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 0x32a4e8e94c897770263d77f505a4374883c2421fb12a26d63f957b8a7ab47be1. 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/afce6924-8a78-441e-b0ef-60932a3ca6f5.json and https://artists.proofprofile.net/proofs/artist/afce6924-8a78-441e-b0ef-60932a3ca6f5.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 0x4cdd4e37fb0c48f3deab2114b5ae0d9fc7f968c0df6c1f516afe97ac9af7e1b6. 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/GBKQU2441288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb99e5af9c818d16192628d9ef3a9dcd3a52834ecb1fd37279d55e3c10efedc. 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/GBKQU2426586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463ccd394a804b0856d6210e9161ec8cc85972088479cdf90e3a5f39d7f27ae3. 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/GBKQU2417144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3079f88b5f01ddab77435d52e4314228d5cd10bdae0e327ef0ed749ec7149d3. 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/GBKQU2387651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab7e510774d9f5afdc8ef78f25174b07f1ff8a21f9e9ec94c05844e89696471. 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/GBKQU2387644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d962aeecea4bec9b70015aa13fb9ad393ac7f29bbfdf8609820c144d2e71ff9. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/GBKQU2336105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069cce2e4fb0527098da500f324c2e23d37f206c6922fee4143f2191da0b5db9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBKQU2324158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf234019705375d980df48e55284f6163ef57e172f0445dd4387a9ac14e218eaf. 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/GBLV62203130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcca7bc7e03352dc779f1edbff49af15216a2095c8faac6aa8b584f344c644c. 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/GBKQU2265378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cad1a60fd2a8982ba15ed456bfa5579a2643228a4ecb2c9b43e3104cf95a91. 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/GBKQU2236497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce6c4d037a748f0b83a47a4185158aa1e9ac118a37f5cd70c6b0381f9a894dd. 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/GBKQU2236498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f0a0d916a6cd29dc7899d03a4a019a872c595847e32fe24828579e70c9c64f. 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/GBKQU2236499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dcaa4c63c97fe1f5c381073297a6bcd1fb3141772733fcd9a008bff345c2b5. 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/GBKQU2236501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8b5cc57bfc7326828260a7a99fea161750226c9ce69ffddf12cd8b54392141. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBKQU2236500.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ef493725be565e38a13c3084addc347764e6413320cf2225738e877689cdf1. 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/GBKQU2233898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a7f71d65f572ce2eea624fa2feafae1da14b4943eec5e37aa60998eda5d9aa. 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/GBLV62118642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbcfede808da8a499d422a750fda0ac1635ce1c35054dd44832e4d6f24df6d9. 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/GBKQU2179356.
Diamantes Rosas - W.O.L.F. Funkadelic Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01731402471835bc16aba29d02452919417fb0e439fa67841fbad0541a3523da. 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/GBKQU2179357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaee9eaf9ac853bfcd53cb23d0d87045263e0843e4718bf6c49ff8b19f8a85c4. 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/GBKQU2179358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5fb1c8123b6a5b92045e408d00ef32c4a8f7d8d00181f5c7d523bfdebe46e7. 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/GBKQU2179359.