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 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 0x84bfffd3771fe9b618172ed81ce78b67fb10eec6a96825c96e2a30bdd774df8f. 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/d27817d0-8295-41f3-8e0c-2663354b9db1.json and https://artists.proofprofile.net/proofs/artist/d27817d0-8295-41f3-8e0c-2663354b9db1.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 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 0x45984575c20682b4164e75db5d79802f175627da05d4513185fa90a057473970. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/GBLQT1700059.
Sleepwalking (Black Man's Cry) / Natural Mystic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243425cd042a8a74351c5aa10b94fe1a87dafa722cc477a8ab1f6934c8288b9e. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/GBLQT1800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda329fbbd2981ef045b66719e1856148739945481ee92cdbf24fa36d95fb480f. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GBLQT1800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3dadf96966bff4671b1255b4026880cb2f05d79a57db4128800453c43e8579. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/GBLQT1800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd2917adc87a7e8bc7a5c1ffec8996344199cd946b8bf7c7b6f747f45c20f1e. 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/GBLQT1800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d16a80912d156662f5f6f96efda861bdf8da1eccaebdb52fd164a2912ed4f68. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBLQT1800094.
Heart Rules Head (Wu-Lu Remix) / Take Me High (Jonny Drop Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c5891faa5d03f895a5848992ed3346113e6425b2fb4ed46fc8d815feb660e8. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBLQT1900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9aaac03997d4e2c191f177d60abf7082c6becb30c36d5f05dfee634c1066016. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/GBLQT1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeed66529ded819e98c8b766968930a963cac30d2d3bff2bad5fd9ceb607831e. 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/GBLQT1900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65ce1f8d2727438c4d516940fcf56d847588846322e3cc11542d7f6b10a8141. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBLQT1900040.
Watching the Stars - Lagartijeando Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4317b65fcd39f6d742d308445936e5eb6da0370b862b6248921ced4457a2e4. 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/GBLQT1800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa15959278798868029a12fac380afa8cd92e600e07bba31a80e1f609e4f7582. 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/GBLQT1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1da537d8acb05128fd4e8d8806d455a50d87810a5df34e88ce9b7947b07b61. 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/GBLQT1900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aebe827abebe6ea9ab6bc98dc4653688ede52dd248e0bb2c36e930278c8b6cb. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GBLQT2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99445ff4083f496bd7b6c08f2fdd99095a12246710f4b6b0c5d39b4541b1251. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBLQT2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e67f0b65e552a5201cc08fc7c416ff95c6664e89171605b6d59c3876ca9aa8a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBLQT2200005.
Soothsayers Meets Victor Rice and Friends In Dub
Soothsayers Meets Victor Rice and Friends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250b692382cf374565bf9a4f220d273c83d589e39804d97e9437371f7b0c00c3. 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/DEG931300410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105327fe3f9fed7771c21150d380c090ba94252df0c4232113c43abcf27fa1bc. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/DEG931300412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1f2ba477d3c275fbaac6ffbbc9050c6428d91b9f15aea4a669c8dacadc7a58. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEG931300413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97a49a30d61b05eeb78a9d33ecf27f1c602f7096ddc3c8e40b3245d9f77eb8b. 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/DEG931300416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3edb30aae457554720ba19558143fc7bdf5f48af3784084faf8868eef9f1806. 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/DEG931300420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233a620def8a0b541ff6fc5649b59c38f430c1d19b4bedc0325b3ec33148ffb3. 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/US6QR2200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233a620def8a0b541ff6fc5649b59c38f430c1d19b4bedc0325b3ec33148ffb3. 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/US6QR2200061.