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 0x2d6f8f8c8944f59a35ab1429e67041467202a57e36546f0d641f903b3604f690. 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/449a1717-dbd7-44f0-b388-d93aac6bdc57.json and https://artists.proofprofile.net/proofs/artist/449a1717-dbd7-44f0-b388-d93aac6bdc57.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 0x350ee62b60a19d4ad86ce10a8845ea08d10f7ed0c071b138d6e15150c8fe228d. 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/GBKQU2241473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0254117fe521fdfa994d03e12a62c49b53c49704efad15f92afbaa4b50577d87. 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/NLT2H2300979.
Disturbia (Hardstyle Remix) [feat. Stella Key]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94570962f023a178fe973bf072fbb02ea73bc7e9d643ebba982af4a25cecee9f. 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/CAQOI2200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe405af88e549598524ccec04a664870b79a592f7c2123efc6a859a90af72813. 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/QZFZ72193702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bb67489d07a580f7c142c4270b6c6daca1cf6da7f55a2a37763b91eabcf154. 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/QZMHL2283905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be924ece05bdb258aa77f07fd7ca8733cfbf5c1ee8db97034c386b49de8dde9. 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/QZS672219414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48d534ec722bdd1804c9829077d4cbf15441de28cb2a549e41b89a5586a20d5. 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/QZHNB2273128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a4e7c6e0bdeb0048f955218d877cc63555862f707734bd161576b734c67514. 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/QZWDD2272228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0d56791b7236bf2f9f1b90281e077cf7ebdfba3491eff4a435e3594f01fb75. 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/UKZGC2406386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51aac9d06f9ad27c5be659343860da4bc69552157d5c3bc8acda619fceada080. 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/FRR642201366.
Believer (slowed + reverb) [feat. The FifthGuys & Shiah Maisel]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c0851c5b6283a37e7c9c937c83ea470da614fd0abd584c08172b3a9d51c555. 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/QZS672222447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b159453135e7c5bc890f662d6e004700cbc647a6a37be094aef8cea1c10653d. 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/QZS642237597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef9abc03db1abcecc371acfe2ef42003aa439728c8510816ddc0e6f1a9708ee. 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/QM4TW2164884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b01ab44567bc976e760147ceea1378cc960a212d462be12f3d9d9e2c8305ca. 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/TCAFL2159610.