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 0xc50d7da03af54d9fcb41f89a54eb634dec076ee53aace56f0c9b3fc913aa68fa. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/404b68a3-71f9-49e6-a7f2-f7a38e588311.json and https://artists.proofprofile.net/proofs/artist/404b68a3-71f9-49e6-a7f2-f7a38e588311.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 0x301cb3886ec17b2fc3cf889f74531872968e598aea3710dfc06bd36aa561c096. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZELN2300068.
"SOMMERBLVD" OUTROS, THE TRANSITION TO "BRIGHT", Pt. 1
"SOMMERBLVD" OUTROS, THE TRANSITION TO "BRIGHT", Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bb68d56731d4709f66cdec70fbfe04686e8d415649021986d2592d0b4e7b50. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:05:50Z), 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/QZELN2400087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dba1ebb95542f0a019d5275c4334b30e19860f7befc5745136023593e87fe0. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/QZELN2400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c473684fa9afdcec6439886e9fff40428babd0ffa165eeb3643d8b7992b5972. 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/QZELN2400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe686b6802fc2ad2c1cfdf8771580d788d7f30ede6170bc591fb85abfa896d22e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZELN2400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb441e221635882c1dcc48acde6999f9bbc207e6cf7d0f663ea95d5394a4262. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:42:43Z), 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/QZELN2300100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960ecffd86170619785a108e3018d64696245e20dd509423b7643c660834d4e8. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/QZELN2500087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7a95a0ca4a3f088bc00f80e6ad3b6dc130f8bff771312b25261d370b4005ff. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:06:30Z), 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/QZELN2500091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6a4b5776109e172be553c643cdb6fe94adfd66b3f5a92669a1c15ca4aeaf4b. 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/QZELN2500088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fde0a8f337303eb8a09363fa357dd6c409861108d637da441f666dfa3076f9. 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/QZELN2500089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960ecffd86170619785a108e3018d64696245e20dd509423b7643c660834d4e8. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZELN2500087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c308dec1fafdaafa41ae7d5d538541056907851facf8882aba35a5f726baada. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/QZHN82561389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe8ab8d93edf74e739987089a692bdb81e37da869356ff1431963c2052e2827. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZELN2500092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99601e42f547744b0ad3b37d88c47cf29281b1af73330e34babe8c1a437a9300. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZELN2500094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4736e3b8dd447c0cc4f286c7d1749032661aa685f6e9a62949e10e13b930ec. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZELN2500095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbdb3c43a340790a93715c256ee72e46b71baa72ccd2eb93d1825a803118f08. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:51:49Z), 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/QZELN2500116.