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 0x7e56b098e48e030c426059228b140ec54bcb4197f44af8d95bac364f77f7d826. 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/0963ea5e-4ed8-47a3-b75a-05d9c2390741.json and https://artists.proofprofile.net/proofs/artist/0963ea5e-4ed8-47a3-b75a-05d9c2390741.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 0x4b396891b251f7fd76a58faba0496386521a8e744dacdc794978d497ac2b1b88. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QMZYR1550004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd046d7187bcb03bb0e350c1d3558092f6d4a76dd95854c292ce29523782084a. 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/QMZYR1550462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb41a7a03268e66b114c0ff9c440f09ab41b05bca04db8b96ec039d9eb0bddf. 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/QMZYR1550044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3481a5f3f7bf339d5ab66503cfd95369ae91752ce96dc953e0f630d3ddc9509b. 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/QMZYR1550136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b6a458a349f2c95cd6782aebe5461b20dc9b83587cdd6862bc962ec4fa89c1. 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/QMZYR1550278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509472d981e28298fca03a9142068802b3a4c4bbea460652a282467b8510aa42. 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/QMZYR1550464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf998ff6223d664a164fd1bb083ad607ccaa7dcb52b17c9bb4a1ebc58f2483c9d. 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/QMZYR1550285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc395e64ece2d4481bb0630ee40d251feaf24dc190f3d718e5f34cf62767517e1. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QMZYR1550304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65085196a62e281738f8c07a8a7c125b0427c0d5ff037eb5aac9a6d5935e9580. 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/QMZYR1550465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca02d3b034ee8f4f1c37ad171915549c187e54d634b85d4964426c76ab3441d. 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/QMZYR1550447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4297bdc1fa709562332e0285c3617e2c7208ce3005b8a0ad028a4ecd636292fb. 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/QMZYR1550453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c94d5623a4aee6bcb554352c9154af693a912d5a5573f7bb506920be149687. 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/QMZYR1550182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d0c23b22a2bf021ba6cc187f089dadffb3df5f9720d0f37cfea17b2a16cc2e. 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/QMZYR1550467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42228377b91c5b36403678f65484796b2c89f5295b82d70084eefda2a626e651. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:40:57Z), 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/QMZYR1550463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a6a8c8b09f5803242cd5379887e3dc2d1b03d9b449aed23b6e60f59cf01496. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QMDA61800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328d5ed77635079c2830f9c9ca1d78c7c62c801db3d395f308b7ed06fad89332. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZARB1894591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d70a1f0f6bffe1b4fbd2254699b433308994ba1cb4bcceee53ffe76897f3db. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QZDA71867467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5838f5879583470649eb63ab55547aabe7d2e5601c59035bba807148f21bc5c. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZFZ21943169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeecb44e2f7df67f5783695fd1a256f857d110309754edfbb62792d90e0939e8. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZK6Q2216256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5aaea202d65c0ca5018c5199e38084102c32e9f243b0f9fd879941ac58ff1da. 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/QZMEP2252692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16780b1323923a03d2670575f4fa9437f8d2adc4e39c165483e6dbd1658fe59. 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/QZRP52165236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d70a1f0f6bffe1b4fbd2254699b433308994ba1cb4bcceee53ffe76897f3db. 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/QZDA71867467.
You're a Fucking Bitch Hope You Know That Shit (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28318739e29870dd1346b1acdcf110da356eebfa21de32f22af702dd8c273ca. 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/QZFZ72102793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1b68657ea3329fed92440f463e254a087401fca8ec765519d457e9dfac4323. 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/QZTAT2126224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328d5ed77635079c2830f9c9ca1d78c7c62c801db3d395f308b7ed06fad89332. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZARB1894591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f638b25070bbaeb49722acc4c76686e32b9f0faa578be914e895784b4a1d52. 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/QM6P41958431.