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 0xdb3784747042552b09787848ddccea826d620060d7eff12c3faebee525ae58bf. 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/44856025-ce1a-4a93-93eb-50bd674725a3.json and https://artists.proofprofile.net/proofs/artist/44856025-ce1a-4a93-93eb-50bd674725a3.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 0x982deb685b3c15cbbb32861fd75cdc69a4d2b4a16f247a4b83356cbbf50e1096. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:27:06Z), 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/QZ4JJ1795060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03f7f9977573f184b3b673c38ca3354e12111bb2843e5ab31bf0fe19b3a2451. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZ4JJ1795061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89838e79248fe5f024562bbab5b4e45a714bccd2276804ba274fe76da8f73c1. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZ4JJ1795063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2a2a0053cebf6ac87debb3953e474c4c4a6547dd7b21c9984968f163193b37. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZ4JJ1795065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bfece8f153c735a03dca7c39dd84f629f0a17d27a5ef928fe92dbdef71460e. 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/QM2PV1794829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771ae00ae58062e381b7c6791fc2d3b99ae26bd8b2b5d7422fa00d795e448ce6. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:50:03Z), 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/QM2PV1794830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7d4c4a35d656257eb2b12b6c97b5b9fca8de5a8d290ec93e1ce2c8dd90e790. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UST8K1759647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d2ee443b8bf365189808ced0e1ed56b10a31626406c6efb769ae0336d70183. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZANL1788870.
Quiet Dreams of Crowns and Metamorphosis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd8aa20787a09dd03b11ed296f7303d2c3cb5a6723ee97077c8ec26c2e539b1. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:16:41Z), 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/QM4DW1827168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfff31b2c5fead718a0c8529ff49e54e61038d445ee3285bb832f786587de843. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZDA61838085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb5cee2d588e3b7b3fdadf655bffbcff48eee197e1854b3e6972d4c0ef12bb5. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:05:11Z), 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/QM2PV1816383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c0102be1fda61708f96b5fddd0069f26065255c22b9284cc98c89bf68536f4. 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/QZES51804908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18149c95ffd92b4fdd01378f02a6d6a66602d2fb026141e2d1e8297e2a961a9. 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/QZES61857835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe556a24a325ebdfbdcd37e3aaa67a6d7862352a4e3abe949d9118d0b0d33fa5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFYW1912829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596ed503a860e1405d1875cd0ef99ce8b5149cc409971e95fa4cb8d9c54fa6a8. 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/QZFYY1914807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a194ff7c3ebdec5dc5dd1f83b1fa8e12fc6a623d2d3e43f32e4b67359d8d87e. 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/QZHN31927108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a406f56ff0da799c3a8d3d7f34bea678dcf5a1a68ba5f6a7b7cc692042ac3ca. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZFZ22254458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48df59e26913674108cbb24a6a6914c6fb5106da3e021210bbf8764c21eec49. 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/QZK6L2258488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3762d82b9bf4691ab2ecc4a32f1d856cdf8b6d0b415d4832505a58ebeccb0b82. 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/QZFYX2382111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2045dae8440dd709dbe2713b84709f84f00367d7846b3d9023924e887c48c9c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZWFP2474009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859f9b04f5d7e2425b8f2c40efb916be02e4f41d2cb69728136993b8cb3976e1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZZ7P2471673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388c86dbbc7d8a72a132e59e4c43e7c16ac09efb6b491734ec8539a26cc8cfc2. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T07:55:19Z), 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/QZWFE2507114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e0b89d6f7ae98855b07838c2dd58fabfaf4c5ba6f5aa61cc8dc52d2ff2d607. 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/QZCE61876427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae80311cdd5d1726faf4827f81efae26abaafe4682fc55b50c4c49ca9fa0972. 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/QM4DW1850683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8137aa22a9de2ed9aba1d80e2cf33ac9b7f94858b31da17f8fcad88f05189b5a. 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/USCGH1869132.