81dc03cf367191e9dd70eb81bc34d40531fb1f27df9a7cd5a716e01e0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPD731500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1900a1da568865f55bef5ca500b7eab2a03a2a6f34a5b98a05ed90a892878130. 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/JPD731500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713c378c07bf2dfbeb73c16ab747014b7ae7dee25965ac38938faf36bd9097b2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPD731500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3faf302b94b5902221ac871873ceafec4e33992c01e3c7ea8c49b7ca686d83fe. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPD731500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093baaba43964b638e296f70631abae7b275c8dcb0dcf745d3fdd1492309300e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/JPD731500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2905c6e1f0d87a712b2e1f891e47d6d02c035afcecc0bcf1796a6ba722d2ae18. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPD731500063.
Count Down To The Best Love - re:plus remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148b17f8e2c932cbb7851938ecdc2dce74e46ca6377adc609bd7c4f4bd10ec53. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPD731500064.
It's Alright - Anan Ryoko & DJ Chika a.k.a. INHERIT remix
Colors of Life by Anan Ryoko & DJ Chika a.k.a. INHERIT
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f496ea92df7825ac5c69cdf97c39a6bcceee31b69042b426d879988e597f0ba. 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/JPD731500911.
IN YA MELLOW TONE GOON TRAX 10th Anniversary BEST
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e817163b43fa5e5aa28789c6be139680760663eb1f934abeaa815c65403d67. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/JPP321600437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ca1578e9ac9b70e1cf02dd96ef895c8cc986d9762f2b1d775b189f80bcca8e. 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/JPD731500812.