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 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 0x61ce334578030cb984bc9db406dab17cbe1089954441d0485517bbe117e7088b. 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/1db8c6d2-eedb-4007-a46f-be79ec10d2c5.json and https://artists.proofprofile.net/proofs/artist/1db8c6d2-eedb-4007-a46f-be79ec10d2c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Live Animation Heart x Algorhythm MUSIC ALBUM Tacitly
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 0x88fc1ea2e0dadd3ea9a0e2bdc0ceebfa77752be5265c364ac07b09afa2022262. 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/JPZ922103141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fc1ea2e0dadd3ea9a0e2bdc0ceebfa77752be5265c364ac07b09afa2022262. 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/JPZ922103141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6068759a0902b72ed25b92219a64a12ff4565830267c012d494b3e7ad17ca586. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/JPZ922104038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6068759a0902b72ed25b92219a64a12ff4565830267c012d494b3e7ad17ca586. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPZ922104038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7057f6788cbc93601056289bde972d00c206e9e1a3bcee2d6cd88ab31a7defea. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPZ922105849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7057f6788cbc93601056289bde972d00c206e9e1a3bcee2d6cd88ab31a7defea. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/JPZ922105849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a10dd8f4b6969619728ae4c43e952b342dde99717d1737fff498773c93e8f4. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/JPZ922111970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff52cf7d4c0f43b1fe1062a627ac089e92d5ea7aaf25cbce45e2d86f84e6cbbe. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPZ922113865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff52cf7d4c0f43b1fe1062a627ac089e92d5ea7aaf25cbce45e2d86f84e6cbbe. 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/JPZ922113865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc872ed04a85a1f4750e22bea117e3040e7151642a492b7f097202f8ac335fc. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/JPZ922204676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf325b1687190850af200295357d8edba15c8d15a13718d6ef3b0777c820e2cc. 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/JPZ922301105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508249dd0f066fd6703ce1114e5f8fa709a4992b70f75297d0339f16a9461c3c. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/JPZ922400805.
Head in The Clouds, Heart With The Stars
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dead6bdee591f0ef9942bf212519fc6d2759f0790cd97fb7581e613048063a8. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/JPZ922408070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f1d06d5a3ae2ba31af6458e57d03939d4877dfb972580f2da2a568dc0d13bb. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/JPZ922500506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f1d06d5a3ae2ba31af6458e57d03939d4877dfb972580f2da2a568dc0d13bb. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/JPZ922500506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9178e27b7ba81714627cb1d355299d6b3b898b4f810128abf4bcae897ee6ecd7. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/JPZ922500507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaa2beea45ce6d21332f8601f129db22224d5b5e1d13a7a93aa4c6bcafe03c6. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPZ922501811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8399e24be1cadc4530524e47ad2c106f3f413bfd7dc6fd85cde644cc9f54acdc. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPZ922501813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaa2beea45ce6d21332f8601f129db22224d5b5e1d13a7a93aa4c6bcafe03c6. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/JPZ922501811.