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 0x3aff043d285e0e16392841fe3f511f93fa4d606ee6090349aeaed19dbdc47562. 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/db2ced05-2094-4697-9ed2-bee94f51c27d.json and https://artists.proofprofile.net/proofs/artist/db2ced05-2094-4697-9ed2-bee94f51c27d.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 0xb1ed8e16ab905e11451dde6c39e5cfadb031b58c6d713bb69d31f08c54115574. 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/JPZ921211024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ecc32141e77326782899e55026f9209f0729d99c92acabbddccbcd15df5561. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPZ921315573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7874f7fadc3a8963059f0d899297d71d13a475efbd6f5e799689729c5356a4e. 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/JPZ921610626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5fea2dd763db4fbd9dc5d09a37ee128cb7eb78fe83337cad44c12befa331f2. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:45:23Z), 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/JPZ921615354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a787a24c553bfd8138f9cceaad2bca17b72c7eb71ce09de17f0ccdb08da5e8c. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:42:56Z), 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/JPZ921804874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ba991e50032aecce4014e7db8a2848fe498a3e5a7d245527b84106bfd0570a. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/JPZ921804876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31a9b53554b5efb6b887e2de372e02bf3d814c5c74026e7ba94caa87862020f. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JPZ921804877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f99c178cc8594e2413890d3e69224a3e51930d56e163e24379b02b8afaa7254. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:21:45Z), 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/JPZ921713240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e93a214aa1d5ba5e18382a81a7e6168d8f6b6b02ae3929e021fcd34c1a70d1. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/JPPO02000513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef5b334001de207841825472d74174632d32f6436ff26cf78bbb35d8b9c0233. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:49:36Z), 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/JPPO02000517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24c65352bd9dbd9789625ec36f66a7f5e2a419a157e20a465d114bffc03fe16. 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/JPPO02100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffae7ffa95f6340812070d2c5c6db39738245e9b0edf7b23e42c2acd946ed41. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:23:40Z), 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/JPPO02000512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea2f8105f68dee5e3768f22342f5070959f1a236d1906c861ca5cf16385a754. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/JPPO02002050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97a110b72298aedd9dcca192b059d63cf431144b6dc5f368f76ba7071f6c384. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/JPPO02100197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cf6af85b31e95d5ce3989182b99b08828e8f2aaffcb8c070b0517b1cc5c4bc. 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/JPPO02202302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e4c0bc42b3665ea0a9befb91dcfcd5736e0954c5f3b670d51ecaa33e8042f4. 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/JPPO02202308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165837d44d2fceb7ff83e701300a3510860819314d066798f6210be4f29a090d. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:55:19Z), 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/JPPO02303373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5fe38296a93be9ba1bf9cf183e215f34438b44ac94b5dcba673b8e5824059c. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPPO02403189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f6f7b52101ee181e1267a05856a8a62263db5ca7d880f3d3f2328435476770. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPL542500324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fc33b4f8213fa83bd638bef94b39c989a957b7ed878c13ffb0590368953343. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPL542500325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1770e7102260813480366213ce4b485d706a15acce396c4ef8610256c4a3046e. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:50:15Z), 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/JPL542500326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a82f401949de8ed051560f8570977cbfe5efb774d9c47a213bbc12769ea08b9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPL542500327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755ed9169023d2eb733b07dcf888b141b482b836abf8cfd007aa9c1f862b0707. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPL542401354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1dcae5c7e99fa8cef1482ccfda303b7f4a675cc4b7a0c58cb7f27868e523aa. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPL542500328.