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 0x4fd4673d8a09815af5e6d2fdb9989f77f06fa8b4dfa27a19896e379ec408e3d0. 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/670191e1-a391-4bcc-86c9-583627138d7e.json and https://artists.proofprofile.net/proofs/artist/670191e1-a391-4bcc-86c9-583627138d7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
star aligned / spend time / fall asleep in my arms
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 0x272f844f069d5d6b9f779ae944ed30123269afd86ccad864bf221ec20840e3c7. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/QZS662280957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0020425758f0054120d0f1a5d0869fd9fabcb41dc27a71454f00292edbeedf2. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZS632250808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a87522c2381f52ffbd02c7756bfbca8548ac13195650be4c8532929ce0460c5. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZS652226873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24873c78523a173f4f972cf25d05ae44054d3fc1b13a0d3b47c08fc25d9b935d. 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/QZKDK2397768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e12868c5f63565418467b2390e613d4f685cf9531683936906601d3ac524b6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZKDK2312371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102f6aa7f5637c4962441e7f972f9d83982a7145b047bd7f325aa414b813a015. 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/DGA0P2302117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b40d4d131ddc461bff18475c1263233060e8e3b3a99b30941b15d9d13cfc5c. 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/FR2X42436044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33853e813af8f030a3c61eb3e1519206c9d5c15bfd605c36774989c0899c9e5f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/FR2X42436045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339a6ab30df65a8bb61d534beb7cadfd6530e7df60cd55bdfd62aed6038bebd9. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/FR10S2439510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271c5a1fe75b4f479415735bddfe44291b1d7a4154bb10b26544a9c7925ce516. 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/QZVK62300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ee976a412537db0f43f99d81ee379ad5db7d28a65271e77fb319033579c7e1. 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/QZVK62200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24448778d2a61912e31bd442376a4035a1ef1db89a33b919cc15b2da08195ae. 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/QZFZ42364970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d65c3aed9391a0eb24b984386096597af9056ce5eeed4ec635969e63b4ebfe. 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/QZFZ42364979.