Roosevelt Road (originally named 12th Street) is a major east-west street in the city of Chicago, Illinois, and its western suburbs. It is 1200 South in the city's street numbering system, but only s
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 0x79895a55ac8c351484ffe70be1afe59b7c88016a0bf47d36b5d846574f67c978. 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/d732c2bb-bc1a-466f-a225-58e27d564ca2.json and https://artists.proofprofile.net/proofs/artist/d732c2bb-bc1a-466f-a225-58e27d564ca2.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 0xd3becee29b1333406974bb8643d613f8ce163df00ff564b2b400eee6eb29f501. Chain 2 (Bitcoin): anchored in block 957648 (2026-07-12T03:52:24Z), 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/TCABJ1210806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500239c7df7f81dc947500b92257d739fdb5dc4a3c141d79a55206888362fd48. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:52:37Z), 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/TCABT1407769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92cf6220feeb446a092e14ac9be4ad5d95eebe72fa5499054d631c7cdccb269. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:54:47Z), 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/TCACF1523511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f33000d647deb9f2301778df4eb3c9b6cd134468e1343704a52b1243aa88d9e. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCACF1523512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c7b3defdfcf1fdd625a7f2c3b80ce9782d2d2dfc3016a065554fde78a7657a. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/TCACF1523531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd01fbb01ce716ded0e3665f4e024091815c0c0193b31eb4c23e0ee6f2af00ae. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/TCACF1523601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec1b60ad4122362035c333c83b4db7da97ecba0c30773189ef50a26a1f920f7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCACF1523604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223831798ad840a89b5c30febf2ab8f1eac87e9a805a200388089d6c0ffcbb38. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:07:15Z), 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/TCACF1523612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8732cd561c20852ecad4840d4813c9b3ab27f3ae3bc5814a9096aebfba35fc8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCACF1523615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86b9f9fa6e4d055831665a50ff2609c63b2bed269a915bdb4f48323152b418d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TCACF1523624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffa92f5c8d30d5cdb781e9bb2cccd1078c4cf56ff04ccb4d28200625a7af51b. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/TCACF1523630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c506bdd99a24ddd97df21ae1d02d7b3af29959c140a2c213e8f98a18e8fb1ec. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCACO1674015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f219f99add6b032cfadd106ea1c8636754b5ec6eca698f8b025d491ed350f9. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:28:00Z), 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/TCACT1618522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5307c9aba3cd98dbdd31c95ffe342e926ab2d9e9e630db8d5f72602f53a4a49. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCACT1618527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb211ee5d97b2bb9741d05f316b100c379c97d9191660cab410caad328a4dc007. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCADF1728859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954233ee875d156f64277547e07a29fdd77e802e818bcc220191e831080134a3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCADF1728865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde44437d1d66855723025eb0f890a0d0950cd8b5a276c50f3f652e64f7510c36. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TCADF1728872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7615900dc33c20f5c98998f80d61977e504891b930b3d7169f030a1f9c5a534f. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/TCADF1728877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03b7024d713d26ed26ae24d4f4028b9f9e0956362770c4131202af4f4e69643. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCADF1741855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7ebb34a5b835121067098a14088e01b55087d4d91fe99ea5a3a6fbf5f01c9f. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/TCADF1741872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07ad6e49755ddf90d7d31a2575d94a4e9838d3193ff55ddc448aef00114ee20. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCADP1887580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8be3a054752b33e70b4f2cdf05dd3bfb27e5c0cfe061e874d54187612e8f23. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:23:30Z), 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/TCADP1887593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bfb13e589c308ebab654d10c8ec06015813f11417ea17da883b0af4587311c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAGN2248281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe436a1d35e41ee5a2e67c27be6c3d2357b141243b1ba8ab12f572c0f4f14e1ea. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCAGN2248296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13c399bbf4deb392b6f5544652aa06eae4c93e754d9ab5b73e08e916e39a70b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAGQ2247201.