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 0x501c495e427f103c6bdaf83bdd1e889027b7a4bd5ff388d1cdc274aebf1d7b5b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76ee066e-4783-4afd-874c-78c128020a53.json and https://artists.proofprofile.net/proofs/artist/76ee066e-4783-4afd-874c-78c128020a53.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 0x8e5e7bc3de7cb087dad495785951538af852304d62d40f2c2a1116b9b5edc987. 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/FR9W11518518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c4a5cdb0f49f776b693b6a0816cb3cf016d742dfc9637d5b1705d818d6a9c5. 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/FR8Q11500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c81fa785f3e74e45dfd217797d2d0b3fc7a5674cb06113177e7a255eb7c1b0. 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/FR8Q11500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0895754dff2e04a765b746276509f1abd84085d2f7999e0bcbe8bd369df69447. 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/AUMCH1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cc58b4a182d1288192cc028a11546edd0c3ef0490030921a4fff9fed0f5e67. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USZ8T1574593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a13aa5ec8f6c7d8ef018846a57113ca18e1bd2022525100e77ec844c791834d. 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/QMZXJ1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a481611af380353350950ec4cfebbef12c82925110dba1367d9e4bb123f51b. 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/CAY9U1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6170559799b65d94e1d52ceab9bf8d09886d2ee1fc58e73fde67618ac88fed4. 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/TCACE1545865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67509afc1ddef1593e5c23e2f40a949949b3b1fc90394a6c9700267c4548423. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR8Q11500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de518f435285bfbfc4dbb69980b59e51d3469229cb9910a79ac105664cd1c09. 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/FR8Q11400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66af1b16f4d2eb88b40ed53d22b87628871418fcd30afcd1c027c6b5e89d87ff. 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/FR8Q11400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cc04b5a8644ac2dd4bdff9d7a42d599b7acf893d80b8b6a3be1f061b04425d. 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/FRZ111400901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bee826f929b6c5120f20f62e98da6b90e41b62c61f092cd4bdaa46bccc02163. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR8Q11400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f2db06ad16dc3f34999d5bf2e354a2c064294209af96c69cf078c7dca9b889. 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/FR8Q11400034.
Soul Jazz Records Records Presents Future Bass
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6643f660f1797469bf4d45ff0e2b1e3fdc51e175359445ca9f6061909da69566. 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/GBBCK1000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b43f341c15e3757fb59ce1658ff15665c049258d8d6ee5b2c6a980034a53da. 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/GBBCK1000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08097453e6b447b5b3df7791616d9e90334f0e689dfb9f6edfbce61eea2e90ab. 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/GBBCK1000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e43dff4522aaf7e56a02e4e4dab8790623407ae0ae767dd84cc5231b7d4204. 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/GBBCK1000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57e265e9ec180237b318b600b40ef75a44ac2c634413f6c6a8e2888af53165a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBBCK1000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88c36014ef984db51896ebe8784865b1b47923f6e0d20ab02b6007496a35434. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBBCK1000012.
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 0x12ef08c907a62c841a7dbd72df1a9833c2d0a3800949d44e6d4293d7df875cb5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USYBL1600664.
Stuff Dreams Are Made Of / Tortelli's Slave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e3b632d3b8d50441905a996fd7b397a082410e0467d8d323d4e7dc958acb14. 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/QMSNZ1313781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0b3429722bb5ddc45c9f99bdb1cd4cc44e1217eb3e2e624060e88a0d1f6278. 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/QMSNZ1313783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec11e720a0c6ad9b481f3d922d1ebe091a7dc9d6431f04a664cc0cfb3f6619d. 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/GBWTT1102101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d08353d7edf4bb476c148cad3495b01e44fcf699ee63e856cb015376d68fca1. 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/GBWTT1102102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2527dd844a057047a14fdd11525d56bc95013bc957413874e2432dfd54719ff. 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/SE2UI1200401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183ff7e74e48092ad29224baca4d340f5480e240b0c8c2e878695bbdf5c59f29. 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/GBGXC1300013.
Surreal Estate: Compiled & Mixed by Ana Sia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7821d1613f2089c54d17bb120016d14d5592169025aade6b229772777340c41. 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/QM9VG1400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7821d1613f2089c54d17bb120016d14d5592169025aade6b229772777340c41. 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/QM9VG1400101.