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 0x9d0e440804043f861bb8da7a539511963cb2fe27ffdea3584af9dc0755acd325. 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/df42aaf2-9f80-4c38-ac62-a163a2743fed.json and https://artists.proofprofile.net/proofs/artist/df42aaf2-9f80-4c38-ac62-a163a2743fed.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 0x0ced926ee8b537a1481f73511bce7fae9f01a0e4c55bd5157dc9d14ef8a0602a. 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/AUMEV2302019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c31797a2d3627e88d9582b1ccd6f5f7e1df1c05b7a5e26bd262c9c41fefd550. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM3DF2298218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd12fe4c9b88f690758e810b02cf72c9736a6b5a8b7046c0a65d8cf1638dbca7. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:23:27Z), 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/UKZGC2401713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc699785803f7c3035c332c04d4e527a6844936b33b900e3db3ddc9cf35067e. 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/UKZGC2402465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83a45114e5c08da0c6efe82ede9be64a983e5333c7619604b93450ca69c8044. 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/QZPEW2428028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5a3c7f85514ae0b92a4e516343ed4cd2b952680c41eb4d31caa22c9dbee6e9. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QT2VB2419287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a583b0b06e2af115a44339045e7a049a8a1545198ca15014b14f2f13f8d8b9. 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/UKZGC2408583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60a2d7ec156791f1d2b3851abeebe4b6d3a19f3ae6a2c42d9a03e4fcc8d2037. 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/QZS632495751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a130575eabbdcd3e9a991ec5d894621f4acac1e2033d756b01f6cd4aa4ae878. 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/UKZGC2408176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6f1c4d99eddf80dd9a852ff4e1d36b631574ec6b4abf1c733a605e652aa9ea. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/UKZGC2408475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48221025da5b92f2fc731d0147865b88a09def1b78e69c876bbdd9c53e2a8e0b. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/UKZGC2408853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677335c68adeb143b5dcd512fc62b2847f272e086076eaa0896c05c4a135f78d. 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/UKZGC2408845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e0c8908dbf160a1e98356f5c6ec843a69700cc211d92a1e456303510301db1. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM3DF2416930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2346679af90eb949ac7d510178600e447521d0dbf43b3dc2810f9ad00324c7d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKZGC2411137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda415418e86629bc3bf804d4f8003ec1cae267375dce942dc9d5691b666a518. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/UKZGC2500885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c484f1e5e7a7113e1c9f9dff3ed436b800a95aadd9eb04d2d256cafe5f61a0. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/UKZGC2501030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcf7c032abc7bad117591343de0a718bf23f937f45c761cfe42ebb74eb1d330. 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/UKZGC2502312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98924373292982ee31ef701c38482acff81d62621bbaa21ff4d08dbc4b7cceaa. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/UKZGC2502680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4233570e73db1cacfc9dff606438fa590bcb3ce234daba5927b061c6c10b542. 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/QZTB82591407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91271353b677f6bf6e42b6e3abe047d2531467bf6f470853196abfa45968625. 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/UKZGC2506413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ea54e060ed744cab95325dec390dab3e4f9048f875c49f71b87b9357579b33. 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/UKZGC2507206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b84bda190c720037116c48732179d22f17810b0722f46e080fa76b9ddd685d. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USANG2279436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e72133a7acb1b27fb75322d71c71452878dbba36e0f92c8ad8a3ecaf6fa453. 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/UKZGC2407508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52447e6449e0c60b8ef2ac311b298159664039bf62b57b7bf9101b7c2434c4d. 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/UKZGC2408744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcf7c032abc7bad117591343de0a718bf23f937f45c761cfe42ebb74eb1d330. 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/UKZGC2502312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbede99760e02d05dcdf633c3fdffe4ccd71e07b24f2c571ea269cc380cb95fbe. 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/UKZGC2502321.
pov: you went to japan to see the cherry blossoms.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c484f1e5e7a7113e1c9f9dff3ed436b800a95aadd9eb04d2d256cafe5f61a0. 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/UKZGC2501030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2346679af90eb949ac7d510178600e447521d0dbf43b3dc2810f9ad00324c7d. 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/UKZGC2411137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3817b32d0d7973057b716ad5a8c085c0b424d1794a7f470d4a6823fa93cdf9. 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/UKZGC2411156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a130575eabbdcd3e9a991ec5d894621f4acac1e2033d756b01f6cd4aa4ae878. 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/UKZGC2408176.