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 0x6d41a26bd6854af1222596dc964d2d2984508ae04b9d38a33eec396fcd4f830c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7ad1cf9-e01e-4540-96f1-3ec7a3b7feec.json and https://artists.proofprofile.net/proofs/artist/a7ad1cf9-e01e-4540-96f1-3ec7a3b7feec.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 0x162f702a558baf22d2975b09ea90261c9348f4458c382894dc86bf158d5452b5. 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/GBQLU1500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ed33bbf224aa869b79e06b9102bed0df450b3df60d20acdc272eec83291cc2. 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/GBQLU1500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a3af21ffd8e35c300c31095ecbce044d27ac384cb14a07f4d780905b102e8f. 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/GBQLU1500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bcd47459b6cc373e7368e4e304e55c0450ce10102272f77f2fe9c0375b1d42. 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/GBQLU1500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c648e38697772fd59775c5595e9ff6a018c63aa6a42349ca206363429738cca. 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/GBQLU1500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd997fa26eb39ddbf0b75373b8c1976952644d64133e546786cede03826c4ad75. 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/GBQLU1500052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a1a243864586c6606bce19bc5bce6c35f166cadd3509d5dd329311e0ed47c4. 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/GBQLU1100111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad86e18650e040f1fadecce52ff1eec104feff695df6cf125b1a33afeb04056d. 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/GBQLU1100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d41a17b425a53e5305c566a087f2b13c3f06e950a891b5ab2806bff99e13f1. 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/GBQLU1100117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4ac1d0755e9866538bc866bb6acddab3477c4ed842db4b76991287db42dffd. 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/GBQLU1100113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf33bed723b9e9284f03365a7c57a50a6ba7990a57276d54fbd3d47e3828b69f. 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/GBQLU1100122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642670107cdea71ffd9d18a1ced9ce0c362a69af4b639c7c526b62ac1b9356d6. 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/GBQLU1100116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272cb5ced828d62fb98c9d8cf5ca29b945381ed67e55f71981379f61dbeb4fff. 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/GBQLU1100110.
Cheer Up Love (Worse Things Happen at Sea), Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe64cce409ccf70f4f90309fc3c56df4d39b15ebd45a716ffe779d4e27ebfc8. 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/GBQLU1100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7af5d739e7a40c69f07304500f63de47efbe7a56b214b80d8c46ab011ceaba. 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/GBQLU1100121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001dda3918c930fb67eecdf8a2fd6ce11e823ffd17d5b0193484b31640883e4e. 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/GBQLU1100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e415d9f0ccaa05a2c1a5086cd679f01389ea90e08076c0adfb573a5d02ebb88. 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/GBQLU1000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b331f4242be5a00a3ea1c47c02b37f71376d1290e6827bea3542e484ee0ce80. 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/GBQLU1000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681513f6185dad4ba991b78a0831f6940eef41f159244d0e1d10813b7bb707c6. 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/GBQLU1000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ab145d0823947d5ad658825ad1b76307cc12fd4efb09f35edd94d4c280fdc0. 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/GBQLU1000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9933ed794410a33fa482c5e2b2cc5d83ede854cdae401770c74fd784459a82c6. 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/GBQLU1000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91256fd756c103487d16adf1d017add493b4e9197e38acbe9c6566307641804b. 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/GBQLU1000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd05f9a4f87e3da97996c12b77e99dba00bbfeabf6a9abdd612242b3b5ab548. 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/GBQLU1000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2535352fa2c1ad483bf3c8b91c79edd31258b26961dcba948b313e430f302f. 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/GBQLU1000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21605a60324c5ebee6c9a7755bc7503573975282cf197894beac85f8ed084407. 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/GBQLU1000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522125fa389312e06a711314235b018618284cd76413218cd326db93ff0bcaa4. 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/GBQLU1900099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b27ad4b75c3a870607d4e07c4ef51f41660622679547ee1c2648b88c7b0e180. 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/GBQLU1400028.