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 0x19a996cb0500d98294caedfcac0fb4b0b28fb7594f52defd16bd9543b35fabaa. 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/f257ca35-9c5b-47fd-911d-94a79121cc59.json and https://artists.proofprofile.net/proofs/artist/f257ca35-9c5b-47fd-911d-94a79121cc59.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 0x0e80ca0753960a6139d688e9f59249344c5a64d43cda99d8838c950138baccd2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/SEVUE2200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c3778ce479ea28a7e2b5a5ab867d11238168db9ff485de395c2dd9ffb946e7. 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/SEVUE2200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbf64b6ce6beac830f1e47490ad939de8c4aa9594bf1adcc121f2c5bdb54398. 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/SEVUE2200303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74e85a81b89845af8bc301739adbc5c0d383a0b1a000914bb3323aa7dccca53. 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/SEVUE2200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c4bbe2ec6c3cae90e4c0a28d85913591d63ab13b2244f9a3027041bbbc7f1a. 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/SEVUE2200305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9e5d55f5921b0e8964220c0048a06aea128760f308d90c86e04223bdb85935. 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/SEVUE2200306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108bb3890473cbcf3986766f2bd38a1503a5b41df7ef292d745d130108aac10f. 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/SEVUE2200307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeef02e926b234afa90a281590b20a202dfabef7108eebe163ba80ef1ea38f3d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEVUE2200308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31b2a19084a79d28c2c1353cfa3aa9da128a58f23dcb221455006f300304a00. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:53:42Z), 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/SEVUE2200310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f27d2d457460fbee0361bdc3f1419d99b1914a0d496fdeeefb59539ddc320b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEVUE2200311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc992f62ed97d749273430d8908fc0bf04d3cf0301cbb671eec348c904358f3a4. 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/SEVUE2200312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b5c2d3278636afff400506c2de330d0902481e947517c03aa0d49a895b52b0. 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/SEVUE2200314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe788f945f3f30a3baa53075b0eb5ca06fb7fff72fa16f6c3dffb9449dfd72137. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:52:55Z), 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/SEVUE2200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf0e8df9501e647d53af42846b191999497b32047ddeb276b04994c3c2d5495. 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/SE3OH1737895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299db264f9a8fa9d045e76ef957ac68eb6340ae06727fdc4648f27662e156d96. 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/SEVUE1701802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5d91c742245b2dbf4abf3ff873a2050653297b4f43e4126b83924e9a050af3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEVUE1701803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a25c32bd58512fda06a566901eaf43f8d71026bcb52cd69be86f9ec62d196e. 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/SEVUE1701804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e666e4af90e685475e5bb4b924f0ec680ec90627573bb0679dfa003aa8caef. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEVUE1701805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ce23b88285b434b0768559559347c189c89ca1269565db4a272241ca7ffbf0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEVUE1701806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d752d22c2c8716aeaab710a2292d40a8300ee36f45d6df4c93d02e670f87ea4. 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/SEVUE1701807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07cfc20500c3cce800d5747b5890c97ab6473bf24a1a3fe369ee57dd27b46de. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEVUE1701808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf406e8977bd4f44ec2e3f0304b2665e4eeaf72f7a7478a3654d7b93b78a42ef. 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/SEVUE1701809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501aa5cb60d577b90f820f6a9c24cdd6886d82cbe76790126e7c3fdf4cc314ef. 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/SEVUE1701810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eafdd12cdfa9e33c5e3e8311953f110e5c9d16ea1b1059abc045c5734e9035c. 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/SEVUE1701811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a527e4b00108568606135cc14fedac74e03ef29b07683d514d046b5e632ebd3. 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/SEVUE2301101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fb46406fc13fae9537b64289935743a4e13a0acc59dc293c4516b6970a2dbe. 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/SEVUE2301102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b5c2d3278636afff400506c2de330d0902481e947517c03aa0d49a895b52b0. 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/SEVUE2200314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c3778ce479ea28a7e2b5a5ab867d11238168db9ff485de395c2dd9ffb946e7. 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/SEVUE2200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d351b63aec2a8c867599e1c0517b86477d91303fff1799224dde74bec71850. 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/SEVUE1801801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95ed81ce935483f76e7ac53e33b63994525a9c21f26a511b13767255c356832. 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/SEVUE1801802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11624fd97aa9890b854b522222703dac8dd63034801279ff6940219a38da87e0. 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/SEVUE1801803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35761341918c71b07f6f227128d3fbc64b1de33ead673bdcb7a433443191b33c. 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/SEVUE1801804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1e3f26d681cdcbd35e08ce0d70c136bb1253fe56c14b30b7f33b5281f88d67. 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/SEVUE1801805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb8e4330ea6962e9c3abc8eaf3871f0f7f095ad20a86d7fcaec0cd34ac59048. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/SEVUE1801806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d351b63aec2a8c867599e1c0517b86477d91303fff1799224dde74bec71850. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEVUE1801801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d80222f7ead9df44b68ee0a976f9ac39a87bb16bfadd9a6df1daa75f2e2f79. 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/SE30H1605116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3869cd807d926be6b8458b49f0936cc13fa2db05530090c7036af737acbd9b02. 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/SE30H1605117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7058f920325a44678f387b5daba5770ab4937f75f795771eeec8871909a3b5e0. 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/SE30H1605118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5ba535f484435263b601d06d73ccb3f54357c05519681ed497fffd44164976. 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/SE30H1605119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bc7c44f2f729a865d8cdfb854e698090384bdbd2397828eb298bbd9f49761d. 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/SE30H1605120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8757f308531bce766ca6a2fd0e48c5c984dea256dedf52a3ba1c05d552b5fcd. 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/SEVUE2500203.