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 0x8792ae67911a4b95ade65671ca1b951cae53acc6038d56c48db240b4918df239. 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/a738a010-202b-4fce-99ce-6166232b3611.json and https://artists.proofprofile.net/proofs/artist/a738a010-202b-4fce-99ce-6166232b3611.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 0xc7908afe4006f99433cc0a9591dd49ef70301574df17cb769f580ce09b81819f. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:26:18Z), 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/QZFZ62042031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f4c4455cbcb72e53f763a40642738e1d238e0459a54a1257d0d3a5d42b3a43. 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/QZK6L2063045.
Extratone Is Your Destiny - Aekhloria Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9d1653417241b2e5ede4c7fd5369bd18e5587f6950944e8771d3c633ec1d99. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZK6L2063047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ade0ee19fda3b23441cdb2aab88d08fe797cab1342bc10f9c750742d3a2af69. 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/QZK6L2148979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733421ae3db59f5f8e0e67208fb37487582030a316052ed2ed21d15cf9509f24. 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/FXQ692100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1555157ff4644db4f30150b56c309040934bc7b8fcb5d06a3b684d88beb492. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZMER2140141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09b773a73220e55d545cf4875da0adc2282785579a824d589006d2e2c5ee2b1. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/QZHN92262811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec794ecc150113839c451a1a373e106b1f333ab0f5effb8539c8ade41babfdc2. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:49:21Z), 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/QZMEP2279454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1489094f3736407ce6762235d2a8d1c5117d42104275eb587f7a67141a9bda1a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTAY2272617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b1ccc744069ec3d7ebbf5e751a60186f65f74f71d9b48d4b8ea42d430dfa6f. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FR9W12314572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed6ac1142180e6896df57877595bbfb85cb88d02cc5bb024333893ff3276770. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZMER2373651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d0c4f0c4682764960d98d5c4f4603038fff1d7ed8caeb95578401485283ef8. 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/QZNWV2387085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d0816da533d6e3f000c6f662a0e90a58917ffbfa88b8c14780ed50a6c4ef77. 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/QZTBD2362677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5a59fdde3e948b551211f5f22cf30f31e4cda2526ebf2d18815f54d3e94cca. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZHN72426299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f87448e2ce13dff575ac740dafa127c24197ea5a45c9796081dee4e9a80e618. 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/QZTAS2467584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac24fbf27cfeaa09212a70b4966a2c774aac552c8d65876d163809e80e48753f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZTAX2450830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b166e35176f24099f2a3b4810b23be3737f26d61816ec64efec2651c3cb092. 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/QZTB72438658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fcad4243cce169563bcbbe6d671ef6d469e90829c6753b0ff857b7ef9a25f6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:07:18Z), 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/FR9W12434752.
A Five-Quarter Waltz in D# (2025 Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef68f1133b8ffdb758eefdd8f51ffcec93d389d5d72d76c734290faf57a87f99. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:43:41Z), 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/QT3F22582049.