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 0x0555fb64aeeec321b6afcd03f42caee0c668937c5f9ef1c9a1cf0f896b4f4806. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c06db527-1def-46f9-b946-5e828c6fed8f.json and https://artists.proofprofile.net/proofs/artist/c06db527-1def-46f9-b946-5e828c6fed8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
the flowers froze last night, but they were still pretty
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 0x9c08822340d9b99967aa6ffb879bb11bdd38cdbe80cafd9f5d09438db35dd73b. 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/CA5KR2350442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e016d421e47acd3a568a4f3686fecf19d94a5d6ad3dc723a4f9fe38eb50626a. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZTH92382225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fd849f533b6c2ee88262bc8312d4c10a21c66c40194ff689b587e0f38902b5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZFP52434931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fb24b5a2adcceb69cbb5da3d223c089f732f21e42705205e2b4ca1ffe3d4b6. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:02:52Z), 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/QM8DG2481296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471c37c55aafb6fa086dee1f1af6e6e7333cf6753ca53eb7cf8f5da666e48385. 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/QM8DG2419027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fb24b5a2adcceb69cbb5da3d223c089f732f21e42705205e2b4ca1ffe3d4b6. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM8DG2481296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd543ac71bf747fac56c5c86c1781fff6576d48301f828cec34ff60a1455a3a8d. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZFP52407293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d13f3442d7ac7a2c8340a2762159e97e608d41af9e30849ca8e4e7a12e6e680. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:03:16Z), 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/QZH5E2419724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5e0585cd97e8a5650d6eaee42e99d0d87281125f05fe42238f818f80f78501. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZH5E2407802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05ea4fa65a9647c0dfcb8e9c0726d6e0b54d79a204d7108e701af9b227d2b23. 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/QZFP52461002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e93eb0ed9b271a1c75c4dea58ec35de0bb3be07b748ca5fef3de11604d6f5bc. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZH5E2422369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d343d64221f072d82db7b6fe989c6f3e06dc5ecad70be4a952dd7b058f8fbc5. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZFP52406027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d3dfc3d0f16ac72989f88d63512c365a9a3817b004606d032510010738947c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZFP52325318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30e15cab50baab145e2681ef2fd352442967de33a067bad419a002ed021567c. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QM8DG2531269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42686713fa4ce66d2544063b0d6157455c5a75eb180fd87aad242fd919dbfe1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM8DG2547280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7c44f8551d0b10e7506447fe11d6116e564fb97db17aec3bb2cb06489f055f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZH5E2475207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761d011ac47b232be6bc48c07e7f96e8ac4d274ce2da690f5e26c3ee5fc1c1b2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZHZD2069516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063c01abbfa4937c68c45dec283fd746ae5eebe2c563d169637230e86093d6e6. 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/QZTGW2403415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0f274dd723b0f344600b1d62b1aa169ef7b326131c85f5cbdb5bc420764650. 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/QZTGW2403416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba83b15c405386f58a77b01d85b51b5015b961a5664b75bf2f09b3545b9dcced. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZVK62300009.
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 0x838131ac11601d51c0d51eefb62669754cbfd5fc07bfbae521fa2235c5407511. 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/QZHZD1916356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafb32f0efa0b25a4b3d9258b2fabded0430a853333a0cdbfacaf15b7772e2ab. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/QZ5FN2151108.