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 0x369cb880b0222b725b6e858fdfb03a75bad899e9c56b89a2d7b8898ba1b34b66. 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/c7074d50-3030-4c1b-b41b-11eff814ea7e.json and https://artists.proofprofile.net/proofs/artist/c7074d50-3030-4c1b-b41b-11eff814ea7e.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 0xa864c4c0b688c9a96d68d19e0c90abc7f93bb49755aaade61d84f24ba1cead1b. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USI4R0709526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8754bf575234ee6825d13666901ea9ed62e179b8317c76b13f440abf3b5826d0. 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/USI4R0709529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b689eae554ddadc73461f56cc973793e83365e69fdf1e3d53db1bfcab0d4c51. 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/USI4R0709532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6d871b74c24c5b2d47de4cead7ef7dae132e36b0c92c9b6fbcda78ffaf9f03. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:23:27Z), 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/DEQ120908657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5ac4cbc768da980a6158647888fb3e9dc88874ac5440ca580febc63e6c1a4c. 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/DEQ120908660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cc757945ebba69018fa43f84a0ade2c35562f64fd9fa93db5820ddc1c31dfc. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEQ120908661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c466421374196a61c84dab573706a2bb8ed0afa2d00358424ca9673ceb0ddd. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/DEQ120908663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c0813d342cf73a5eda54975334de89ea70e54506442ad9d2c0e7a01aceee52. 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/DEQ120908664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12c602735a15dc0fa75590d9347fec1582ebf1b1748f12eea7238490423c17d. 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/DEQ120908665.
The Devil Is A Dancer, The Piper Is A Madman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ee5ee12f9dd9320069311737c1ec3f610f93567a73eb4fec59d94937bc42d3. 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/USNE51100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb29c403094ac26800ac45f540366463931a002b2299c819523cb70fc734f9e0. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USNE51100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23123f7b583407a3ac899dc26e74326187a377d19f311fb42322490a55d74930. 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/USNE51100085.
Pale Rider (feat. Jessie Jones & Warren Thomas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434ca824d311618451e1c34c3348164f11dcad2b475f62d30141e98f61d0fe66. 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/USNE51700191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1b9cb0be6d45c3060510321e85cd68267a148118b893fa83cebfb107bf3168. 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/USNE51100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54a9ceca810282fde5f92f27473aea6090bf1244755849432a9aa2be2f02436. 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/DEQ020704756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554ef0abe3470a5b8cc7fe5ec3e71f51092beec222a297bcf2344a3a1daf684b. 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/DEQ120706148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39b32ddb87a816d4b1372286c000e98c72f77292eb00286b6a06eeee8a243e0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCACM1658572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fbe0e4c01a90b0e7ebaf09029d55c2c022e5e715ab0bb46527d21bcd89acc6. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/USNE51100051.
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 0xc4c8b100f540304295350972c1c0d0a072919ac5e36a362080efc8e6e79884b8. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USNE51100091.