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 0x7088c07f7628c90429f9c909431234ca3da6640b3de70e1f1f33f583f1a225d7. 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/4287c400-fe73-49a3-9c70-7dded8febe19.json and https://artists.proofprofile.net/proofs/artist/4287c400-fe73-49a3-9c70-7dded8febe19.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 0xccfd190bdef2e2c7e64fa5e46197daf327d59f5dbcc7f86d7ca05b467de81960. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:02:53Z), 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/TCADG1791983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc26b6056af56b69d7c45d2f6e8bf688463e63e653230e8643a673f55d093a9. 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/TCADG1791985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef862c9b6dfc9e57c7da073787253364640cc1b4e5f8b214bbaf4db5fa5800d0. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), 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/TCADG1791994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b290234442a67a9d5ee25e0f80e624cc7870d0d51de92b0a8b43ad6509c0e2f. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:30:12Z), 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/QM24S1832885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb0187241b73a023046899b91823e7d9abce634e4e705e35dc6c04704a00b1d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM24S1903611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62b9094e744d56b097d0ded6d39b6eac4204059add45d70ed5e558ce5590c08. 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/GBKQU1949168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594b01a28394b458399c71776b74feb1402dbe960d5c89bbd8104dbfc1ca2711. 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/GBKQU1949169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0838a00baec736e636684aec54f845ee8d3ca7214d0a281c43b07684bfbebdfe. 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/GBKQU1949170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07e273c248af5437ea18cd13c8933c4991998cf4d9a9d7c705d9804be3bc4e4. 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/GBKQU1949171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1555561b6c64a9e375a9947d7bf7f0d996e09b48cdd616f54d213d5ac5cc7f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/FRX282210844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49314fe907a6f5192d415c4b503a2d3ae51163b1941c4d9b3dd5cae04ca5fc3a. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:17:20Z), 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/FRX282210845.
chillhop beat tapes: Allem Iversom x little blue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38eee1df53dc69fb1a4ab4a2d723cbefc0eb0d3d850697e7a26fc963be19c197. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/NL1LE2202744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0603f039cf9b15db2b33dbfeb7e3446666ddfe076d03b42ccd525058148d8901. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NL1LE2202745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b4576e247c620c26974d5d19208503ca6d64908efa7a0d96afa7243145ccff. 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/NL1LE2202746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f5194b7c98886062e1ed0472f01bebd03db5b151e829045082acaa4eb3bb1d. 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/NL1LE2202747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104061c47b21e1e5c48b5b2fce7e183807cdda131074451113741199ffd36131. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/NL1LE2202809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf891a5f8b7f78bf11039737a06c99bfcc1ea0f5ddb5eab4cf1619741643d30de. 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/NL1LE2202810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d836c83dabb987289fc6d39049388911c3f651add86d6c6447a592f9ef8b7a. 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/NL1LE2202811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abb7af4bab5295d82bfe5c2d922bf5c59f1b43bd07300e1ed996a8792de0a6d. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:24:23Z), 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/QM3DF2220093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ef57d6410c26b20d00157fa03eaea104127066d0b389f31fa45b49b97ad26c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QM3DF2214967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a7d32c44312e91bb191d4759f719052302eb9c13d6b5a35f6797a2094b3244. 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/QMANG2213280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08b6f4507f9f602214cf4c51c075653b2032ad0c4d1c1964f969619ae9eb36d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/NLX9G2400426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d00fd6bf9be3e81e75693104e973a4a08a403e2db2969c289d636e1f8d6f43. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/NLX9G2400433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87a914d1eb39fdac3047091862b82b6da6f884da83115239337fba29b72c15e. 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/USANG2465672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f907a95f7315327229b2e63020c766bbb77f2d4475edc3b4b99f4f2f60054a6. 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/USANG2469448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b494b04cfb42fd57fe251beab08c67d3b1470562f9a0db231364abd0b3686ca. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USANG2465522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d84fc0c9efc9194bc24ec9b069c339e50fbcf5973f4f02720eebbc5ab757144. 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/USANG2487451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87193a59a1275b946e6a15bc5b9bbf2159aed7b5765faba730364dcb6aa2b0f6. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:48:17Z), 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/DGA0T2403246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ecc22d8fb00bd1bf799ef938d917cb98724373e02c9dabb6877a78bc2ae09d. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/US3DF2520483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7603bda503ced1c42360b25fbdce78a20c28f48861fe18b183f54f3b27dd1b11. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USANG2487452.
Lofi Girl – chill beats for LEGO building
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029dc326219a7481bb49683484b1c2a0af4c324f1e7b55bdae46f72e845df096. 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/UKZGC2306980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11c9357434deebfcb70bd1a5c8cf4edc99d056589f09efe8913202f4a0e91e9. 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/QZH6S1900418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf8dba3d46c4bd39991b1f5205e803f4c964bd098cce8a2ebe51785d8810cb4. 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/QZH6S1900426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb20f2635879cefb8ca4a6949a5df96651dd7ed39ba2592a2c62232b798e522. 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/TCAEZ2059082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad18d7fa43fb9db674213a58f3f0ec050dd2065a071256f16dca00e32a8d8ab9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAES2036506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1185e11b064c78973a69c63d9d721fb7aaac981e44972ebaea3debf519005c0b. 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/GBKQU1978836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1185e11b064c78973a69c63d9d721fb7aaac981e44972ebaea3debf519005c0b. 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/GBKQU1978836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817cc30eccecddbc95fcd7f49ea8d801343707f676b45b51ed379a7b6273b584. 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/USANG2498984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5a930e37ee2dfb1a8c1c8099bebf36c22b5428d0d969a8fea8e27c8715fa3c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NL1LE2000510.
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