1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x6ce2ddc0f0949b1605503ccc315451a0c98b2824cc149cd386a46c76694f0131. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/183b166f-7a22-49de-a5d6-8fd697e84410.json and https://artists.proofprofile.net/proofs/artist/183b166f-7a22-49de-a5d6-8fd697e84410.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 → block OTSBitcoinBlock must exist at that height 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 0x12d4e256104c8bb7cc22e73b17865f2dcf7438cc1e2ac19184be8c740419e98e. 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/FRX201978028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee1bd61501c1776373645e1947711eea6c176ed429998fcc5f00a1dd6b55602. 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/FRX201978030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d4aa5466fcf78a96d03d02c69365a4d28599a28c4e75775518fd5db59da982. 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/FRX201978031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344900bc9c1cbfef15d8fa36345c4957a01251117eaaba48496d38a6cdb0f478. 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/FRX201978034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdcbf924220200e9953d20e3dffc2203e7f774d2dab3d55168193fc41118e2aa. 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/FRX201978035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f543af0dec9743d2b09aad338e8eee377bab444dd4839bfbec163f9e027975. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FRX201978036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aae7a6ec65a9c8c2aca549cabac8525b844194d85b879bd9be67ba4d75978f2. 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/FRX201978039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37d9a087825f59c0cdddb7bfe090d9bb14af4bd1d7892baebfa6eb432967346. 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/FRX201978046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd632e37b44f7aeb075b43594651a5ececaf85b9e157f39c19b71167ae53d6fb. 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/FRX201978047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7fa892b17113f567101f7c7c18834bfcf5e313351808a188390fdb547c2ba7. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/FRX202086612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c2f113389528e9ae3fd29f61221c9fdf20f85d0ee00d1a40b4cf229de4e16b. 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/FRX202086614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe68c30304d661712687e1d0099083840a227da66cc0604497b74ec07582fd7. 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/FRX202086615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cf1be0d217703f0ce740eb610a60c1c11ee0acfcd8a3155573e70b89fcb99b. 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/FRX202086616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253ba560b6faabcc5b12e6fc1f103963b43b203d85910aa4d5d93e0b664cb0b1. 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/FRX202086618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab27d5f200c7b444dbb5387ea8eca063ac0c8cab90c661895635c77b75384bcf. 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/FRX202086619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64dccef6787b0c0798718ffe3d92cd9c0bccd46d49d1cf478a78123b0e37feb4. 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/FRX202086620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3a078a0c6ee068e8da1c6d5f8644818c3d73693eccc6f88cf8b44cd4fa328d. 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/FRX202086624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7a90766ce530a0b33b1463d19ff52a5a5b35ac8fa86b81418185260dd207db. 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/FRX202086625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025e11be75067b4b9dc71af3d6be2c666ac29a9e69ba46156ed70ad095133b34. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRX202086627.