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 0xa96d6e1eb01d6cafefa3e2215b2973f9a1e92aecfea8f87b9d8c8a7f3a69c529. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95aa3d57-cce3-4004-9e37-37007badf3e7.json and https://artists.proofprofile.net/proofs/artist/95aa3d57-cce3-4004-9e37-37007badf3e7.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 0xe6f0f182407182d9f12358a3acd23543f74edc659829bb15fc43f99d977b53c6. 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/GX8LE2329581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5aeab446bdbd5eea094a4261520e5525446401b0c13c02450f1bd34fe3228e. 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/GX8LE2362029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bc643399a6f04a29008907dcd629b2e404b91b6fc8780a8f5de6cdebacf4d4. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GX8LE2386804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ce1ed7557e3db7f186b1970c19db87ebfc9b08399a3d106fed7817d43513c0. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/GX8LE2301761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8801b34d11af6a8c300c92b2b3ab12915ce1be20d6b906bb8787702a8b70228. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GX8LE2307971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce08dbdce20702c983feed087fb67fb4f37ce1b00997797ab976dcac05674873. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/GX8LE2349853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00eae3142b896bf3349b0d6aec4c9ade0e1664d37182dde94f70b16fd2b4ca47. 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/ITN731018973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042eed16341a4a5d5f7d685db600849f22a0eb12e686de76847f48b4c42b44d2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:14:39Z), 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/ITN731018974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98b478f8373137436ad6b475ab174d44fec5e1760a6f6b75ab832624dac9583. 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/ITN731018977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c838e41610c12769578027d588df2f47dd5253817eb33b0c97fbf76f04c4f30. 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/USSM17700233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11185a0c5fc40e5ded5057d3881ccfb6415dde3563272d9af7f1228f7448f6ee. 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/USSM19916160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e5f47e129d7373a3c83e53d41c20c2a56c447334e975b94dce33648a561ef1. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/USSM10204650.
Martha Stewart Living Music: Jazz For The Holidays
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1bbaa6e4a2d08e3e836938969273a5d976d4316812b8a1d55af16eee9aa313. 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/USWH19101057.
Sugar Rum Cherry (Dance of the Sugar-Plum Fairy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4624cfcb842989dea24755715272c9a1494a0ff8f2c9a03b44b7365d696ac4a7. 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/USSM10504967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4e8cbb42cc889ecedf73e49db9118184fb5f9c3f83b67d967f890be57fab04. 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/USSM19701753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d007ef15ecbc932011bd453acf7236f9e9bef2e72e7764ad0bdf2646a08647. 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/USSM10210937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7f9c88cf722be55bf01064f518d6bd01d3c12f5500ce6f74d1f923ca0909b5. 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/USMC15283440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d3fb864536dd24f336f8597c34c2950028e1a211aa5ff41a45e532322b9402. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USSM19912463.
Jean Pierre - Live at Shinjuku Nishi-Guchi Hiroba, Tokyo, Japan - Oct. 1981 - version 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad72bb435aa684f01ced20b3cdf658c82969fe52556fbf866cc38bb689e630dc. 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/USSM18100590.
Have Yourself a Merry Little Christmas - Long Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519d2b032b79668a79597b3d584c8b49949b49d6bb158998842b6f34ac7e9791. 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/USSM11103501.